Sinclair ZX80 / ZX81 / Z88 Forums

Since rediscovering the ZX81 family, I was curious what was meant by the ULA integrated circuit. Well, as they say, GIYF, Wikipedia shows it to mean "Uncommitted Gate Array" or in other words, an IC with a bunch of logic gates that can be configured by connecting (or disconnecting) paths between the...

Welcome hackdog!
I enjoyed reading your intro.

A Timex-Sinclair 1000 was my first computer, followed by a VIC-20 and an Atari 400. But it was the T-S 1000 that I really cut my teeth on. The 16K Expansion followed a few months later. Unfortunately, it all broke when I tried to add a "real" keyboard sometime later. (tossed it all) A couple weeks a...