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 ...

This spiral-bound set of sheets introduces the BASIC programming language, as used on the Sinclair ZX81 computer. It is the second edition,written by Steven Vickers and published by Sinclair Research ...

If you’re as old as me, then you probably remember the Sinclair ZX81 from 1981. This iconic piece of computing history has been given a new lease on life by a clever modder who has transformed its ...