Triad used to be very big in POS systems, particularly
in the auto
parts business. Does that make any sense with your gizmo? Is that
an FPGA or just a custom gate array?
You see Triad systems at Autoparts dealers and Automobile franchises.
They started with Data general minis and I look for old parts in
automotive dealer auctions.
They migrated to PC based systems in the 1990s
I think your cards are terminal cards for multiple serial
conncections. They used to use Wyse 50 terminals along with TI 8XX
printers.
Paxton
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Paxton Hoag
Astoria, OR
USA