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BRL 1964, IBM 1401, starting page 0144

 


    IBM 1401
    Data Processing System

    MANUFACTURER
    International Business Machine Corporation

    
    Photo by IBM

    APPLICATIONS
    General purpose computing and data processing.

    PROGRAMMING AND NUMERICAL SYSTEM
    Internal number system       Binary coded decimal
    Decimal digits/word          Variable length
    Decimal digits/instruction   One to eight
    Instructions/word            Variable length
    Arithmetic system            Fixed point
    Instruction type             One or two address
    Instruction word format
    +----+-------------+-----------+------------+
    | OP | A/I Address | B Address | d Modifier |
    +----+-------------+-----------+------------+
    | X  |    XXX      |   XXX     |   X        |
    +----+-------------+-----------+------------+
    +----+-------------+-----------+
    | OP |  (A/I)      |     B     |
    +----+-------------+-----------+
    | X  |    XXX      |   XXX     |
    +----+-------------+-----------+
    +----+-------------+-----+
    | OP |   (A/I)     |  d  |
    +----+-------------+-----+
    | X  |   XXX       |  X  |
    +----+-------------+-----+
    +----+-------------+
    | OP |   (A/I)     |
    +----+-------------+
    | X  |   XXX       |
    +----+-------------+
    +----+----+
    | OP | d  |
    +----+----+
    | X  | X  |
    +----+----+
    +----+
    | OP |
    +----+
    | X  |
    +----+
    OP   1 character operation
    A/I  3 character storage address where A is location 
           of a data word or I is address of next instruction
    B    3 character storage address of a data word
    d    1 character modifier

    Automatic coding includes a symbolic programming system.
    Registers
       I Address Register
       A Address Register
       B Address Register
BRL 1964, IBM 1401, starting page 0145
       A Register
       B Register
       A Index Register
       B Index Register
       AB Index Register
    A and B Address Registers allow chaining of instructions,
    i.e., performing a series of operations on several
    fields that are in sequence in storage. Less time is 
    required to perform the operations and space is saved
    in storing instructions.

    Indexing is part of optional advanced programming 
    feature which also includes abilities to move full
    records and to store A and B Address Registers for
    easy program modification.

     ARITHMETIC UNIT
                  Incl. Stor. Access
                   Microsec
    Add            300 (8 + 8 digits)
    Mult         1,960 (6 x 4 digits)
    Div          3,002  (10/4 digits)
    Multiply-Divide times are for the Multiply-Divide feature installed.
    1401 is an "Add-to-Storage" system. No additional
    instructions or time is required to store results.
    Arithmetic mode             Serial (by character)
    Timing Synchronous          Asynchronous
     (Depending on function)
    Operation                   Sequential Concurrent
     (Depending on function)
    Timing - Operations
        Card input/output can often be overlapped with processing.
        Print output can be partially overlapped with processing; 
          or can be completely overlapped with print storage installed.
    Magnetic tape input/output can be partially overlapped. 
    Internal processing is serial.

    STORAGE
                         No. of                  Access
    Medium               Alphanum/Char           Microsec
     Magnetic Core     1,400; 2,000; 4,000;        11.5
                       8,000; 12,000; 16,000
    Magnetic Disk          10,000,000         500,000 (Avg)
     (Type 1405) Model I
    Magnetic Disk          20,000,000         500,000 (Avg)
     (Type 1405) Model II
        50,000 two hundred character records on 25 disks
    (Model I).
       100,000 two hundred character records on 50 disks (Model II).
    One access arm standard; another available as special feature.
    Magnetic Disk Storage Drive
    (Type 1311) Model 4 - first drive on system.
    (Type 1311) Model 2 - additional up to 4) drives on system.
    "Comb" access consists of five arms, each with 
    two read-write heads. Removable disk packs provide
    unlimited storage. Each disk pack composed of six 
    disks providing ten recording surfaces. Each surface is
    made up of 100 concentric tracks; each track is divided 
    into 20 sectors; each sector holds 100 characters.
    Disk pack capacity is 2,000,000 characters and with track
       - record special feature approximately
    3,000,000; total on-line capacity 10 to 15 million characters. 
    Average access 250,000 microseconds; with
    direct seek special feature, average access time is 150,000 microseconds.
    Magnetic Tape
    (See chart below)

BRL 1964, IBM 1401, starting page 0146
 

    INPUT
         Medium                              Speed 
    Cards (IBM 1402 Card Read Punch)         800 cards/min
       Optional 51-column interchangeable Read Feed and Punch 
        Feed Read special features. 
    Magnetic Tape
     Models 7330, 729II, IV, V, and 7340.
    Paper Tape (IBM 1011 Paper Tape           500 chars/sec
     Reader).
        Control panels decode 5,6,7, or 8-track tape data
           and convert it to BCD characters.
    Optical Character Reader                  300 - 420 doc min
          (IBM 1418 & 1428)
    Numeric or alphabetic data (according to machine type)
      read from cards or documents. Characters,
      including certain special characters, which may be read 
      are 0.093 in. high, printed by an IBM 407, an IBM
       Elec. Typewriter, or an IBM 1403 Printer, Model 1 or 2. 
    Paper or card dimensions vary according to
    equipment model; horizontal width 3 to 8-3/4 in. and 
    vertical dimension of 2-1/3 to 4-732 in. Mark
    reading ability.

    Console Inquiry Station (IBM 1407)
    A modified IBM Elec. Typewriter can be used to obtain 
    or enter data on a limited basis; primarily used
    with disk storage. IBM Console, Model 3, used to enter
    or obtain (print) data, can also be attached to
    terminal equipment, thereby providing buffered, remote 
    communication ability.

    OUTPUT
     Medium                                Speed 
    Cards (IBM 1402 Card Read Punch)       250 cards/min 
    Magnetic Tape
       Models 7330, 729II, IV, V, and 7340.
    Tape Punch (IBM 1012)                  150 chars/sec
       Punches into paper or Mylar tape 5, 6, 7, 8-track.
    Printer (IBM 1403 Models 1 & 2)        600 lines/min
    Numerical Print Feature, option on the 1403, allows 
        1,385 lines/min printing of purely numerical data. 
    IBM 1404 Printer, used in lieu of 1403, has all 
    continuous form printing functions of 1403, plus a 
    dual channel cut-card feeding mechanism.

    CIRCUIT ELEMENTS OF ENTIRE SYSTEM
     Type            Quantity
    Diodes           6,213 - 14,171 (Min. and max. systems)
    Transistors      4,315 - 9,805 (Min. and max. systems)
    Magnetic Cores
    Type 17         17,540 Minimum system
    Type 24            200
    Type 17        129,540 Maximum system
    Type 24            600
    Type 18          1,120

    CHECKING FEATURES
    Parity and validity checks are made. Programming
    checks, balances and controls may be made. 
      1402 Checking
        Automatic hole count check between read stations.
        Automatic Hollerith Validity check before storage entry.
        Automatic hole count check between punch station 
           and punch check station. 
      1402 Translation
        Automatic card to internal BCD input translation.
        Automatic internal BCD to card output translation. 
      1403 Checking
        Automatic parity check of character to be printed.
        Automatic validity check of character tobe printed.
        Hammer action to be performed.
        Hammer action performed. 
      Magnetic Tape Checking
        Vertical parity check by character.
        Horizontal check by record.
        Two-gap head verifies validity at the time data is written.
        Dual-level sensing provides additional checking of 
           tape read and write operations and error-free
           operation on valid data. 
      IBM Phase Encoding
         Provides highly reliable method of bit encoding on 
            Hypertape so all single-bit and most double-bit errors
           can be corrected.

    POWER, SPACE, WEIGHT, AND SITE PREPARATION
    Power, computer        2.88 Kw 3.2 KVA min. = Model A
                   (Max.) 12.15 Kw 13.5 KVA 0.80 to 0.90 pf
                    max. = Model C + 6 - 729s
    Power, air conditioner approx 3 Kw (Min.)
                          approx 11 Kw (max.)
    The KVA and power factor varies. 
    Minimum system requires 1 Ton,
        maximum system requires 3 1/2 Tons.


                            Minimum         Maximum 
    Volume, computer         117.2 cu ft     403.8 cu ft
    Area, computer            33.8 sq ft      80.8 sq ft
    Room size                239.0 sq ft     463.0 sq ft
    Floor loading             50.0 lbs/sq    500.0 lbs concen
                                      ft            max.
    Volume, air conditioner
     1 Ton Unit                  6.0 cu ft
     5 Ton Unit                 84 cu ft
    Area, computer - 1 ton       3 sq ft
    Area, computer - 5 ton                    12  sq ft
    Capacity, air conditioner Depends on manufacturer.
    3 1/2 tons are required for maximum size system, a
    5 ton unit would be nearest size available.
    Weight, computer         3,063 lbs (min)        11,530 lbs (max)
    Normal air conditioning will usually be adequate, 
      providing the capacity is available to handle the
       added B.T.U. of heat generated by the system.
    Relatively few restrictions are placed on the 
    arrangement of the 1401 System units. 
    Electrical requirements   - 208 or 230 volts 
         (+ 10%), 3-phase (4-wire), 60 cycle (+ 1/2 cycle).
    Environmental requirements
      Power On (system operating) temperature 60o - 90oF. 
      relative humidity 20 - 80%, air filtration - 20%
      minimum by National Bureau of Standards discloration
      test for mechanical-type filter.
    Power Off (extended non-operational period) 
         temperature 50o - 110o F., 
         relative humidity 0 - 80%.
    These environmental requirements are less stringent 
    than those that apply to storage areas for IBM cards
    and magnetic tape.
    It is recommended that instruments capable of recording 
     temperature and humidity be provided.

    The 1401 System does not require a raised floor. 
    Also, the use of a raised floor reduces the possibility of
    damage to cables and improves the appearance of the 
    installation, as well as promoting good safety practices.

    PRODUCTION RECORD
    Several thousand in operation.

