Sinclair ZX Spectrum – Personal Computer (1982)

Sinclair ZX Spectrum – Personal Computer (1982)
  • Model : Model with 16 kb RAM & Model with 48 kb RAM Developer : Sinclair Research
  • Manufacturer :Timex Corporation
  • Released in : April 23, 1982
  • Operating System : Sinclair  BASIC


  • CPU : Zilog Z80 A
  • Memory : 16 KB / 48 KB / 128 KB  
  • Media : Cassette tape, 3-inch floppy disk
  • Graphics : 256 x 192
  • Sound : 1 voice / 10 octaves (Beeper)
  • Input : Keyboard
  • Connectivity :  RS-232 serial port, an RGB monitor port


The ZX Spectrum is a range of home computers based on the Z80 microchip, sold by Sinclair Research Ltd., a business entity owned by British inventor Sir Clive Sinclair. The computer was first manufactured in April 1982 as part of a project to sell computers at an affordable price to any family. The ZX sold better than any other computer in Britain and Spain at the time. The first ZX was especially popular because it was so small and relatively inexpensive. The keyboard is made of rubber and the cover is made of plastic, small compact size, and distinctive rainbow motif.

Two models were launched: one with 16 kb RAM and one with 48 kb RAM.

The ZX sold more than any other computer at that time in Britain and Spain. The first ZX was especially known for being very small and relatively cheap. The keyboard was made of rubber and the casing was made of plastic