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The IBM 80-column punched card format dominated the industry, becoming known as just IBM cards, even though other companies made cards and equipment to process them. [65] A 5081 card from a non-IBM manufacturer. One of the most common punched card formats is the IBM 5081 card format, a general purpose layout with no field divisions.
An IBM 80-column punched card of the type most widely used in the 20th century IBM 1442 card reader/punch for 80 column cards. 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.
IBM 80 Electric Punched Card Sorting Machine, model 1, Introduced by IBM in 1925, 450 cards per minute. [3] This sorter was almost twice the speed of the older Hollerith 70 vertical sorter and used an entirely new magnetically operated horizontal design.
An IBM 519 might be provided to reproduce program decks for backup or to punch sequential numbers in columns 73-80. In such mainframe installations, known as "closed shops," [ a ] programmers submitted the program decks, often followed by data cards to be read by the program, to a person working behind a counter in the computer room.
The IBM 80-column card was introduced in 1928. The Remington Rand Card with 45 columns in each of two tiers, thus 90 columns, in 1930. [76] Powers-Samas punched cards include one with 130 columns. [77] Columns on different punch cards vary from 5 to 12 punch positions. The method used to store data on punched cards is vendor specific.
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 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.
There are 80 contacts, one for each column on a standard IBM punched card. Input hopper for the IBM 1402's card punch Cables entering the back of the IBM 1402. 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.
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