HWD101Lab8AnsUnhidden

HWD101Lab8AnsUnhidden - Week 8 Lab Fall 2009 Secondary...

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Week 8 Lab Fall 2009 HWD101 Secondary Storage Name____________________ Student ID________________ Section___________________ Procedure: Use your textbook or other reliable sources to answer the following questions. 1. A CD / DVD is made of a polycarbonate wafer. How is data recorded on this wafer / disk?. . A single physical track in a spiral configuration starting from the inside of the disc and spiraling outward 2. Name the six main areas of a typical CD-ROM disk (and know what they are). Hub clamping area, power calibration area, program memory area, Lead-in, Program area, Lead-out. 3. Identify the three main copy protection systems used with DVD-Video discs. Regional Playback Control (RPC), Content Scrambling System (CSS), Analog Protection System (APS) 4. What are names of the two mechanical actions / motions called to support the read head movements on a CD or DVD device? Constant linear velocity (CLV) and constant angular velocity (CAV) 5. Describe the PIT and LANDS concept used to record data on an Optical device? When the light hits a land (flat spot) on the track, the light is reflected back, an ON bit however
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HWD101Lab8AnsUnhidden - Week 8 Lab Fall 2009 Secondary...

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