SINCLAIR  ZX80

In 1980 Sir Clive Sinclair introduced his first computer and called it ZX80. Computer had Z80 microprocessor at 3.25 MHz, 4 KB ROM and 1 KB RAM, and it was also sold as a do-it-yourself kit. It didn't last for long; a few months later, the (almost identical) ZX-81 came out.

SINCLAIR  ZX81

The Sinclair ZX81 (or Timex/Sinclair TS1000 in USA) is the second computer marketed by Sir Clive Sinclair in the early eighties. It had a Z80A processor operating at 3.2 MHz, 1K RAM (yes! only 1024 bytes, but expandable to 48K), 32x24 text screen and 64x48 graphics resolution in black and white. Programs could be stored on tape and be retrieved at 300 baud.

SINCLAIR  ZX-SPECTRUM

Later computers from Sinclair include the ZX Spectrum (1982), undoubtedly the most popular of all Sinclair machines. It was based on Z80/3.5 MHz and had 16K ROM and (16) 48K RAM in basic version (on the picture), introduced in 1982. It was followed with Spectrum + (better - non-rubber - keyboard), Spectrum 128 (128 KB RAM), Spectrum +2 (128 KB RAM, tape recorder), Spectrum +3 (128 KB RAM, new OS, 3" disk drive) and Spectrum +2A (as +3 with tape recorder).

JUPITER  ACE

The Jupiter Ace was a Z80 based machine released by Jupiter Cantab in 1983, designed by two former Sinclair employees. It was unique in that it was the only home micro that used FORTH as its language. It came with 3 KB of RAM, however a 16 KB RAM Pack was produced.

SINCLAIR  QL

The QL was the latest "pure" Sinclair project (1984). Machine featured 8/32bit 68008/8 MHz microprocessor, 48K ROM and 128K RAM, multitasking OS and microdrives.

CAMBRIDGE  Z88

The Cambridge Z88 was launched in August 1987 by Sir Clive Sinclair under his new company, Cambridge Computers (he was unable to sell it under the Sinclair name, having sold his rights to Amstrad in 1986). The Z88 was one of the first useful computers to be truly portable, and not simply "luggable". Weighing in at just 900 g, the A4-sized computer contained a full-sized rubber-key keyboard, a large adjustable LCD display and was expandable by the addition of up to three RAM- or ROM-cards.

SAM  COUPE

The SAM Coupe was launched in 1989 by company named Miles Gordon Technology (founded by former Sinclair employees) and was seem by most to be the ideal upgrade from the ZX Spectrum. It was powered with Z80B CPU at 6 MHz, it had 512 KB RAM and two disk drives internally mounted. SAM also featured good graphics, stereo sound chip and MIDI interface.