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The Atari ST is a line of home computers from Atari Corporation and the successor to the Atari 8-bit family. The first ST model, the 520ST, was released in June 1985. "ST" officially stands for "Sixteen/Thirty-two", which referred to the Motorola 68000's 16-bit external bus and 32-bit internals. The Atari ST is the first personal computer to come with a bit-mapped color GUI,〔(【引用サイトリンク】 url = http://media.arstechnica.com/images/gui/guitimeline.jpg )〕 using a version of Digital Research's GEM released in February 1985.〔(A.N.A.L.O.G. TCS #1 001 03/20/85 DRI SHIPS GEM: net.micro.atari: Google Groups ). Groups.google.com (1985-03-11). Retrieved on 2013-04-22.〕 The 1040ST, released in 1986, is the first personal computer to ship with a megabyte of RAM in the base configuration and also the first with a cost-per-kilobyte of less than USD$1.〔 The Atari ST is part of the 16/32 bit generation of home computers, based on the Motorola 68000 CPU, typically with 512 KB or more of RAM, a graphical user interface, and 3½"floppy disks as storage. The ST was primarily a competitor to the Macintosh, Amiga, and, in certain markets, the Acorn Archimedes. Whereas the Amiga has custom graphics processors and sample-based synthesis audio, the ST has a basic frame buffer and a 3 voice synthesizer chip but with a slightly faster CPU and a high-resolution monochrome display mode ideal for business and CAD. Its simple design allowed the ST to precede the Commodore Amiga's commercial release by almost two months. In some markets, particularly Germany, the machine gained a strong foothold as a small business machine for CAD and Desktop publishing work. Thanks to its built-in MIDI, the ST enjoyed success for running music-sequencer software and as a controller of musical instruments among both amateurs and well-known musicians. The ST was later superseded by the Atari STE, Atari TT, Atari MEGA STE, and Falcon computers. == Origins == The Atari ST was born from the rivalry between home-computer makers Atari, Inc. and Commodore International. 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「Atari ST」の詳細全文を読む スポンサード リンク
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