Sinclair BASIC programming language

Sinclair BASIC (taking its name from innovator Sir Clive Sinclair) is a dialect of BASIC developed in 1979 originally for the 4K ROM ZX80. It was initially an incomplete implementation of the 1978 ANSI minimal BASIC standard and evolved through the 8K ROM ZX81 and TS 1000 to be almost a complete version in the 16K ROM ZX Spectrum.