 | |
 IBM 1442 (also available in blue) | |
| Type | Punch card reader, or reader/writer (punch), or punch only |
|---|---|
| Release date | 1962 |
| Related | IBM 1402 reader/punch; IBM 2501 reader |
IBM 1442 [1] [2] is a combination IBM card reader and card punch. It reads and punches 80-column IBM-format punched cards [3] and is used on the IBM 1440, the IBM 1130, the IBM 1800 [4] and System/360 [5] and is an option on the IBM System/3. [6]
The 1442 [7] can read up to 400 cards per minute. Cards are read and punched one column at a time and binary cards are permitted. Cards are read using photocells, [8] illuminated by fiber optics, unlike the IBM 1402, which uses wire brushes to read cards. It is even possible to create (but not read, except in Binary Mode [9] ) "IBM Doilies," cards with every possible hole punched. Few other pieces of IBM equipment could do this without sustaining damage.
There are two output stackers, located in the photo on the left lower side. One could program to select the output stacker for each card read, so it is possible to read cards and separate them into two groups. Cards are placed in the top hopper ("face down, nine-edge leading") and a plate is added on the top of the cards. They are read thru and come out to one of the left lower stackers.
The 1442 does not print on the top of the cards; it just punches what characters the columns contains. An older unit record machine, the IBM 557 interpreter, can be used off-line for this function.
Not all models have both read and punch features. [10]
The following units were not designed to punch cards:
The 1442 has two weaknesses for those wanting more throughput:
By combining the higher speed IBM 2501 card reader and a punch-only IBM 1442, [5] [18] the 1442's limitations are overcome:
The IBM 1440 computer was announced by IBM October 11, 1962. This member of the IBM 1400 series was described many years later as "essentially a lower-cost version of the 1401," and programs for the 1440 could easily be adapted to run on the IBM 1401.
The IBM 1130 Computing System, introduced in 1965, was IBM's least expensive computer at that time. A binary 16-bit machine, it was marketed to price-sensitive, computing-intensive technical markets, like education and engineering, succeeding the decimal IBM 1620 in that market segment. Typical installations included a 1 megabyte disk drive that stored the operating system, compilers and object programs, with program source generated and maintained on punched cards. Fortran was the most common programming language used, but several others, including APL, were available.
The IBM 1403 line printer was introduced as part of the IBM 1401 computer in 1959 and had an especially long life in the IBM product line.
The IBM 407 Accounting Machine, introduced in 1949, was one of a long line of IBM tabulating machines dating back to the days of Herman Hollerith. It had a card reader and printer; a summary punch could be attached. Processing was directed by a control panel.
IBM 7070 is a decimal-architecture intermediate data-processing system that was introduced by IBM in 1958. It was part of the IBM 700/7000 series, and was based on discrete transistors rather than the vacuum tubes of the 1950s. It was the company's first transistorized stored-program computer.
From the invention of computer programming languages up to the mid-1970s, most computer programmers created, edited and stored their programs line by line on punch cards.
The IBM 2540 is a punched-card computer peripheral manufactured by IBM Corporation for use of System/360 and later computer systems. The 2540 was designed by IBM's Data Processing Division in Rochester, Minnesota, and was introduced in 1965. The 2540 can read punched-cards at 1000 cards per minute (CPM) and punch at 300 CPM. The 2540 is based on the design of the older, slightly slower, 1402.
The IBM 2780 and the IBM 3780 are devices developed by IBM to perform remote job entry (RJE) and other batch functions over telephone lines; they communicate with the mainframe via Binary Synchronous Communications and replaced older terminals using synchronous transmit-receive (STR). In addition, IBM has developed workstation programs for the 1130, 360/20, 2922, System/360 other than 360/20, System/370 and System/3.
The English Electric System 4 was a mainframe computer announced in 1965. It was derived from the RCA Spectra 70 range, itself a variant of the IBM System 360 architecture.
The IBM 1402 was a high speed card reader/punch introduced on October 5, 1959 as a peripheral input/output device for the IBM 1401 computer. It was later used with other computers of the IBM 1400 series and IBM 7000 series product lines. It was adapted as the IBM 1622 Card Read-Punch for the IBM 1620 and provided the basic design for the models 2501, 2520 and 2540 equipment used with the IBM System/360 product line.
