IBM System/3 turns 40 !

Bob Bradlee caveguy at sbcglobal.net
Thu Jul 30 19:03:35 CDT 2009


On Thu, 30 Jul 2009 16:07:08 -0700, Chuck Guzis wrote:

>Wasn't one of the problems with the 96 column mini-card that it used 
>only 6 punch positions per character on an otherwise 8-bt machine?  
>For those of you having used the system, was there such a thing as 
>column binary on the little cards?  If so, was it 4 columns  = 3 
>bytes?

The extra 2 bits occupied the printable area of the card on top.

makeing each card 96 bytes.

The other Bob








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