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The Expert, made by Gradiente Eletrônica (to date best known as a game console and Hi-Fi equipment company) was the second and last MSX home computer launched in the Brazilian market, in the mid-1980s. It was presented to the public at the (5th International Computing Fair ), nicknamed "Informatica '85". The event took place at (Anhembi Exhibition Center ) in the city of São Paulo from September 23 to 29, 1985.〔-("Uma Vitrine Renovada" ''VEJA'' Magazine Nº891, p.88,89 São Paulo, 02/Oct/1985 )〕 At the announcement, the computer was priced 65 (ORTN ) s.〔-("A Microinformática no Brasil" ''Micro Sistemas'' Magazine, Special Edition Informatica '85, p.36, Rio de Janeiro, Sep/1985 )〕 Its market release date was 1 December 1985, one week after Epcom's Hotbit, just in time for 1985's Christmas and with a massive media campaign on magazines, newspapers and TV. In the newspapers ads the initial offer price was Cr$4.640.000,00 Brazilian Cruzeiros (BRB), or US$493,62 (USD) by the value at the time.〔-("BRENO ROSSI shop advertising" Newspaper ''O Estado de S. Paulo'' Nº33.987, p.24, São Paulo, 15/Dec/1985 )〕 The machine was a clone of the National CF-3000, with a computer case resembling a stereo system, a detached keyboard with a proprietary connector, no caps lock LED and no reset key,〔(Gradiente Expert Plus ) at old-computers.com〕 although the soft-reset could be achieved by pushing in either of the cartridge slot covers. The Expert XP-800 was followed by the Expert GPC-1 ("Gradiente Personal Computer") in 1987, and by Expert Plus and Expert DD Plus (a system with a built-in 720 KB 3½" disk drive) in 1989. The Expert users waited in vain for an MSX2 machine, but Gradiente never produced it〔 and discontinued the MSX line in 1991.〔-(The MSX in Brazil )〕 ==Versions XP-800/GPC-1== The two first versions had a graphite case and socketed chips, which caused a chronic problem: when the machine heated, the chips frequently pulled out and the system "froze". Also, the GPC-1, released in 1987, had a ROM slightly modified to solve an ASCII table compatibility issue with the other popular Brazilian MSX, Sharp's Hotbit.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Gradiente Expert」の詳細全文を読む スポンサード リンク
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