BRL 1964, IBM 1401, starting page 0147
 

    COST, PRICE AND RENTAL RATES
                                     Purchase   Monthly
                                     Price      Rental
    Basic System IBM 1401           $ 83,700    $1,200
     Processing Unit, Model A-1
    IBM 1402 Card Read Punch,         30,000       550
     Model 1
    IBM 1403, model 1                 32,900       725
                                     -------     -----
                          Total      146,600     2,475

    Additional Equipment*
    IBM 7330 Magnetic Tape Unit       22,000       450
     729 II Magnetic Tape Unit        36,000       700
     729 IV Magnetic Tape unit        41,250       900
     729 V Magnetic Tape Unit         37,200       750
     7340(2) Magnetic Tape Unit       68,500     1,050
    *Appropriate Model of 1401 processing unit must be 
    specified as well as 7641 Hypertape Control for 7340
    tape units.
    IBM 1406 Additional Core          24,500       575 to
    Storage (3 models)             to 67,100     1,575
    Systems rental range $2,700 - $8,800. Maintenance
    contracts available for purchased equipment.

    PERSONNEL REQUIREMENTS
    Varies considerably according to installation and application.
    Training made available by the manufacturer to
    the users includes programming and practical
    experience on systems.

    Programming systems available are:
       File (disk storage) Utilities and File Organization programs
       Report program Generators        Autocoder
       Testing-debugging aids           COBOL
       Sorts                            FORTRAN
       IOCS                             Card Utilities
       Sub-routines                     Tape Utilities
       Service routines                 FARGO
       Symbolic Programming System

    RELIABILITY, OPERATING EXPERIENCE
    Reliability is achieved by utilizing solid state 
    devices, i.e. core storage, printed circuits, and 
    transistorized circuits. Checking, as previously detailed, 
    also provides reliability.

    ADDITIONAL FEATURES AND REMARKS
    Outstanding features are: high-speed card input 
    output, low and high-speed magnetic tape
    input/output, paper tape input/output, disk file 
    storage including removable disk packs, direct
    communication abilities between systems and 
    terminal equipment, direct entry of data with banking
    (IBM 1412-1419 MICR) equipment, completely variable       
    length core storage assignments, "add-to-storage"
    simplifies programming, and singleinstruction print
    editing. Column binary device.

    Unique system advantages are: solid-state engineering,
    economical, independent data processing system, 
    auxiliary system to 700/7000 series, and simplified programing.

    Growth of the system is permissible in the basic 
    card system, the advanced card system, and the card
    and magnetic system.
    Optional features as required, are available.

    
   


BRL 1964, IBM 1440, starting page 0148
 




    IBM 1440
    Data Processing System

    MANUFACTURER
    International Business Machines Corporation.

    
    Photo by IBM

    APPLICATIONS
    General purpose computer for small and medium sized businesses.

    PROGRAMMING AND NUMERICAL SYSTEM
    Internal number system       Binary coded decimal
    Decimal digits/word          Variable
    Decimal digits/instruction   Variable (1 to 8)
    Instructions/word            Variable
    Arithmetic system            Fixed point
    Instruction type             Variable
     Up to two addresses with modifier and indexing. 
    Instruction word format
    +-----+----------+----------+----+----+
    | B   | I  I  I  | B  B  B  | d  | 0  |
    +-----+----------+----------+----+----+
    | Iop | I1 I2 I3 | I4 I5 I6 | I7 | I8 |
    +-----+----------+----------+----+----+
     or as OP AAA BBB d_ 

    Automatic built-in subroutines  
      Add/Subtract Arithmetic  
      Move and Load Data Fields  
      Hi-Lo-Eq. Compare 
      Expanded Edit  
      Indexing  
      Bit Test  
      H Multiply Divide 
    Registers and B-Boxes  
      Op Register  
      B-Data Register  
      A-Data Register  
      3-position Address reg: A, B, I and Main  
      A-Aux, Register and B-Aux,Register (with M/D)

    ARITHMETIC UNIT
    Add T = 11.1 (LI + 1 + La + Lb) microseconds 
    Mult T = 11.1 (LI + 3 + 2 LC + 5 LCLM + 7 LM) 
    Div T = 11.1 (LI + 2 + 7 LRLQ + 8 LQ)
    LI = Length of Instruction
    LC = Length of Multiplicand Field
    LM = Length of Multiplier Field
    LR = Length of Divisor
    LQ = Length of Quotient Field
    L a =Length of A-Field
    Lb = Length of B-Field
    Arithmetic mode          Serial
    The arithmetic unit is parallel-by-bit and serialby-character.
     The computer is of the add-to-storage variety.
    Timing                   Synchronous and Asynchronous
    Operation                Sequential
    The system functions on a parallel-by-bit, 
      serial-by-character principle.
    I/0 operations are asynchronous when the device
    does not have the associated buffer feature. All
    internal operations are synchronous, being governed 
    by a crystal-controlled oscillator.
    Unbuffered I/0 devices control the clock on a demand 
    basis when they are being serviced by the processor.

    STORAGE
                          No. of           No. of           Access
                          Medium Words     Characters       Microsec
     Magnetic Cores       Variable         4,000 - 16,000   11.5
     Available in 4,000 increments
    Disk Stor. Units      Variable                          250,000
     2 IBM 1311's                      4,000,000           (average)
     5 IBM 1311's                     10,000,000
    With "Move Track Record" feature the number, 
    of digits is increased to 2,980,000 per unit.
    With "Direct Seek" feature the average access
     time is decreased to 185,000 microseconds. 

    

BRL 1964, IBM 1440, starting page 0149
 
    
    Photo by IBM

    The photos show the operator loading an IBM 1311
    memory disk pack on the IBM 1440 computer. In the
    picture sequence, the operator carries a disk pack 
    containing six 14-inch memory disks to the IBM 1440.
    She places the disks on the disk storage drive 
    spindle, removes the pack cover, and the unit is ready to
    operate. The time required is less than one minute. 

    Disk packs can be removed in the same manner and
    stored like books on a library shelf until they 
    are needed again. This data storage technology makes it
    possible for a user to maintain a separate disk 
    pack for each of his major data processing jobs. The disk
    packs, which weigh less than 10 pounds, have a 
    storage capacity of nearly 3,000,000 alphanumeric
    characters.
    CHECKING FEATURES

    Processor IBM 1441
       OP - Register Validity 1 
        A - Register Parity  
       B - Register Parity 
       Storage Address validity 
       Address Modifier Parity 
   IBM 1442  
       Punch Echo-check  
       Head validity  
       Read registration 
       Feed check 
   IBM 1443  
       Sync check  
       Parity check 
   IBM 1447  
       Typer odd bit check  
       Buffer odd bit check (With buffer only  
       KYBO Contacts VRC 
   IBM 1311  
       Parity  
       Read back check  
       Address compare  
       Record length


    POWER, SPACE, WEIGHT, AND SITE PREPARATION
    Requirements vary widely, depending on system 
      configuration.

    COST, PRICE AND RENTAL RATES
    $90,000 and up, depending on system configuration.
    $1,500 and up, monthly rental, depending on system 
        configuration.

    RELIABILITY, OPERATING EXPERIENCE
    The electronic elements for the system are tested, 
    under quality control procedures before shipment, and
    the system is tested after installation. and 
    periodically thereafter to assure maximum reliability.



BRL 1964, IBM 1460, starting page 0150
 

    IBM 1460
    Data Processing System

    MANUFACTURER
    International Business Machine Corporation

    
    Photo by IBM

    APPLICATIONS
    General purpose computer that functions like the 
    widely-used IBM 1401, yet processes information
    internally almost twice as fast. The IBM 1460 
    features an 1,100 1/m printer. The IBM 1460 gives 
    IBM 1401 users who require increased processing 
    capabilities a logical advance to a larger computer. 

    When used as auxiliary equipment for IBM 7000 series 
    computers, the IBM 1460 will accelerate processing operations
    in many industries which require faster printed 
    and magnetic tape output.

    PROGRAMMING AND NUMERICAL SYSTEM
    Internal number system         Binary coded decimal
    Decimal digits/word            Variable length
    Decimal digits/instruction     one to eight
    Instructions/word              Variable length
    Arithmetic system              Fixed point
    Instruction type               One or two address
    Instruction word format
   
    +----+-------------+-----------+------------+
    | OP | A/I Address | B Address | d Modifier |
    +----+-------------+-----------+------------+
    | X  |    XXX      |   XXX     |   X        |
    +----+-------------+-----------+------------+
    +----+-------------+-----------+
    | OP |  (A/I)      |     B     |
    +----+-------------+-----------+
    | X  |    XXX      |   XXX     |
    +----+-------------+-----------+
    +----+-------------+-----+
    | OP |   (A/I)     |  d  |
    +----+-------------+-----+
    | X  |   XXX       |  X  |
    +----+-------------+-----+
    +----+-------------+
    | OP |   (A/I)     |
    +----+-------------+
    | X  |   XXX       |
    +----+-------------+
    +----+----+
    | OP | d  |
    +----+----+
    | X  | X  |
    +----+----+
    +----+
    | OP |
    +----+
    | X  |
    +----+
    OP   1 character operation
    A/I  3 character storage address where A is location 
           of a data word or I is address of next instruction
    B    3 character storage address of a data word
    d    1 character modifier

    Automatic coding includes a symbolic programming system.

BRL 1964, IBM 1460, starting page 0150
 
    Registers
       I Address Register
       A Address Register
       B Address Register
       A Register
       B Register
       A Index Register
       B Index Register
       AB Index Register
    A and B Address Registers allow chaining of instructions,
    i.e., performing a series of operations on several
    fields that are in sequence in storage. Less time is 
    required to perform the operations and space is saved
    in storing instructions.

    Indexing is part of optional advanced programming 
    feature which also includes abilities to move full
    records and to store A and B Address Registers for
    easy program modification.

     ARITHMETIC UNIT
                  Incl. Stor. Access
                   Microsec
    Add            300 (8 + 8 digits)
    Mult         1,960 (6 x 4 digits)
    Div          3,002  (10/4 digits)
    Multiply-Divide times are for the Multiply-Divide feature installed.
    1401 is an "Add-to-Storage" system. No additional
    instructions or time is required to store results.
    Arithmetic mode             Serial (by character)
    Timing Synchronous          Asynchronous
     (Depending on function)
    Operation                   Sequential Concurrent
     (Depending on function)
    Timing - Operations
        Card input/output can often be overlapped with processing.
        Print output can be partially overlapped with processing; 
          or can be completely overlapped with print storage installed.
    Magnetic tape input/output can be partially overlapped. 
    Internal processing is serial.

