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The Calcomp 565 drum plotter, introduced in 1959, was one of the first computer graphics output devices sold. The computer could control in 0.01 inch increments the rotation of an 11 inch (280 mm) wide drum and the horizontal movement of a pen holder over the drum. The pen was pressed by a spring against paper scrolling across the drum. A solenoid could lift the pen off the paper. This arrangement allowed line drawings to be made under computer control. Years later Calcomp made model 563 which used a 30" wide drum. IBM sold the Calcomp 565 as the IBM 1627 for use with its low-end scientific computers, first the IBM 1620, and, later, the IBM 1130. It was perhaps the first non-IBM peripheral that IBM allowed to be attached to one of its computers. The paper rolls were long. A metal bar above the take-up reel allowed a finished plot to be torn off and removed. The drum would then be advanced using the manual controls and the fresh paper end taped to the take-up reel. The standard pen was a ball-point, but liquid ink pens were available, and typically used for higher quality plots intended for publication. Other paper stock could be taped to the drum if desired. A chart drive switch was provided to turn off the motorized paper supply and take-up reels for this purpose. ==External links== *(Programming Calcomp Electromechanical Plotters ) *(Photo of Calcomp 565 plotter at Stuttgart Computer Museum ) *(Picture of a Calcomp 565 ) *(Calcomp 563 Incremental Plotter Information ) *(A working Calcomp 565 on Youtube.com ) *(Animated diagram of Calcomp 565/563 pen assembly ) 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「Calcomp plotter」の詳細全文を読む スポンサード リンク
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