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''Taken from [http://en.wikipedia.org/w/index.php?title=ZX_Spectrum Wikipedia']'
The '''ZX Spectrum''' (the "Z" is pronounced "Zed" in its original [[British English]] branding) is an 8-bit personal home computer released in the United Kingdom in 1982 by Sinclair Research Ltd. Referred to during development as the ''ZX81 Colour'' and ''ZX82'', the machine was launched as the ''ZX Spectrum'' by Sinclair to highlight the machine's colour display, compared with the black-and-white of its predecessor, the [[ZX80/81|Sinclair ZX81]]. The Spectrum was released in eight different models, ranging from the entry level model with 16KB RAM released in 1982 to the ZX Spectrum +3 with 128 KB RAM and built in floppy disk drive in 1987; together they sold in excess of 5 million units worldwide.
The Spectrum was among the first mainstream audience home computers in the UK, similar in significance to the Commodore 64 in the USA. The introduction of the ZX Spectrum led to a boom in companies producing software and hardware for the machine, some credit it as the machine which launched the UK IT industry. Licensing deals and clones followed, and earned Clive Sinclair a knighthood for "services to British industry".
