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Question

The punched card used in the IBM system/3 contains.

A
80 columns
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B
120 columns
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C
96 columns
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D
126 columns
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E
None of the above
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Solution

The correct option is C 96 columns

The punched card used in the IBM system/3 contains 96 columns.

The IBM System/3 was an IBM midrange computer introduced in 1969,[1] and marketed until 1985. It was produced by IBM Rochester in Minnesota as a low-end business computer aimed at smaller organizations that still used IBM 1400 series computers or unit record equipment. The first member of what IBM refers to as their "midrange" line, it also introduced the RPG II programming language.

In the late 1960s, IBM introduced a new, smaller, round-hole, 96-column card format along with the IBM System/3 computer. These cards have tiny (1 mm), circular holes, smaller than those in paper tape. Data is stored in 6-bit BCD, with three rows of 32 characters each, or 8-bit EBCDIC. In this format, each column of the top tiers are combined with two punch rows from the bottom tier to form an 8-bit byte, and the middle tier is combined with two more punch rows, so that each card contains 64 bytes of 8-bit-per-byte binary coded data.


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