    STORAGE
                         No. of                  Access
    Medium               Alphanum/Char           Microsec
     Magnetic Core     8,000; 12,000; 16,000        6
    Magnetic Disk          10,000,000         500,000 (Avg)
     (Type 1405) Model I
    Magnetic Disk          20,000,000         500,000 (Avg)
     (Type 1405) Model II
        50,000 two hundred character records on 25 disks
    (Model I).
       100,000 two hundred character records on 50 disks (Model II).
    One access arm standard; another available as special feature.
    Magnetic Disk Storage Drive
    (Type 1311) Model 4 - first drive on system.
    (Type 1311) Model 2 - additional up to 4) drives on system.
    "Comb" access consists of five arms, each with 
    two read-write heads. Removable disk packs provide
    unlimited storage. Each disk pack composed of six 
    disks providing ten recording surfaces. Each surface is
    made up of 100 concentric tracks; each track is divided 
    into 20 sectors; each sector holds 100 characters.
    Disk pack capacity is 2,000,000 characters and with track
       - record special feature approximately
    3,000,000; total on-line capacity 10 to 15 million characters. 
    Average access 250,000 microseconds; with
    direct seek special feature, average access time is 150,000 microseconds.
    Magnetic Tape
    (See chart below)

BRL 1964, IBM 1460, starting page 0152
 

    INPUT
         Medium                              Speed 
    Cards (IBM 1402 Card Read Punch)         800 cards/min
       Optional 51-column interchangeable Read Feed and Punch 
        Feed Read special features. 
    Magnetic Tape
     Models 7330, 729II, IV, V, and 7340.
    Paper Tape (IBM 1011 Paper Tape           500 chars/sec
     Reader).
        Control panels decode 5,6,7, or 8-track tape data
           and convert it to BCD characters.
    Optical Character Reader                  300 - 420 doc min
          (IBM 1418 & 1428)
    Numeric or alphabetic data (according to machine type)
      read from cards or documents. Characters,
      including certain special characters, which may be read 
      are 0.093 in. high, printed by an IBM 407, an IBM
       Elec. Typewriter, or an IBM 1403 Printer, Model 1 or 2. 
    Paper or card dimensions vary according to
    equipment model; horizontal width 3 to 8-3/4 in. and 
    vertical dimension of 2-1/3 to 4-732 in. Mark
    reading ability.

    Console Inquiry Station (IBM 1407)
    A modified IBM Elec. Typewriter can be used to obtain 
    or enter data on a limited basis; primarily used
    with disk storage. IBM Console, Model 3, used to enter
    or obtain (print) data, can also be attached to
    terminal equipment, thereby providing buffered, remote 
    communication ability.

    OUTPUT
     Medium                                Speed 
    Cards (IBM 1402 Card Read Punch)       250 cards/min 
    Magnetic Tape
       Models 7330, 729II, IV, V, and 7340.
    Tape Punch (IBM 1012)                  150 chars/sec
       Punches into paper or Mylar tape 5, 6, 7, 8-track.
    Printer (IBM 1403 Models 1 & 2)        600 lines/min
    Numerical Print Feature, option on the 1403, allows 
        1,385 lines/min printing of purely numerical data. 
    IBM 1404 Printer, used in lieu of 1403, has all 
    continuous form printing functions of 1403, plus a 
    dual channel cut-card feeding mechanism.

     CHECKING FEATURES
    Parity and validity checks are made. Programming
    checks, balances and controls may be made. 
      1402 Checking
        Automatic hole count check between read stations.
        Automatic Hollerith Validity check before storage entry.
        Automatic hole count check between punch station 
           and punch check station. 
      1402 Translation
        Automatic card to internal BCD input translation.
        Automatic internal BCD to card output translation. 
      1403 Checking
        Automatic parity check of character to be printed.
        Automatic validity check of character tobe printed.
        Hammer action to be performed.
        Hammer action performed. 
      Magnetic Tape Checking
        Vertical parity check by character.
        Horizontal check by record.
        Two-gap head verifies validity at the time data is written.
        Dual-level sensing provides additional checking of 
           tape read and write operations and error-free
           operation on valid data. 
      IBM Phase Encoding
         Provides highly reliable method of bit encoding on 
            Hypertape so all single-bit and most double-bit errors
           can be corrected.

    POWER, SPACE, WEIGHT, AND SITE PREPARATION
     Requuirements vary widely, depending on the system
     configuration.  Similar to IBM 1401



    COST, PRICE AND RENTAL RATES
       $479,000 and up depending on system configuration.
       $9,800 and up depending on system configuration.

    PERSONNEL REQUIREMENTS
    Varies considerably according to installation and application.
    Training made available by the manufacturer to
    the users includes programming and practical
    experience on systems.

    Programming systems available are:
       File (disk storage) Utilities and File Organization programs
       Report program Generators        Autocoder
       Testing-debugging aids           COBOL
       Sorts                            FORTRAN
       IOCS                             Card Utilities
       Sub-routines                     Tape Utilities
       Service routines                 FARGO
       Symbolic Programming System

BRL 1964, IBM 1460, starting page 0153
 


    


BRL 1964, IBM 1620 MOD 2, starting page 0154
 
    




    IBM 1620 MOD 2
    Data Processing System

    MANUFACTURER
    International Business Machines Corporation

    
    Photo by IBM

    APPLICATIONS
    System is used for the solution of problems in 
    petroleum, public utilities, optics, general manufacturing,
    general engineering, civil engineering and electronics.

    PROGRAMMING AND NUMERICAL SYSTEM
    Internal number system        Binary coded decimal
    Decimal digits/word           Variable length
    Decimal digits/instruction    12
    Instructions word             Variable field
     (1 instruction per 12 digits)
    Instructions decoded          50
     (43 standard, 7 optional)
    Arithmetic system             Fixed & floating point
     Floating point is a special  feature.
    Instruction type              Two address
    Number range                  Variable field
    Instruction word format
    +-----------+-----------+-----------+
    | 1       2 | 3       7 | 8      12 |
    +-----------+-----------+-----------+
    | Operation | P Address | Q Address |
    +-----------+-----------+-----------+
    Automatic built-in subroutines
    Variable length floating point arithmetic 
    operations are available as special features.
    Automatic coding
      Symbolic Programming System, FORTRAN & GOTRAN
    Registers and B-Boxes
    Indirect addressing plus immediate instructions 
      are standard instead of indexing. 
    Branch and Transmit instruction provides single 
      instruction linkage to subroutines.

BRL 1964, IBM 1620 MOD 2, starting page 0155
 

    ARITHMETIC UNIT
                   Incl. Stor. Access
                      Microsec
    Add             215 (10 digit average)
    Mult          4,260 (10 digit average)
    Div          11,490 (10 digit average)
    Arithmetic mode     Serial
     The IBM 1620 Model 2 is a two-address system and
    the operation times given above include access time
    to the two operands and the storing of the result.
    Divide time includes loan dividend. Multiply uses
    table look-up in core storage.
    Timing              Synchronous
    Some devices are asynchronous
    Operation
     Sequential         (Instruction execution)
     Concurrent         (I/0 read/write)

    INPUT
    Medium                Speed Remarks
    Paper Tape          150 chars/sec (8 channel)
    Typewriter           Manual (Alphanumeric)
    Cards               250 cards/min (Buffered)


    OUTPUT
        Medium
     Paper Tape            15 chars/sec (8 channel)
     Typewriter            15.5 chars/sec (Alphanumeric)
     Cards                125 cards/min (Buffered)
     Line Printer         150 or 240 (Buffered)
                                lines/min

    STORAGE
                                       No. of            Access
     Medium           Format           Characters        Microsec
    Core          Variable field      20,000 - 60,000      10
    Disk          20,000 100 dig.     2,000,000 to        250 (aver)
                  records             8,000,000           400 (max)
    Disk packs are removable and interchangeable giving 
      unlimited storage ability.

    CHECKING FEATURES
    Checking features include parity check on input, 
    output and internal manipulation of data.

    POWER, SPACE, WEIGHT, AND SITE PREPARATION
    Requirements vary widely, depending on system configuration.

    COST, PRICE AND RENTAL RATES
    $74,500 and up depending on system configuration. 
    $1,600 and up, depending on system configuration.

    PERSONNEL REQUIREMENTS
    Training made available by the manufacturer to the 
       user includes instruction on programming systems.

    RELIABILITY, OPERATING EXPERIENCE
    The electronic elements for system are tested, the 
    completed system is tested under quality control
    procedures before shipment, and the system is tested 
    after installation and periodically thereafter to
    assure maximum reliability.

    ADDITIONAL FEATURES AND REMARKS
    Outstanding features include variable length data 
    field, immediate operations, indirect addressing,
    alphanumeric or numeric data handling. The system 
    is compatible with the IBM 1620 Model 1, giving up
    to four times improvement of internal computer speed. 
    Improvement varies with program depending
    on the instruction mix.

    


BRL 1964, IBM 1710, starting page 0156
 
    

    IBM 1710
    IBM 1710 Control Control System

    MANUFACTURER
    International Business Machines Corporation.

    
    Photo by IBM

    APPLICATIONS
    On line, real-time system used in control of 
    processes such as petroleum (crude distillation., catalytic
    cracker, etc.) chemical processes (ammonia, plastics, 
    cement, paper, steel, used in testing and
    manufacturing control applications in electronic 
    components, vehicle testing, discrete manufacturing of
    equipment e.g. automotive parts, and used ire research 
    applications in government, hospitals, and
    universities.

    PROGRAMMING AND NUMERICAL SYSTEM
    Internal number system       Binary coded decimal
    Decimal digits/word          Variable word length
    Decimal digits/instruction.  12
    Instructions/word             1
    Instructions decoded         50
    (IBM 1620 - type of IBM 1710
    Arithmetic system            Fixed point,
     Floating point is a special feature.
    Instruction type             Two-address
    Number range                10 +- 99 floating point characteristic
    Instruction word format
    +-------------+---------+--------------+
    | 1         2 | 3     4 | 5         12 |
    +-------------+---------+--------------+
    | 0 Operation | Data    | Data Address |
    |             | Address | or not used  |
    +-------------+---------+--------------+
    The eighth digit is used a.: operation, modifier in
    some cases where the 8th through 12th digits are not
    used as the Data Address.
     Automatic built-in subroutines include variable
    length floating point arithmetic.
    Automatic coding
     FORTRAN, Executive Program, SPS

BRL 1964, IBM 1710, starting page 0157
 
    Register ten: and B-Boxes
    Index Registers are included when an IBM 1620-type 
    of IBM 1710 System is used.

