Explain how CDs and DVDs are utilized differently to store information as an example.
Explain how CDs and DVDs are utilized differently to store information as an example.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Transcribed Image Text:Explain how CDs and DVDs are utilized differently to store information as an example.
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A compact disc is a portable storage medium that can be used to record, store and play back audio, video and other data in digital form.
CD data is stored as a series of tiny indentations (pits), encoded in a tightly packed spiral track of pits moulded into the top of the polycarbonate layer. The areas between pits are known as 'lands'. Each pit is approximately 100 nm deep by 500 nm wide, and varies from 850 nm to 3.5 μm of length.
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