Comment Re:The Sinclair is not a big deal (Score 1) 196
"The Sinclair"? ZX81 was just _a_ Sinclair.
ZX Spectrum, on the other hand, was big - at least in Eastern Europe and USSR. There was a dozen or so clones, with schematics printed in the magazines, and later a whole lot of extension tucked on, like whopping 1M RAM, modems, IDE controllers and so on.
It still has a significant community and demo scene presence.