    ARITHMETIC UNIT
                 Incl. Stor. Access 
                 Microsec
    Add            215 (10 digit average)
    Mult         4,260 (10 digit average)
    Div         11,170 (10 digit average)
    Arithmetic mode        Serial
    Timing                 Asynchronous
    Operation              Sequential, with interrupt
    The IBM 1620-type of IBM 1710 is a two-address 
    system for the location of two operands and the location.
    of the results.

    STORAGE
     Medium            No. of Characters      Access Microsec
    Core               20,000 - 80,000             20
    Disk Storage    2,000,000                 250,000 (avg)
                                              400,000 (max)
    Disk packs are removable and interchangeable, giving unlimited storage.

    INPUT
    Medium                Speed               Remarks
    Cards                 250 cards/min       Buffered
    Paper Tape            150 chars/min       8 channel
    Manual Entry           Manual
       Both decimal and sense switches which are process
    operator oriented.
    Typewriter             Manual             Alphanumeric
       Process inputs accepted are analog, digital,
       contact sense, pulse, pulse duration, and interrupts.

    OUTPUT
    Medium                 Speed
    Cards                  125 cards/min       Buffered
    Paper Tape              15 chars/sec       8 channel
    Printer                150 - 250 lines/min Buffered
    Typewriter              15 chars/sec       Alphanumeric
    Digital Display                            Process-operator
                                               oriented
    Process outputs are analog set-point positioning, 
     and contact-operate type.

    CHECKING FEATURES
    Paritv check on input and internal transfers.
    
    POWER, SPACE, WEIGHT, AND SITE PREPARATION
    Requirements vary widely, depending on system configuration.

    COST, PRICE AND RENTAL RATES
    $150,000 and up, depending ors system configuration. 
    $  3,500 and up, depending or system configuration.

    PERSONNEL REQUIREMENTS
    Training made available by the manufacturer to the 
    user includes instruction on programming systems.

    RELIABILITY, OPERATING EXPERIENCE
    The electronic elements for the system are tested, 
    the completed system is tested under quality control
    procedures before shipment, and the system is tested 
    after installation and periodically thereafter to
    assure maximum reliability.

    ADDITIONAL FEATURES AND REMARKS
    System is modular in construction and capable of 
    expansion from small data acquisition- system to large
    closed loop system.



BRL 1964, IBM 6400, starting page 0158
 

    IBM 6400
    Accounting Machine

    MANUFACTURER
    Electric typewriter Division, IBM

    
    Photo by IBM

    APPLICATIONS
    The IBM 6400 is an operator oriented, general purpose 
    accounting/computing machine. It is designed to
    handle a wide variety of accounting applications, 
    ranging from complete accounting systems in small
    and medium size businesses to specialized magnetic 
    ledger card applications in large business
    organizations, e.g. mortgage loan accounting, 
    installment loan accounting, hospital patient billing and
    brokerage confirmation preparation.

    Many applications can be tied together into one 
    accounting system, such as billing with automatic
    updating and control of Accounts Receivable and 
    Inventory records, plus sales analysis distribution.

    PROGRAMMING AND NUMERICAL SYSTEM
    Internal number system             Binary
    Binary digits/word                 36
    Arithmetic system                  Fixed point
    Instruction type                   Two address
    Automatic built-in subroutines
    Subroutines may be programmed and automatically 
       activated, e.g.:
       Automatic new magnetic ledger card generation
       Alternate pricing routines
       Continuous form overflow preparation 
       Automatic coding
       Encoding from decimal to binary and from binary 
         to decimal.

BRL 1964, IBM 6400, starting page 0158
 

    Registers and B-Boxes
        Maximum of eight 36-bit-core registers.
        Control panel program
        Control panel wiring normally addresses two words 
          of memory to use plus the function and the next
          address.

    ARITHMETIC UNIT
                Incl. Stor. Access  Microsec
    Add          4,320
    mult       296,000
    Div        296,000
    Construction (Arithmetic unit only)
    Vacuum-Tubes          0
    Transistors       1,048 (Aver. mach. configuration)
    Diodes              488 (Aver. mach. configuration)
     Magnetic Cores   2,952 (Maximum)
    Arithmetic mode      Serial
    Timing               Synchronous
    Operation            Sequential

    STORAGE
                              No. of       No. of
    Medium                    Words        Bits/Word
    Magnetic Core (Main)        40          36
    Magnetic Core (Ledger)
    There are 48 characters of special alphabetic storage 
    for storing constant alphabetic information for type
    out. The 48 characters may be divided into four words 
    of variable field length. Functions such as space,
    tab and carrier return may be stored also. The magnetic 
    ledger stripe itself can consist of as many as 252
    alpha numeric characters. The ratio of numeric digits 
    to alpha characters is 10 to 6. For every 10-digit
    numeric word used, only 6 alpha characters are used. 
    The maximum numeric word usage is fifteen 10-digit 
    words. Therefore, the memory may consist of all alpha 
    storage consisting of nine variable length
    words or up to fifteen 10-digit numeric words and 
    still retain 102 alphabetic characters.
       192 total alpha 
      - 90 (15 x 6) to provide   150 numeric digits
      ------------------------------------------
       102 Alpha characters      150 numeric digits
                      Total      252 alpha numeric digits

    INPUT
    Medium                   Speed
    Numeric Keyboard        12 chars/sec (max)
    Typewriter Keyboard     15 chars/sec (ma x)
    Magnetic Ledger Card   252 chars in approx 0.5 sec
    IBM Punched Cards       17 columns/sec (max)
    Entire stripe read to core memory by sweep of a 
    magnetic read head in approximately 0.5 sec.

    OUTPUT
     Medium                  Speed
     Primary Printer        15 chars/sec
       (220 positions)
    Magnetic Ledger Printer 15 chars/sec
       (130 positions)
    Magnetic Ledger Card   252 chars in approx 0.5 sec
    IBM Punched Cards           Approx 15 columns/sec
    Punching from automatic printer output at 15 columns/second.
    Punching from memory output at approximately 16 columns/second.

    CHECKING FEATURES
    Read magnetic stripe by parity check and 
    character count.
    Record magnetic stripe same as read plus a 
    bit-by-bit direct compare with core memory.
    Other programmable features permit additional 
    checking, e.g. zero balance test, negative balance test,
    branching selectors, and format control checking.

    POWER, SPACE, WEIGHT, AND SITE PREPARATION
    Power, computer (max.)          1.0 Kw 1.4 KVA 0.7 pf

    Computer       Volume       Area          Room Size
    Model          Occupied     Occupied      Required
    6410            30.2 cu ft     77 sq ft     102"x83" min. 63
    6420            45.4 cu ft     86 sq ft     102"x118" min. 58
    6410 & 6426     43.3 cu ft     89 sq ft     152"x108" min-55
    6420 & 6426     58.4 cu ft     98 sq ft     152"x118" min-54
    Weight, computer
     model 6410    750 lbs
           6420  + 250 lbs
           6426  + 250 lbs = 1,250 lbs max.

    Electrical.requirement: Wattage:
     115 volts (+ 10%)             Model        Watts
     Single Phase 3 - wire         6410          550
     60 Cycle AC (+ 1/2 cycle)     6420-6425     630
     15 Service amperes            6410-6426     820
                                6420-6425-6426   900
    Provide normal working environment. Optimum 
    temperature 50 F to 85 F. Optimum humidity 30 - 65%.
    Provide similar storage area for ledger cards. 
    Provide adequate floor strength for weights noted above.

    COST, PRICE AND RENTAL RATES
                                Monthly   Purchase  Annual
    Model   Description         Rental    Price     Maint.
    6410    Accounting Machine   $495     $23,600    $825
    6420    Magnetic Ledger
            Accounting Mach.      520      24,300     855
    6425    Magnetic Ledger
             Unit                 175       8,300     480
    6424    Card Punch             90       4,075     340
    6426    Printing Card Punch   115       5,175     380
     The 6420 and 6425 operate together.

    PERSONNEL REQUIREMENTS
    Training made available by the manufacturer to the 
    user includes instruction on programming systems.

    RELIABILITY, OPERATING EXPERIENCE
    The electronic elements for the system are tested,
    the completed system is tested under quality control
    procedures before shipment, and the system is tested 
    after installation and periodically thereafter to
    assure maximum reliability.

    ADDITIONAL FEATURES AND REMARKS
    Alphabetic and numeric storage on Magnetic Ledger Card.
    Special Alphabetic Storage Format Control of Printing 
    and Routines Unique Automatic Paper Handling
    Full arithmetic ability (add, subtract, multiply, 
       and divide) at computer speeds.
    Combines several applications in one system operation. 
    Eliminates separate addressing operations
    because of alpha storage. Unlimited distribution 
    through card output. Automatic by-product
    management reports.



BRL 1964, IBM 7010, starting page 0160
 

    IBM 7010
    IBM 7010 Data Processing System

    MANUFACTURER
    International Business Machines Corporation

    
    Photo by IBM Corp., Data Processing Division

    APPLICATIONS
    General purpose computing with provisions for 
         on line, real time applications.

