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Launched in 1981, Sir Clive Sinclairs ZX81 - successor to his ZX80 released the year before - was designed to be a low-cost introduction to home computing for the general public. It was a hugely successful machine, with over one and a half million official units being sold; many more unauthorised clones were also produced, particularly in Russia and other Eastern Bloc countries of the era. One could either purchase the machine pre-built, or - as a significant number of consumers did - buy it in kit form for assembly at home at a slightly cheaper price. This DIY approach, encouraged by Sinclair Research, became a core element of the computers genetic make-up. Those who were comfortable putting together the four silicon chips and other such components were just as keen to poke around the machines memory, learning as much as they could about its capability; the programs they would write could easily be shared once saved onto a standard audio cassette.This book helps the reader truly understand how the ZX81 works, with sections covering everything from the structure of the Z80 microprocessor used in the machine to the computers registers, ALU and more. With an introduction to both binary and hex, Understanding Your ZX81 ROM helped many people get the most out of their machine in the very earliest days of home computing.Book specifications:Collection: Retro ReproductionsDimensions: 229 x 152Author: Ian LoganCover type: PaperbackPublishing Year: 2022Publishing Month: 8Pages: 168Language: EnglishPublisher: Acorn BooksWeight: 213 g
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Vânzător: Elefant.ro
Brand: Acorn Books
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