I'll be honest. I have very little idea of exactly that any of this stuff is. Can anybody shed any light on it?
The purple ceramic chips with windows are common EPROMs. The 2532s are the largest there, and still have practical replacement use in TI-99/4A peripherals.
The board with the white chip: probably some kind of industrial controller.
The white chip with gold pins looks like a TMS9900 cpu: http://www.wikiwand....ruments_TMS9900
I don't think the board is from a computer series (like TM990) because it has no card edge, but I could be wrong.
Most of the CPU lines seem to be buffered to the 50-pin connector at the right edge. Probably this connected to another board, hopefully one with memory on it, because I don't see any RAM or EPROM here.
The 50-pin connector on the left edge goes through a lot of line drivers and buffers, so it is probably an interface to external signals.
Thanks for sharing these photos.