Alice Averlong🏳️⚧️What do you expect opening up a keyboard?
an ARM chip, probably a Cortex-M0? Some 8051-clone? Maybe a some anonymous 8-pin microcontroller, or a blobbed over IC?
HOW ABOUT AN IBM PC? AS IN, IT'S AN 8088-COMPATIBLE RUNNING ACTUAL FUCKING PC-DOS?
So this is a Gilson keypad, rather than a traditional keyboard. This is a control pad for some kind of automatic liquid handling system. Something like a pick-and-place, but with pipettes.
Misty