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The TrackWrite, also known as the butterfly keyboard, is a foldout laptop computer keyboard designed by John Karidis for IBM as part of the ThinkPad 701 series, released in 1995.〔(Shaping the evolution of the PC | CNET News.com )〕 It allowed the 701 series to be both compact (when closed) and comfortable to use (when open), despite being just 24.6 cm (9.7 in) wide with a 26.4 cm (10.4 in) VGA LCD. The 701 was the top selling laptop of 1995;〔(IBM'S Butterfly On A Pin. ) February 19, 1996. Businessweek.〕 however, as later laptop models featured progressively larger screens, the need for a folding keyboard was eliminated. Consequently, no model but the 701 used the butterfly keyboard. The butterfly keyboard is split into two roughly triangular pieces that slide as the laptop's lid is opened or closed. As the lid is opened both pieces slide out to the sides, followed by one piece sliding downward. The two halves mesh to form a keyboard 29.2 cm (11.5 in) wide which overhangs the sides of the laptop body. Conversely, as the lid is closed one piece slides back, then both slide inward until the keyboard can be covered by the lid. The movement of the keyboard is driven by a cam on the lid's hinge, so the motions of the keyboard parts are always synchronized with the movement of the lid. The unusual design is being displayed in the design collection of the Museum of Modern Art in Manhattan, New York 〔(Think Pad 701 Portable Computer ) The Museum of Modern Art, New York〕 and Die Neue Sammlung. == Usage In film == An IBM Thinkpad 701 is briefly seen being used by James Bond in the film ''GoldenEye''. It is seen around 41:09 into the film when Bond is being briefed by Q in his laboratory. One can also be spotted in the movie ''Blood Diamond'', used by journalist Maddy Bowen (played by Jennifer Connelly). 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「IBM ThinkPad Butterfly keyboard」の詳細全文を読む スポンサード リンク
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