Sinclair History of personal computers

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sinclair zx spectrum


sinclair research ltd british consumer electronics company founded sir clive sinclair in cambridge. incorporated in 1973 ablesdeal ltd. , renamed westminster mail order ltd , sinclair instrument ltd. in 1975. company remained dormant until 1976, when activated intention of continuing sinclair s commercial work earlier company sinclair radionics; adopted name sinclair research in 1981. in 1980, clive sinclair entered home computer market zx80 @ £99.95, @ time cheapest personal computer sale in uk. in 1982 zx spectrum released, later becoming britain s best selling computer, competing aggressively against commodore , british amstrad. @ height of success, , largely inspired japanese fifth generation computer programme, company established metalab research centre @ milton hall (near cambridge), in order pursue artificial intelligence, wafer-scale integration, formal verification , other advanced projects. combination of failures of sinclair ql computer , tv80 led financial difficulties in 1985, , year later sinclair sold rights computer products , brand name amstrad. sinclair research ltd exists today one-man company, continuing market sir clive sinclair s newest inventions.



zx80


the zx80 home computer launched in february 1980 @ £79.95 in kit form , £99.95 ready-built. in november of same year science of cambridge renamed sinclair computers ltd.



zx81


the zx81 (known ts 1000 in united states) priced @ £49.95 in kit form , £69.95 ready-built, mail order.



zx spectrum


the zx spectrum launched on 23 april 1982, priced @ £125 16 kb ram version , £175 48 kb version.



sinclair ql


the sinclair ql announced in january 1984, priced @ £399. marketed more sophisticated 32-bit microcomputer professional users, used motorola 68008 processor. production delayed several months, due unfinished development of hardware , software @ time of ql s launch.



zx spectrum+

the zx spectrum+ repackaged zx spectrum 48k launched in october 1984.



zx spectrum 128

the zx spectrum 128, ram expanded 128 kb, sound chip , other enhancements, launched in spain in september 1985 , uk in january 1986, priced @ £179.95.







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