It’s a computer in almost its simplest form.

There’s almost nothing to it, the circuit diagram is easy to read, you program it literally by flipping a couple of dip switches.

It’s kind of an experiment for someone wanting to get into retro computer or hardware design.

That said it’s essentially useless and I would much rather buy a kit from Ben Eater start with a 6502 and make something that can actually run complex programs.