    PROGRAMMING AND NUMERICAL SYSTEM
    Internal number system        Binary coded decimal
    Decimal digits/word           Variable
    Decimal digits/instruction    Variable 1 to 12
    Instructions word              1
    Instructions decoded          32 instructions
                                  64 instruction modifiers
    Arithmetic system             Fixed & floating point
    Instruction type              Variable
    Number range                  Floating point -
                                   17 digit mantissa
                                    2 digit exponent
    Automatic built-in subroutines includes auto printout 
       and floating point arithmetic.
    Automatic coding includes FORTRAN, COBOL, and AUTOCODER.
    Registers and B-Boxes include 15 Index Registers, 
       1 Instruction Address Register, and 8 Address Registers.
    Broad package of programs available. The IBM 1401 set 
    of instructions are used.
    The instruction word format is variable, e.g. 
     only the operation code may be given. The op Code and
    one address, the OP Code and two addresses, 
    or the op Code, two addresses and a modifier
    +------+-----------+-----------+----------+
    | 1    | 2       6 | 7      11 | 12       |
    +------+-----------+-----------+----------+
    | OP   | Address A | Address B | Modifier |
    | Code |           |           |          |
    +------+-----------+-----------+----------+
     Instruction word format
    

BRL 1964, IBM 7010, starting page 0161
 

    
    ARITHMETIC UNIT
              Incl. Stor. Access Microsec.
    Add                     22
    Construction (Arithmetic unit only)
    Transistors
    Arithmetic mode         Serial
    Parallel access, serial process
    The operation times vary by the field length and instruction lengths,
        e.g. the add time in microseconds is given by:
       1.2 (Length of Instruction + Length of A Address +3).
     + 1.6 (Length of B Address + 1) + 1.6 (Length of B Address + 1).
    (The third term is included only on recomplement, if required).
    Typically, addition might require 22 microseconds.
    Timing                  Synchronous
    Operation               Sequential
    Concurrent on Input/Output.

    STORAGE
                           No. of       Access
     Medium                Characters   Microsec
     Magnetic Cores         100,000           2.4
    Transistor Latch 1 result char 1.2 (1st char)
                     2 A chars & 0.050 (2d char)
                     2 B chars
    Magnetic Disk File    56,000,000     50,000 to 180,000
     alphanumeric
     char/file
    Magnetic tape
     No. of units that can be connected        40 Units
     No. of chars/linear inch                 800 Chars/inch
     Channels or tracks on the tape             7 Track/tape
     Blank tape separating each record          0.75 Inches
     Tape speed                               112.5 Inches/sec
     Transfer rate                         90,000 Chars/sec
     Start time                                 5 Millisec
     Stop                                       3.8 Millisec
     Average time for experienced
    operator to change reel of tape            45 Seconds
     Physical properties of tape
     Width                                      0.5 Inches
     Length of reel                         2,400 Feet
     Composition Mylar
     Magnetic tape information given applies to IBM 729 VI tape units.
     IBM 729 II, IV, V and 7330 tape units may also be used.

    INPUT
    Medium             Speed                 Remarks
    Magnetic Tape       90,000 chars/sec    (IBM 729 & 7330)
    Paper Tape             500 chars/sec    (IBM 1011)
    Teletype (Feature)
    Card Read-Punch        800 cards/min    (IBM 1402-2)
    Typewriter
    IBM 1440 System
    IBM 7750 PTC
    Magnetic Disk File

     OUTPUT
    Medium             Speed                  Remarks
    Magnetic Tape       90,000 chars/sec      (IBM 729 & 7330)
    Teletype (Feature)
    Card Read-Punch        250 cards/min      (IBM 1402-2)
    Printer              1,100 lines/min      (IBM 1403-3)
    Magnetic Disk File  90,000 chars/sec

    CHECKING FEATURES
    Fixed checking features include B data parity, 
    A data parity, assembly parity, result reg parity, address
    entry 2 out of 5 parity, address modify parity, 
    load-regenerate memory check, instruction length check,
    validity of instruction check, restore status check,
    cycle look-ahead check, clocking check, character
    selection check, memory address-regenerate check,
    2-character I/0 data check, and fail safe data paths
    are used.

    Optional checks include a memory-protect check and 
    a program error check. The checks are possible of
    auto branches to a specified area if the memory 
    protect-program relocate feature is utilized.

    POWER, SPACE, WEIGHT, AND SITE PREPARATION
    Requirements vary widely, depending on system configuration.

    COST. PRICE AND RENTAL RATES
    The price of the basic system is $1,307,550 and up,
    depending on system configuration.
    The monthly rental is $27,570 and up 
    depending on system configuration.

    PERSONNEL REQUIREMENTS
    Training made available by the manufacturer to the user 
     includes instruction on programming systems.

    RELIABILITY. OPERATING EXPERIENCE
    The electronic elements for the system are tested, 
    and the completed system is tested under quality
    control procedures before shipment; and the system 
    is tested after installation and periodically thereafter
    to assure maximum reliability.

    ADDITIONAL FEATURES AND REMARKS
    The system will operate IBM 1410 and IBM 1401 programs
    without alteration. Modularity provides means to
    cover a wide range of applications and work load. System 
    advantages include automatic card-tape load function, 
    a fail safe design, 4 input/output data channels, 
    each capable of overlap and/or unoverlap.

    A wide range of input/output equipment optional 
    and special features, compatibility with the IBM 1401
    and 1410 Systems, and overlapped instruction execution.



BRL 1964, IBM 7040, starting page 0162
 

    IBM 7040

    MANUFACTURER
    International Business Machines Corporation

    
    Photo by IBM Corp., Data Processing Division

    APPLICATIONS
    General purpose data processing. Scientific computing 
    Real time and multi computer capabilities available.

    PROGRAMMING AND NUMERICAL SYSTEM
    Internal number system      Binary
    Binary digits/word          36
    Binary digits/instruction   36
    Instructions/word            1
    Instructions decoded       120
    Arithmetic system           Fixed and floating point
    Floating point - single and double precision available.
     Fixed point - standard
    Instruction type            One address
    Number range (fixed point) 11 dec digits/word
     (floating point) 10 ± 38 (approx.)
    Instruction word format
     +-----------+-------+-------+---------+
     | S,1    11 | 12 17 | 18 20 | 21   35 |
     +-----------+-------+-------+---------+
     | Operation | Count | Tag   | Address |
     +-----------+-------+-------+---------+
    S = Sign bit position

    Automatic coding  
      COBOL  
      MACRO Assembly  
      FORTRAN 
    Registers and B-Boxes  
      3 Index Registers 
      Instruction Register  
      Accumulator  
      MQ Register  
      Storage Register  
      Address Register

BRL 1964, IBM 7040, starting page 0162
 
    Optional features include an internal timer, 
    a memory protect, and extended performance features.

    ARITHMETIC UNIT
                  Incl. Stor. Access   Excl. Stor. Access
                  Microsec             Microsec
    Add              16                   0.888
    Mult             40
    Div              54
    Construction (Arithmetic unit only)
    Vacuum-Tubes            0
    Transistors         6,069
    Condenser-Diodes   16,034
    Magnetic-Cores  1,212,416(in a 32,768-word
                               storage unit)
    Solid state components are used throughout.
    Arithmetic mode             Parallel
    Timing Synchronous & Asynchronous Operation Sequential - Concurrent I/0

    STORAGE
                        No. of   No. of          Access
     Medium             Words    Characters      Microsec
     Magnetic Core     32,768                        4.0
    Magnetic Disk File           28,000,000/    17,000 to
                                 module        200,000
    Magnetic Tape
    No. of units that can be connected        50 Units
    No. of chars/linear inch                 800 Chars/inch
    Channels or tracks on the tape             7 Track/tape
    Blank tape separating each record          0.75 Inches
    Tape speed                                37.5 - 112.5 Inches/sec
    Transfer rate                          7,500 - 90,000 Chars/sec
    Start time                                 4.5 - 20 Millisec
     Stop time                                 4.0 - 8 Millisec
     Average time for experienced
    operator to change reel of tape           60 Seconds
     Physical properties of tape
     Width                                     0.5 Inches
     Length of reel                        2,400 Feet
     Composition Oxide coated                mylar
     Specifications cover the IBM 7330, 72911, IV, V, VI Tape Units.

     INPUT
     Medium        Speed             Remarks
    Cards           800 cards/min   (Col. Binary or Hollerith)
    Paper Tape      500 chars/sec   (5 to 8 channel, only 6 infor.)
    Magnetic Tape
    Communication Lines             (All commercially avail.)

    OUTPUT
    Medium         Speed              Remarks
    Cards           250 cards/min   (Hollerith or col. binary)
    Magnetic Tape
    Communication Lines             (All commercially avail.)
    Typewriter       15 chars/sec
    Line Printer    600 lines/min (Carriage controlled)

    CHECKING FEATURES
    Fixed checking features include word parity for 
    memory and input/output transfers. All input/output data
    has character parity with hole counts on cards.

    POWER, SPACE, WEIGHT, AND SITE PREPARATION
    Requirements vary widely, depending on system configuration.

    COST, PRICE AND RENTAL RATES
    $1,882,700 depending on system configuration. 
    $29,350 monthly rental, depending on system configuration.

    PERSONNEL REQUIREMENTS
    Training made available by the manufacturer to the user 
    includes instruction on programming systems.

    RELIABILITY, OPERATING EXPERIENCE
    Electronic elements for the system are tested, 
    the completed system is tested under quality control
    procedures before shipment and the system is tested 
    after installation and periodically thereafter to
    assure maximum reliability.

    ADDITIONAL FEATURES AND REMARKS
    Outstanding features include modularity to cover a 
    wide range of applications and work load with
    complete compatibility.

    Growth upward to the IBM 7044 System.
    Wide range of memory sizes, instruction sets 
      and I/0 equipment available.
    Instruction set and I/0 equipment identical with 7044.
    Member of the IBM 704-709-7090-7094 family.

    


BRL 1964, IBM 7044, starting page 0164
 


    I B M 7044

    MANUFACTURER
    International Business Machines Corporation

    

    Photo by IBM Corp., Data Processing Division

    APPLICATIONS
    General purpose data processing. Scientific computing 
    Real time and multi-computer capabilities available.

    PROGRAMMING AND NUMERICAL SYSTEM
    Internal number system       Binary
    Binary digits/word           36
    Binary digits/instruction    36
    Instructions/word             1
    Instructions decoded        120
    Arithmetic system Fixed and floating point
    Floating point is available in single and double precision.
     Fixed point is standard equipment.
    Instruction type             One address
    Number range
     Fixed point:                11 decimal digits/word
    Floating point:       approx 10 ± 38
    Instruction word format
     +-----------+-------+-------+---------+
     | S,1    11 | 12 17 | 18 20 | 21   35 |
     +-----------+-------+-------+---------+
     | Operation | Count | Tag   | Address |
     +-----------+-------+-------+---------+
    S = Sign bit position

    Automatic coding  
      COBOL  
      MACRO Assembly  
      FORTRAN 
    Registers and B-Boxes  
      3 Index Registers 
      Instruction Register  
      Accumulator  
      MQ Register  
      Storage Register  
      Address Register
     Optional features include an interval timer, 
     a memory protect device and extended performance characteristics.

