jdreesen
Experienced Member
Since we are talking retail terminals now : currently on my desk is an ICL 9500 point-of-sale terminal combinator.
The Cogar / Singer / ICL 1501 type tapecartridges store the inputs from up to 16 point-of-sale terminals. These are opto-coupled into the system on 2 identical boards, 8 inputs per board.
Besides the multtplexer board there is a board with the main CPU, a 64K RAM board populated with 4116's, and a tape controller board. CPU's are 8080 and 8085. Sadly these are missing, as are the firmware Eproms. This will thus remain a showpiece, never to see action again. But it is a nice piece of 1980's real life application.
The Cogar / Singer / ICL 1501 type tapecartridges store the inputs from up to 16 point-of-sale terminals. These are opto-coupled into the system on 2 identical boards, 8 inputs per board.
Besides the multtplexer board there is a board with the main CPU, a 64K RAM board populated with 4116's, and a tape controller board. CPU's are 8080 and 8085. Sadly these are missing, as are the firmware Eproms. This will thus remain a showpiece, never to see action again. But it is a nice piece of 1980's real life application.