In college, we had to wire wrap an 8-bit (6809) CPU with an EPROM and UART to connect a terminal. It looked nothing like your image. A 16 bit address bus, 8 b

In college, we had to wire wrap an 8-bit (6809) CPU with an EPROM and UART to connect a terminal. It looked nothing like your image. A 16 bit address bus, 8 bit data and only RAM/ROM/UART sharing the "bus" meant that the wiring was actually quite neat and it was transparent what wires were doing what. Inevitably, part of the work involved diagnosing poor wraps which would clearly be impossible with that pile of spaghetti in your image. It was one of the most fun projects we had in the 4 years. I thought it very valuable as it brought software (writing a simple monitor using a cross-compiler) and hardware together.