History of Sinclair Computers
- 1980: February - Sinclair Research announces the ZX80 computer in the North American market.
- 1981: March - Sinclair unveils the ZX81 in the UK, based on the Z80A microprocessor.
- 1981: December - Sinclair Research reports that it has shipped 250,000 ZX81 personal computers.
- 1982: April - Sinclair Research introduces the Sinclair ZX Spectrum in the UK.
- 1982: July - Timex Computer begins selling the Timex Sinclair 1000 through over 1000 Timex retail outlets.
- 1982: August - Sinclair Research reports that it has shipped 500,000 ZX81 personal computers in over 30 countries.
- 1983: January - Timex introduces the Timex/Sinclair 2000, which is their re-packaged Sinclair Spectrum for the North American market.
Chronology of Events in the History of Microcomputers