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来自维基百科,自由的百科全书
依运作机制概分机械、电容量、光学式三种。其中机械、电容量式使用同唱针性质的触针,光学式则是以雷射读取、又分成反射式跟透射式。由于触针型的碟片和针头接触多少会产生磨损[2],现机械、电容量式均已遭淘汰。
机械式(Mechanical)
电容量式(Capacitance Based)
光学式(Optical discs)
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