2014-04-26 10:52:28 -04:00
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green card
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2014-04-26 11:54:15 -04:00
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n. [after the IBM System/360 Reference Data card] A summary of an assembly
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language, even if the color is not green and not a card. Less frequently
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used now because of the decrease in the use of assembly language. I'll go
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get my green card so I can check the addressing mode for that instruction.
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The original green card became a yellow card when the System/370 was
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introduced, and later a yellow booklet. An anecdote from IBM refers to a
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scene that took place in a programmers' terminal room at Yorktown in 1978. A
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luser overheard one of the programmers ask another Do you have a green card?
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The other grunted and passed the first a thick yellow booklet. At this point
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the luser turned a delicate shade of olive and rapidly left the room, never
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to return. In fall 2000 it was reported from Electronic Data Systems that
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the green card for 370 machines has been a blue-green booklet since 1989.
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