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来自维基百科,自由的百科全书
依運作機制概分機械、電容量、光學式三種。其中機械、電容量式使用同唱針性質的觸針,光學式則是以雷射讀取、又分成反射式跟透射式。由於觸針型的碟片和針頭接觸多少會產生磨損[2],現機械、電容量式均已遭淘汰。
機械式(Mechanical)
電容量式(Capacitance Based)
光學式(Optical discs)
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