BRL 1964, IBM 7044, starting page 0165
 

    ARITHMETIC UNIT
            Incl. Stor. Access     Excl. Stor. Access
            Microsec               Microsec
     Add       5                     0.833
     Mult     30
     Div      50
     Construction (Arithmetic unit only)
     Vacuum-Tubes                0
     Transistors             6,042
    ` Condenser-Diodes      17,206
     Magnetic-Cores      1,212,416 in a 32,000 word
                                storage unit
    Solid state components are used throughout.
    Arithmetic mode           Parallel
     Timing Synchronous - Asynchronous
     (Combination for maximum performance.)
    Operation Sequential - Concurrent I/0

    STORAGE
                        No. of      No. of       Access
     Medium             Words       Characters   Microsec
    Magnetic Core       32,768                         1.25
    Magnetic Disk File              28,000,000/   17,000 to
                                    modules      200,000
    Up to 10 modules of disk files are possible.
    Magnetic tape
     No. of units that can be connected     50 Units
     No. of chars/linear inch              800 Chars/inch
     Channels or tracks on the tape          7 Track/tape
     Blank tape separating each record       0.75 Inches
     Tape speed                             37.5 - 112.5 Inches/sec
     Transfer rate                       7,500 - 90,000 Chars/sec
     Start time                              4.5 - 20 Millisec
     Stop time                               4.0 - 10 Millisec
     Average time for experienced
    operator to change reel of tape         60 Seconds
     Physical properties of tape
     Width                                   0.5 Inches
     Length of reel                      2,400 Feet
     Composition Oxide coated               mylar
    Specifications cover IBM 7330's, 729 II, IV, V,
     VI Tape Units.

     INPUT
     Medium             Speed              Remarks
    Cards            800 cards/min       (Hollerith or
                                           column bin.)
    Paper Tape       500 chars/sec        (5, 6, 7, 8
                                           channel tape
                                           6 inform)
    Magnetic Tape
    Communication Lines                    (All commercially available)

    OUTPUT
    Medium              Speed Remarks
    Cards            250 cards/min         (Hollerith or
                                             column bin.)
    Magnetic Tape
    Communication Lines                    (All commercially available.)
    Typewriter        15 chars/sec
    Line Printer    600 lines/min

    CHECKING FEATURES
    There is word parity in internal storage. All I/0 
    devices are checked with a parity bit in each character.
    Dual gap tape heads, hole count checks on cards, 
    and a cycle burst check on the disk file are included.

    POWER, SPACE, WEIGHT, AND SITE PREPARATION
    Requirements vary widely, depending on system configuration.

    COST, PRICE AND RENTAL RATES
    $1,400,000, depending on system configuration.
   $21,850, depending on system configuration

    PERSONNEL REQUIREMENTS
    Training made available by the manufacturer to the 
    user includes instruction on programming systems.

    RELIABILITY. OPERATING EXPERIENCE
    The electronic elements for system are tested, the
    completed system is tested under quality control
    procedures before shipment and the system is tested
    after installation and periodically thereafter to
    assure maximum reliability.

    ADDITIONAL FEATURES AND REMARKS
    Outstanding features include modularity to cover
    a wide range of applications and work loads with
    complete compatibility and an easy upward growth
    from an IBM 7040 system with expandability to an
    IBM 7090 or IBM 7094 System.
    Wide range of modular instruction sets, memory 
    sizes and input/output equipment available.
    Instruction set and I/0 equipment identical with IBM 7040.
    A member of the IBM 704-709-7090-7094 family.



BRL 1964, IBM 7072, starting page 0166
 

    IBM 7072

    IBM 7072 Data Processing System
    MANUFACTURER
    International Business Machines Corporation


    
    Photo by IBM

    APPLICATIONS
    General purpose but primarily scientifically oriented.

    PROGRAMMING AND NUMERICAL SYSTEM
    Internal number system       Decimal
    Decimal digits/word          10
    Decimal digits/instruction   10
    Instructions/word             1
    Instructions decoded        160 (with augmentation)
    Arithmetic system            Floating & fixed point
    Instruction type             One address (modified)
    Number range
    Fixed point: Up to 10 decimal digits
    Floating point: Exponent range of 100 
    Instruction word format
    +------+-------+----------+---------------+---------------+
    | +    |  1    | 2     3  | 4           5 | 6           9 |
    +------+-------+----------+---------------+---------------+
    | Sign | OP    | Index    | FLD Def.      | Address       |
    |      | Code  | Register | Index Address | Register      |
    |      |       |          | Augmentation  |Branch Address |
    +------+-------+----------+---------------+---------------+
    Automatic built-in subroutines.
    A housekeeping automatic built-in subroutine upon 
    entering interrupt, includes the store of instructions
    counter and condition latches.

    Registers and B-Boxes  
      3 Accumulators  
      1 Arithmetic Control Register  
      1 Auxiliary Control Register
    Up to 99 words of core storage can be used for indexing registers.

    ARITHMETIC UNIT
               Incl. Stor. Access      Excl. Stor. Access
               Microsec Microsec
    Add            12
    Mutt           40.2 (6x3) & (6/3)          28.2
                         digits
    Div            64.4 (6x3) & (6/3)          52.4
                         digits
    Construction (Arithmetic unit only)
    Transistors
    Arithmetic mode         Parallel
    Timing                  Asynchronous
    Operation               Concurrent

    STORAGE
                    No. of        No. of     Access
    Medium          Words        Digits      Microsec
    Magnetic Core   5,000 to    50,000 to       6
                   30,000      300,000
    Magnetic Tape
     No. of units that can be connected        20 Units
     No. of chars/linear inch                 556 Chars/inch
     Channels or tracks on the tape             7 Track/tape
     Blank tape separating each record          0.75 Inches
     Tape speed                                36 Inches/sec
     Transfer rate                         20,000 Chars/sec
     Start time (write)                         7.2 Millisec
     Stop time (write)                          4.4 Millisec
     Average time for experienced
    operator to change reel of tape            60 Seconds
BRL 1964, IBM 7072, starting page 0167
 
    
    Photo by IBM

    Physical properties of tape
     Width                     0.5 Inches
    Length of reel         2,400 Feet
    Composition               Mylar backed

    INPUT
     Medium                 Speed
    Serial Card Reader       60 cards/min
    Magnetic Tape         7,000 chars/sec
    Magnetic Tape        20,000 chars/sec

     OUTPUT
     Medium                 Speed
    Typewriter               10 chars/sec
    Magnetic Tape         7,000 chars/sec
    Magnetic Tape        20,000  chars/sec

    CHECKING FEATURES
    The central processor has a fixed count two-out-of-five code,
    an input/output parity check and control checking features.

    POWER, SPACE, WEIGHT, AND SITE PREPARATION
    Requirements vary widely, depending on system configuration.

    COST, PRICE AND RENTAL RATES
    $647,17u and up, depending on system configuration. 
     $14,450 and up, depending on system configuration.

    PERSONNEL REQUIREMENTS
    Training made available by the manufacturer to the 
    user includes instruction on programming systems.

    RELIABILITY, OPERATING EXPERIENCE
    Electronic elements for the system are tested, 
    the completed system is tested under quality control
    procedures before shipment and the system is tested
    after installation and periodically thereafter to
    assure maximum reliability.

    ADDITIONAL FEATURES AND REMARKS
    There is complete program compatibility with the IBM 7070 
    and the IBM T074 Data Processing Systems. The
    computing speeds are 8-15 times faster than the IBM 7070 systems.



BRL 1964, IBM 7094 II, starting page 0168
 


    IBM 7094 II

    MANUFACTURER
    International Business Machines Corporation

   
    Photo by IBM

    APPLICATIONS
    General purpose data processing Scientific computing 
    Real time data processing Multi-computer
    network capabilities Tele-processing capabilities

    PROGRAMMING AND NUMERICAL SYSTEM
    Internal number system         Binary
    Binary digits/word             36
    Binary digits/instruction      36
    Instructions/word               1
    Instructions decoded          264
    Arithmetic system              Fixed and floating point
    Single and double precision standard floating point 
       and standard fixed point.
    Instruction type               One address
    Number range
     Fixed point                   11 decimal digits/word
     Floating point           8 or 16 decimal digits in 10±38
    Several formats are used: 
    A typical format is:
    +-----------+-------+-------+-------+---------+
    | S, 1   11 | 12 13 | 14 17 | 18 20 | 21   35 |
    +-----------+-------+-------+-------+---------+
    | Operation | I/A   | Count | Tag   | Address |
    +-----------+-------+-------+-------+---------+

    

BRL 1964, IBM 7094 II, starting page 0169
 


    Automatic coding.
     FORTRAN
     COBOL
     COMTRAN
     9 PAC
    Registers and B-Boxes
     7 Index Registers       Instruction Counter
     Accumulator             Instruction Register
     MQ Register             Sense Indicator Register
     Storage Register        Instruction Backup Register
     Address Register

    ARITHMETIC UNIT
                Incl. Stor. Access     Excl. Stor. Access
                Microsec               Microsec
               Floating   Fixed        Floating      Fixed
               Point      Point        Point         Point
    Add        2 - 6     1.4 -  4.2      0.333        0.175
    Mult       8 - 12    4.2 -  7.0
    Div       14 - 18    8.4 - 11.2
    Construction (Arithmetic unit only)
     All solid state components
    Arithmetic mode            Parallel
    Timing Synchronous and Asynchronous
    Operation Sequential and Concurrent I/0

     STORAGE
                   No. of         No. of Digits     Access
     Medium        Words          Alphanumeric      Microsec
    Magnetic Core    32,768                          1.05
    Magnetic Disk File           56,000,000     50,000 to
                                 chars/file    180,000
    Drum Storage                  1,118,400      8,600
                                 chars/drum       (average)
    Magnetic Tape
    No. of units that can be connected       80 Units
    No. of chars/linear inch              1,511 Chars/inch
    Channels or tracks on the tape           10 Track/tape
    Blank tape separating each record         0.45 Inches
     Tape speed                             112.5 Inches/sec
     Transfer rate                      170,000 Chars/sec
     Start time                               3 Millisec
     Stop time                                3 Millisec
     Average time for experienced
    operator to change reel of tape          30 Seconds
     Physical properties of tape
     Width                                    1 Inch
     Length of reel                       1,800 Feet
    Composition                       Oxide coated mylar
     Magnetic Tape information given applies to IBM 7340
     Hypertape units. IBM 729 II, IV, V, VI tape units may
    also be used on IBM 7094 system.

