Among old CPUs, the 6809 never got as much attention ... Now [Dave] has reconstructed that computer on breadboards and it looks great. The files are on GitHub and there is even a series of videos ...

it’s old, obscure displays with no documentation that need a healthy dose of reverse engineering before they can be put to use. These Plessey dot-matrix displays are a perfect example of that.

Microsoft Founder Bill Gates Reflects Upon a 50-Year-Old Computer Code That Reshaped Technology Even as he grows older, Microsoft founder Bill Gates still fondly remembers the catalytic computer ...