A computer punched card reader or just computer card reader is a computer input device used to read computer programs in either source or executable form and data from punched cards. A computer card punch is a computer output device that punches holes in cards. Sometimes computer punch card readers were combined with computer card punches and, later, other devices to form multifunction machines.
The IBM 2821 Control Unit attaches card readers and card punches, and line printers to the IBM System/360 and IBM System/370 families of computers. The devices attached may be a combination of:
The IBM 533 Input-Output Unit, announced on July 2, 1953, was a punched card reader and punch that served as the primary input-output unit for the IBM 650 computer. It had two independent card paths, one for reading and one for punching. IBM cards were fed face down, 12-edge first. All 80 columns could be read and punched by the computer as numeric data, but alphanumeric reading was severely limited on the basic 650 and require special control panel wiring.
The MDS 2400 was a small floor-standing computer manufactured by Mohawk Data Sciences Corporation. The machine was originally developed by Atron Corporation as the Atron 501 Datamanager, introduced in 1969. It was marketed primarily for remote job entry applications and promoted as The Peripheral Processor.
The IBM System/360 Model 20 is the smallest member of the IBM System/360 family announced in November 1964. The Model 20 supports only a subset of the System/360 instruction set, with binary numbers limited to 16 bits and no floating point. In later years it would have been classified as a 16-bit minicomputer rather than a mainframe, but the term "minicomputer" was not current, and in any case IBM wanted to emphasize the compatibility of the Model 20 rather than its differences from the rest of the System/360 line. It does, however, have the full System/360 decimal instruction set, that allows for addition, subtraction, product, and dividend of up to 31 decimal digits.
The IBM 2922 Programmable Terminal is a Remote Job Entry (RJE) terminal introduced by IBM in 1972. The 2922 communicates using Binary Synchronous Communications (Bisync).
The IBM 2501 is a punched-card reader from IBM with models for the System/360 and System/370 mainframe systems and for the IBM System/360 Model 20, the IBM 1130 and IBM System/3 minicomputers. 2501 models can read 80-column cards at either 600 or 1000 cards per minute (CPM).
The IBM 3505 is a reader for 80-column punched cards. It can read cards punched in EBCDIC or column binary at up to 1200 cards per minute (CPM). The IBM 3525 is a multi-function punched card device, capable of reading, punching, and printing on punched cards. The 3505 contains an integrated control unit that attaches to a System/370 byte multiplexer, selector, or block multiplexer channel. An optional feature of the 3505 allows the control unit to also control a 3525, although the two are separately-addressed devices.
IBM designed, manufactured and sold optical mark and character readers from 1960 until 1984. The IBM 1287 is notable as being the first commercially sold scanner capable of reading handwritten numbers.
Remember when computers ran on punch cards?
The load device that came with the system is the IBM 1442 card reader/punch
... drives 7.25MB capacity each 2 IBM 2415 magtape drives 9-track 800/1600-BPI, 1 IBM 2501 card reader, 1 IBM 1442 card punch, 1 IBM 2921 printer controller ...
... cards were the IBM 2560 Multifunction Card Machine (MFCM) which could read, punch, interpret and sort, and the IBM 1442 which could only read and punch.
IBM 1442 @ 212/mo. IBM 029 @ 62/mo. IBM 7720 @ 125/mo. maintenance @ lTl/mo.
IBM 1442 was a combination IBM card reader, card punch. Cards were read punched one column at a time, were read using photocells
IBM 1442 card reader ... 300 cards per minute.
Eighty-column punched card input and output is provided to the 1130 system by the IBM 1442 Card Read Punch, Model 5, 6, or 7, and/or the IBM 2501 Card
IBM mini/midrange computers, workstations, and servers | |||
|---|---|---|---|
| IBM 1130 | |||
| IBM 1400 | |||
| IBM System | |||
| AS/400 |
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| RS/6000 |
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| Other | |||
* Also based on the System/36 | |||