    INPUT
     Medium                 Speed             Remarks
     Cards (IBM 711)         250 cards/min
    Magnetic Tape (,IBM 729 & 7340)

    OUTPUT
    Medium Speed
    Cards (IBM 721)          100 cards/min
    Magnetic Tape
     (IBM 729 & 7340)
    Printer (IBM 716)        120 chars/line
                             150 lines/min

    CHECKING FEATURES
    Fixed checking features include cnaracter and record parity on tape.

    POWER, SPACE. WEIGHT, AND SITE PREPARATION
    Requirements vary widely, depending on system configuration.

    COST, PRICE AND RENTAL RATES
    Basic System: $3,018,000 and up depending on system configuration.
    Monthly rental: $69,550 and up depending on system configuration.

    PERSONNEL REQUIREMENTS
    Training made available by the manufacturer to the user
    includes instruction on programming systems as
    required by the user.

    RELIABILITY. OPERATING EXPERIENCE
    Electronic elements for system are tested; completed 
    system is tested under quality control procedures
    before shipment; system is tested after installation 
    and periodically thereafter to assure maximum reliability.

    ADDITIONAL FEATURES AND REMARKS
    Outstanding features include modularity which provides
    means to cover a wide range of applications and work load.
    System advantages include upward compatibility from IBM 704, 
    709, 7040, 7044 and 7090 and 7094 systems.

    Wide range of I/0 equipment, optional and special features available.
    Overlapped instruction execution.
    Broad packaged programmin support available.
    Strong user organization SHARE).



BRL 1964, ILLIAC II, starting page 0170
 


    ILLIAC II

    MANUFACTURER
    University of Illinois

   
    Photo by the University of Illinois

    APPLICATIONS
    Scientific, general purpose computing.

    PROGRAMMING AND NUMERICAL SYSTEM
    Internal number system         Binary
    Binary digits/word             52
    Binary digits/instruction      13 or 26
    Instructions/word               2, 2-1/2, 3, 3-1/2 or 4
    Instructions decoded           76
    Arithmetic system              Floating point
    Instruction type                1 or 2 address
    Number range                    1 x 4±64
    +------+-------+----------+----------------+----------+
    | Bits |  7    |    4     |      2         |   13     |
    +------+-------+----------+----------------+----------+
    |      | Order | Modifier | Address        | Address, |
    |      |       |          | Interpretation | if used  |
    +------+-------+----------+----------------+----------+
    

BRL 1964, ILLIAC II, starting page 0171
 
    Automatic coding.
      ALGOL  
      Assembler called NICAP 
    Registers and B-Boxes  
       16 Modifiers (B boxes) 
       13 Accessible Temporary Storage and Arithmetic  Registers

    ARITHMETIC UNIT
           Incl. Stor. Access     Excl. Stor. Access
           Microsec               Microsec
    Add       2.5                   2.5 (normally overlapped)
    Mult      6.6                   6.6 (normally overlapped)
    Div      18                    18 (normally overlapped)
    Construction (Arithmetic unit only)
      Transistors            25,000 (GF 45011)
      Diodes                 60,000 (S577G) 
    Arithmetic mode          Parallel
    The Illiac II works problems four to six times faster than IBM 7090.
    Timing Asynchronous Operation Concurrent

    STORAGE
                No. of    No. of         Access
     Medium     Words     Bits/Words     Microsec
    Core         4,096      53              0.6 (Access time)
                                            1.6 (Cycle time)
    Core         4,096      53              1.8 (Cycle time)
    Drum        65,536      53              7.5 (Word time
    Disc    10,000,000     53              20   (Word time
    Magnetic Tape
     No. of units that can be connected    40 Units
     No. of chars/linear inch             800 Chars/inch
     Channels or tracks on the tape         7 Track/tape
     Blank tape separating each record      0.75 Inches
    Tape speed                            112.5 Inches/sec
    Physical properties of tape
     Width                                  0.5 Inches
     Length of reel                     2,400 Feet
     Composition                            Mylar

    INPUT
    Medium             Speed
    Paper Tape          1,000 chars/sec (8 level)
    IBM 1401 Computer     800 cards/min

    OUTPUT
    Medium             Speed
    Paper Tape            110 chars/sec (8 level)
    IBM 1401 Computer     600 lines min
                          250 cards/min

    CIRCUIT ELEMENTS OF ENTIRE SYSTEM
     Type            Quantity 
    Diodes           100,000
    Transistors       45,000
    Magnetic Cores   600,000

    CHECKING FEATURES
    Interrupt features. Memory protection Power supply deviation checked.

    POWER, SPACE, WEIGHT, AND SITE PREPARATION
    Power, computer         50 Kw
    Volume, computer     1,900 cu ft
    Air conditioner         20 tons
    Site preparation requirements
    The system is bolted to both the floor and the ceiling.

    PRODUCTION RECORD
    Number produced to date        1
    Number in current operation    1

    COST, PRICE AND RENTAL RATES
    Cost of system         $4,000,000

    PERSONNEL REQUIREMENTS
    Supervisors    4
    Analysts       2
    Programmers   10
    Coders         1
    Operators      2
    Engineers      2

    ADDITIONAL FEATURES AND REMARKS
    Outstanding features include a highly parallel 
    structure, overlapped arithmetic, indexing, input output
    and core access. There are three separate controls:
       Advanced (Lookahead)
       Delayed (Arithmetic)
       Interplay (Input/Output on 32 time-shared channels)
    Unique system advantages. The systems' asynchronism 
    serves as an aid to trouble-shooting. The complex
    structure makes program time the only meaningful 
    measure of speed, e.g., a matrix multiplication inner
    loop requires 18 microsec sec using double precision. 
    A Mersenne prime check on 211,191 - 1 is done in 45
    minutes.

    The Digital Computer Laboratory of the University of 
    Illinois completed the construction and testing of the
    central and high-speed parts. This high-speed portion 
    is of particular interest in scientific research because
    its speed extends the range of problems which can be solved. 

    One research problem in physics,
    considered to be representative of many, indicated that 
    the new machine was about 100 times as fast
    as the University's earlier machine, the ILLIAC. 
    Machine speed comparisons are at best approximate
    because in new machines the overlapping of some 
    operations is of more advantage on some problems
    than on others and also because there are many 
    ways in which the overlapping can be done. The new
    machine now requires auxiliary memories and connection 
    to IBM input-output equipment in order to be
    of use to many research people. This work is now in progress.

    Some instruction times for the machine are:
      Addition (no normalization) 2.5 microsec
      Floating-point multiplication 6.6 microsec
      Average floating-point division 15.5 microsec
      Average index order 1.4 microsec
      Memory cycle 1.8 microsec
      Memory access 0.6 microsec
    These times do not include instruction or operand 
    accessing times because the machine has a separate
    control, the purpose of which is to obtain operands 
    and instructions for the arithmetic unit.



BRL 1964, ITT 525 VADE, starting page 0172
 

    ITT 525 VADE
    Versatile Auto Data Exchange

    MANUFACTURER
    ITT Federal Laboratories


   
    Photo by the ITT Federal Laboratories

    APPLICATIONS
    The system is designed for on-line and real 
    time applications, with many input lines, storage and
    forwarding switching center. A unique machine 
    organization makes optimum use of high-speed circuits
    and high-speed memory to reduce cost while maintaining 
     very high thruput. The system utilizes the stored
    logic concept.

    PROGRAMMING AND NUMERICAL SYSTEM
    Internal number system     Binary
    Binary digits/word        33
    Binary digits/instruction 32 plus parity
    Instructions/word          1
    Instructions decoded      64 maximum
    Arithmetic system         Fixed point
     One's complement arithmetic is performed.
    Instruction type 3       One address
    Number range          - (231 -1) to + (231 -1)
    +-------+-------+-----------+-------+---------+---------+
    |   0   |   1   | 2       7 | 8  13 | 14 29   | 30   31 |
    +-------+-------+-----------+-------+---------+---------+
    | Char. | Index | Senseable | Oper- | Word    | Char.   |
    | Mode  |       | Device    | ation | Address | Address |
    +-------+-------+-----------+-------+---------+---------+
    Automatic built-in subroutines. None
    Automatic coding
    A symbolic assembler is available.
    Registers and B-Boxes 
      Accumulator 
      Memory Buffer 
      Memory Address 
      Instruction Register
      Control Buffer
      Index Register
    Most instructions may be executed in word or 
    character mode (4 characters per word)
    and most instructions are indexable.

    ARITHMETIC UNIT
             Incl. Stor. Access     Excl. Stor. Access
             Microsec               Microsec
    Add         6                      0.5
    Construction (Arithmetic unit only)
     Transistors      4,000
    Arithmetic mode      Parallel
    Timing               Synchronous
    Operation            Sequential
    Three memory accesses are utilized per operation.

    STORAGE
                     No. of    No. of Binary         Access
                     Words     Digits/word           Microsec
    Magnetic Core     32,000       33                 0.75
     Smaller storage units are  available.
    Magnetic Tape
     No. of units that can be connected       8 Units
     No. of chars/linear inch               200 Chars/inch

BRL 1964, ITT 525 VADE, starting page 0173
 

    
    Photo by ITT Federal Laboratories

    Channels or tracks on the tape       7 Tracks/tape
    Blank tape separating each record    0.75 Inches
     Tape speed                         75 Inches/sec
     Transfer rate                  15,000 Chars/sec
     Start time                          3 Millisec
     Stop time                           3 Millisec
     Average time for experienced
    operator to change reel of tape     60 Seconds
     Physical properties of tape
     Width                               0.5 Inches
     Length of reel                  2,400 Feet
     Composition                       Plastic

    INPUT
    Medium
    Teletype (128)            60 to 100 words/min
    High Speed Data (32)   2,400 bits/sec
    Paper Tape               300 chars/sec
    OUTPUT
     Medium
     Teletype (128)           60 to 100 words/min
    High Speed Data (32)   2,400 bits/sec

    CIRCUIT ELEMENTS OF ENTIRE SYSTEM
    Type                Quantity
    Tubes                    0
    Diodes              36,000
    Transistors         40,000
    Magnetic Cores   1,000,000
    The number of magnetic cores is for 32,000 words of 33 bits each.

