COMPUTER HARDWARE
STORAGE DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Pen drive
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Hard disk
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CD-ROMs
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None of the above
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Detailed explanation-1: -CD-ROMs are popularly used to distribute computer software, including games and multimedia applications, though any data can be stored (up to the capacity limit of a disc).
Detailed explanation-2: -A CD-ROM allows for a large amount of storage on an inexpensive, portable medium. It allows for the storage of a variety of content including audio and/or video presentations, animations, simulations, slides, etc. in a compact format. Additionally, it allows all content to be presented consistently to participants.
Detailed explanation-3: -A CD-ROM drive uses a low-power laser beam to read digitized (binary) data that has been encoded in the form of tiny pits on an optical disk. The drive then feeds the data to a computer for processing. The standard compact disc was introduced in 1982 for digital audio reproduction.
Detailed explanation-4: -Compact Disc Read Only Memory show sources.
Detailed explanation-5: -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 m of length.