The Sinclair ZX81 was small, black with only 1K of memory, but 30 years ago it helped to spark a generation of programming wizards. Packing a heady 1KB of RAM, you would have needed many, many ...

The ZX81 was Sir Clive’s second Z80-based computer, and its low price made it an instant success which paved the way for the legendary ZX Spectrum.

The ZX81 came with a built-in keyboard but no screen nor any permanent means of storage. An audio cassette recorder served, somewhat erratically, as the latter. To display data, ...

The ZX81 casing measures around 6.6 x 6.9 x 1.6 inches, which makes for a tight squeeze inside. Nonetheless, you're looking at a full motherboard, with separate hard-drive (no CF cop-out here) and ...

ZX81 was tiny, with a small plastic case, membrane keyboard, 1K of RAM, and an external expansion connector. Sinclair also released a 16K memory upgrade module that plugged into the back. US ...

The Sinclair ZX81 home computer is 30 today. It and its variants such as the Timex-Sinclair 1000 sold over one and a half million units – which combined would have the processing power of around ...

To be true to the original, he built everything into an original ZX81 case. This isn’t the first time we’ve seen a ZX81 , but it is one of the better implementations of an emulated version of ...

The ZX81 is 42. The meaning of life. And it kind of was to a generation of British school kids. That is, if they could keep the 16KB RAM pack connected for long enough. Typing on the ZX81’s hideous ...

After Sinclair launched the initial ZX80 in 1980, the market was already ready for a more developed version of the Sinclair micro-computer. So when the ZX81 launched on 5th March a year later, it ...

The Sinclair ZX81 costs $99 (£68 -- roughly the same as they did in 1981) but are sadly not available outside the US. To have your say online click on the TalkBack button and go to the ZDNet News ...