Back Sinclair ZX Spectrum ALS ZX Spectrum AN زد إكس سبكتروم Arabic زى اكس سپكتروم ARZ ZX Spectrum Byelorussian ZX Spectrum BE-X-OLD ZX Spectrum BS ZX Spectrum Catalan Sinclair ZX Spectrum Czech Спєктроумъ CU
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 An issue 2 1982 ZX Spectrum | |
| Developer | Sinclair Research |
|---|---|
| Type | Home computer |
| Generation | 8-bit |
| Release date | |
| Introductory price | UK: £125 (16 KB) (equivalent to £557 in 2023) / £175 (48 KB) (equivalent to £780 in 2023) ,[2] US: $200, ESP: Pta44,250 |
| Discontinued | 1992[3] |
| Units sold | 5 million[4] |
| Media | Compact Cassette, ZX Microdrive, 3-inch floppy disk on Spectrum +3 |
| Operating system | Sinclair BASIC |
| CPU | Z80A (or equivalent) @ 3.5 MHz |
| Memory | 16 KB / 48 KB / 128 KB (IEC: KiB) |
| Display | PAL RF modulator out, 256 × 192, 15 colours |
| Graphics | ULA |
| Sound | Beeper, AY-3-8912 (128K models) |
| Predecessor | ZX81 |
| Successor | QL |
The ZX Spectrum (UK: /zɛd ɛks/) is an 8-bit home computer developed and marketed by Sinclair Research. It has been considered as one of the most influential computers ever made, and is also one of the best selling computers ever, with over five million units sold. It was first released in the United Kingdom on 23 April 1982, and around the world in the following years, most notably in Europe, the United States, and Eastern Bloc countries.
The machine was designed by English entrepreneur and inventor Sir Clive Sinclair, and his small team in Cambridge. It was made to be small, simple, and most importantly inexpensive, with as few components as possible. The addendum "Spectrum" was chosen to highlight the machine's colour display, which differed from the black-and-white display of its predecessor, the ZX81. Its distinctive case, rainbow motif and rubber keyboard were designed by Rick Dickinson. Video output is transmitted to a television set rather than a dedicated monitor, while software is loaded and saved onto compact audio cassettes.
It was initially distributed through mail order, but after severe backlogs the machine was sold through High Street chains in the United Kingdom. It was released in the United States as the Timex Sinclair 2068 in 1983, and in some parts of Europe as the Timex Computer 2048. Ultimately the Spectrum was released as seven different models, ranging from the entry level with 16 KB RAM released in 1982 to the ZX Spectrum +3 with 128 KB RAM and built-in floppy disk drive in 1987. Throughout its life, the machine primarily competed with the Commodore 64, BBC Micro, Dragon 32, and the Amstrad CPC range. Over 24,000 different software products were released for the ZX Spectrum.[1]
The ZX Spectrum played a pivotal role in the early history of personal computing and video gaming, leaving an enduring legacy that influenced generations. Its introduction led to a boom in companies producing software and hardware, the effects of which are still seen. It was among the first home computers aimed at a mainstream audience, with some crediting it as being responsible for launching the British information technology industry. Until the Raspberry Pi, the Spectrum retained the title of Britain's best-selling computer for over three decades.[5][6] It was discontinued in 1992.
- ^ a b Lewis, Rhys (23 April 2016). "April 23, 1982: ZX Spectrum brings affordable – and colourful – computing into Britain's homes". London: British Telecom. Archived from the original on 30 April 2016. Retrieved 4 April 2021.
- ^ Leigh 2018, p. 69.
- ^ "How the Spectrum began a revolution". BBC. 23 April 2007. Archived from the original on 26 January 2021. Retrieved 4 April 2021.
- ^ Mott 2000, p. 76.
- ^ Cellan-Jones, Rory (23 April 2012). "The Spectrum, the Pi - and the coding backlash". BBC News. Archived from the original on 9 July 2021. Retrieved 30 June 2021.
- ^ Mason, Graeme (18 February 2022). "ZX Spectrum at 40: a look back". NME. Archived from the original on 10 November 2022. Retrieved 10 November 2022.
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