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List of ZX Spectrum clones
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==== Profi ==== The '''Profi''' or '''ZX-Profi''' is a Soviet ZX Spectrum clone developed in 1991 in Moscow by Kondor and Kramis.<ref>{{Cite web |title=Sinclair Nostalgia Products - Sinclair Clones - Profi |url=https://www.interface1.net/zx/clones/profi.html |website=Interface1.net |access-date=2023-01-17 }}</ref><ref>{{Cite web |title=ATM-Turbo and others ZX Spectrum clones , history of Profi computer |url=http://zxpress.ru/article.php?id=18519&lng=eng |website=Zxpress.ru |access-date=2023-01-17 }}</ref><ref name=":2"/> It features a 7 MHz Zilog Z80 CPU, up to 1024 KB RAM, 64 KB ROM, [[AY8910]] sound chip, [[Beta 128]] disk interface, [[Integrated Drive Electronics|IDE]] interface, and 512 x 240 multi-colour (i.e. two possible colours per 8 x 1 block) graphics mode for CP/M. Users liked to plug in two 8-bit DACs to play 4-channel modules of [[Scream Tracker]]. It also has both parallel and serial ports, and the possibility of attaching an IBM keyboard.{{Citation needed|date=May 2025}} [[File:Robik computer keyboard.png|thumb|Robik keyboard layouts]]
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