“This is a ZX81 compatible Z80 based 8 bit computer kit with 32K RAM. It evolved from the Minstrel Issue 2 ZX80 clone.

Many of us have enjoyed building electronic projects that come not from our own inspiration or ingenuity but from a ready-made kit. It makes sense, after all in buying a kit you should receive a ...

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 ...

Nick, gaming, and computers all first met in 1981, with the love affair starting on a Sinclair ZX81 in kit form and a book on ZX Basic.

Developed by a firm founded by British inventor Sir Clive Sinclair, the ZX81 sold in kit or pre-assembled form. It featured a 3.25 MHz Z80 CPU, 1KB of RAM, and a built-in BASIC programming language.

The Sinclair ZX81 was small, black with only 1K of memory, but 30 years ago it helped to spark a generation of programming wizards.

[Victor Trucco] makes us wish we spoke Portuguese. He’s done a lot of retrocomputing projects including connecting a ZX81 to the Internet to load programs. The project uses — wha… ...

Nick, gaming, and computers all first met in 1981, with the love affair starting on a Sinclair ZX81 in kit form and a book on ZX Basic.

On March 5, 1981, Sinclair Research launched the ZX81 home computer in the U.K. (It was also known as the Timex-Sinclair TS1000 in the U.S.) It came with just one kilobyte of memory, and was a ...

Sinclair’s breakthrough home micro still shines over four decades later. We look back at the ZX81 and six of its best games.

Buyers could choose between a kit version, assembling the ZX81 themselves, or opt for a fully-assembled model ready for use once plugged into a television and power source.