    CHECKING FEATURES
    Parity is used on memory input lines.

    POWER, SPACE, WEIGHT, AND SITE PREPARATION
    Power, Computer        31 KW 0.85 pf
    Volume, computer      450 sq ft
    Area, computer         80 sq ft
    Room size              11 x 32 ft
    Floor loading          18 lbs/sq ft
                          250 lbs concen max
    Weight, computer   10,000 lbs
    Site preparation requirements
    The room air temperature must be maintained below 80oF. 
    The room air conditioner must be capable of
    dissipating 150,000 BTU/HR above other requirements to 
    handle the heat generated by a fully expanded
    VADE system. No false floor or other special site 
    preparation requirements must be met. An air
    conditioner within the equipment is not required. 
    The above dimensions are for a fully expanded system.

    PRODUCTION RECORD
    Number in current operation       1
    Anticipated production rates      4 per year
    Time required for delivery       12 months
    Primarily a special purpose machine designed for 
    high thruput store and forward switching centers both
    teletypes and data lines.

    ADDITIONAL FEATURES AND REMARKS
    Outstanding features include the capability to handle 
    large varieties of inputs, up to 256 lines, minimum
    cost per line, achieved through the use of lice 
    internal processing speed, small size, and no special
    environmental requirements.



BRL 1964, ITT 7300 MOD II, starting page 0174
 

    ITT 7300 MOD II
    Automatic Data Exchange (ADX) System Model II

    MANUFACTURER
    ITT Information Systems Division

    
    Photo by ITT Information Systems Division

    The hardware at left is an Automatic Send-Receive 
    Device; hardware in center is the ITT 7301 MOD II
    Multiplex Message Processor; hardware on right is 
    ITT 7321 Magnetic Tape Control Unit and the ITT 7320
    Magnetic Tape Unit. The panel at the front of the 
    ITT 7301 MOD II is used by the computer programmer
    and the panel in the center is used by the 
    communications supervisor to provide status information.

    APPLICATIONS
    Applications include real-time message/data 
    switching and information processing, command and
    control, management information, air traffic 
    control, selfadaptive communications, process 
    control and simulation.

    This description pertains to the ITT 7301 MOD II 
    multiplex message processor as used in the 
    ITT 7300 ADX System.

    PROGRAMMING AND NUMERICAL SYSTEM
    Internal number system       Binary
    Binary digits/word          18
    Binary digits/instruction   18
    Instructions/word            1
    Instructions decoded       104 (expandable)
    Arithmetic system           Fixed point
    Instruction type           One address
    Number range              +131,071 to -131,071 (Decimal
    Instruction word format
    +---------+----------+-----------+---------+--------+
    | 5 Bits  | 1 Bit    | 12 Bits   | 9 Bits  | 9 Bits |
    +---------+----------+-----------+---------+--------+
    | OP Code | Indirect | Address   | OP Code | Count  |
    +---------+----------+-----------+---------+--------+
    +---------+----------+-----------+
    | 5 Bits  | 1 Bit    | 12 Bits   |
    +---------+----------+-----------+ 
    | OP Code | Negation | Modifiers |
    +---------+----------+-----------+
    Automatic built-in subroutines  
      Read-in-mode (bootstrap) 
      Parity Error Trap  
      Priority Interrupt (multi-sequence)
    Automatic coding  
      Relocatable macro-based assembler

BRL 1964, ITT 7300 MOD II, starting page 0175
 

    Registers and B-Boxes
      Accumulator          Digital Data Display Buffer
      In/Out Reg (LOPR)    Multi-sequencing Control
      Memory Address Register
      Memory Buffer        Program Counter
      Reader Buffer        Instruction Register
      Punch Buffer         Core Memory
      Keyboard Buffer      Typewriter Buffers
      Printer Buffer
    There is a one bit parity on words in storage.

    ARITHMETIC UNIT
             Incl. Stor. Access        Excl. Stor. Access
             Microsec                  Microsec
    Add        24                          3 (concurrent w/storage
                                                access)
    Mult      390
    Div       528
    Construction (Arithmetic unit only)
     Transistors       180 germanium PNP
     Diodes            270 germanium
    Arithmetic mode     Parallel
    Addition is concurrent with storage access.
    Multiplication and division is accomplished by sub
    routine using micro commands MUS and DIS.
    One's complement arithemetic is used.
    Timing              Synchronous
    Operation           Sequential on instruction,
     concurrent on Input/Output/Compute

    STORAGE
                        No. of    No of         Access
     Medium             Words     Bin/Digits    Microsec
    Magnetic Core      65,536    1,179,648          6
    Magnetic Tape   5,337,600   96,076,800        192
    Magnetic Drum      89,600    1,702,400      8,300
    Magnetic Disc   1,572,864   29,884,436     25,000
    Maximum core storage is given above.
    Capacity of tape is given for each reel.
    Magnetic Tape
     No. of units that can be connected      32 Units
     No. of chars/linear inch               556 Chars/inch
     Channels or tracks on the tape           7 Tracks/tape
     Blank tape separating each record        0.75 Inches
     Tape speed                              75 Inches/sec
     Transfer rate                           41,700 Chars/sec
     Start time                               5 Millisec
     Stop time                                5 Millisec
     Average time for experienced
       operator to change reel of tape       60 Seconds
     Physical properties of tape
     Width                                    0.5 Inches
     Length of reel                       2,400 Feet
     Composition Mylar
    Magnetic tape access time assumes access in the  
    middle of the tape (2,200 ft) from one end.
    Backward read available.

    INPUT
     Medium                    Speed
    Teletypewriter Lines
     Console Teletypewriter
     Data Speed Lines        2,400 baud
     Paper Tape Reader          10 - 400 cycles/sec
     Card Reader               800 cards/min
    In addition, there are manual console switches, 
    magnetic tape, magnetic drum, magnetic disc, dual
    transfer path between machines for dual systems, 
    and inquiry sets. Any available codes may be used at
    any commercial speeds.

    OUTPUT
     Medium                 Speed
     Teletypewriter Lines
     Console Typewriter     Typing speed
     Data Speed Lines       to 2,400 baud
     Paper Tape Punch       10 cps - 400 cps
     Card Punch            250 cards/min
     High Speed Printer    600 - 1,000 lines/min
    In addition, there are console and peripheral indicator 
    lights, magnetic tape, magnetic drum, magnetic
    disk, dual transfer path between machines for dual 
    systems, digital data display (direct-view CRT and
    projection). Any available code may be used 
    at any commercial speed.

    CIRCUIT ELEMENTS OF ENTIRE SYSTEM
    Type              Quantity
    Tubes                     0
    Diodes               22,209
    Transistors          11,742
    Magnetic Cores    1,245,184 (max)
    The cores are arranged in 19 arrays of 4,096 words each.

    CHECKING FEATURES
    Fixed checking features include memory parity 
    and peripheral equipment status and error checks.
    Diagnostic routines are available as well as 
    programmed message/data checking.

    POWER, SPACE, WEIGHT, AND SITE PREPARATION
    Power, cumputer         5.0 Kw
    Volume, computer      130 cu ft
    Area, computer         26 sq ft
    Room size              15 x 20 ft
    Floor loading         150 lbs/sq ft
                        3,000 lbs concen max
    Weight, computer    5,000 lbs
    Site preparation requirements
    False floor (or ducting) are required
    Air conditioning is required for 20,000 BTU/hr 
        to maintain 60 - 80 F and 40% to 60% relative humidity.

    PRODUCTION RECORD
    Number produced to date       8
    Number in current operation   6
    Time required for delivery    9 months
    An average installation requires nine months 
    to deliver hardware on-site, three months to cutover a
    completely operational real-time system.

    COST, PRICE AND RENTAL RATES
    Maintenance provided either as part of rental, 
    or separate contract, if sale.

    PERSONNEL REQUIREMENTS
                 One 8-Hour Two 8-Hour Three 8-Hour
                 Shift      Shifts     Shifts
    Supervisors    1          2           3
    Operators      1          2           3
    Technicians    1          2           3
    Training made available by the manufacturer to 
    the users include a basic programing course, an
    advanced programming course, operator course, 
    supervisor course, and and executive seminar in
    information processing.

BRL 1964, ITT 7300 MOD II, starting page 0176
 

    Maintenance training is provided on a contract basis.

    RELIABILITY, OPERATING EXPERIENCE
    In order to improve reliability, diagnostic programs, 
    modular "motherboard" construction, self-check
    programming techniques, and better than 900 average
    effectiveness level with a dual system with
    automatic switchover from active main-frame to 
    standby mainframe, are provided.

    ADDITIONAL FEATURES AND REMARKS
    Outstanding features include asynchronous Input 
    Output/Compute, minimum of 256 external interrupts,
    interrupts assigned priorities, and multiple priority interrupts.

    Unique system advantages include external interrupts 
    which "break into" processing, eliminating the need
    for time consuming scans, i.e., an on-demand system, 
    designed for message/data and information
    processing use.

    Normal magnetic tape procedures may be followed for 
    the handling of magnetic tape.

    Asynchronous operation of diverse input/output devices 
    both remote, e.g., teletypewriter and inquiry
    sets, and local e.g., magnetic tape, disc, and drums 
    as well as digital data display is possible in addition
    to the ability to handle diverse codes, speeds, formats
    from wide range of peripheral devices and/or computers.

    INSTALLATIONS
    U.S. Department of State (Paris) 
    USAF Offutt AFB
    NASA, Huntsville, 
    Alabama Aluminum Company of Canada 
    American Cable and Radio Corporation 
    Eastern Air Lines, New York City 
    Standard Telephones and Cables Limited, London

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