COMPUTER SCIENCE AND ENGINEERING
SYSTEM SOFTWARE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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access time
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write time
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random time
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wait time
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Detailed explanation-1: -It is usually measured in milliseconds, which is typically 2 to 4 ms and as low as 1 ms. Full stroke is the amount of time required to seek the whole disc. Full stroke is also measured in milliseconds. A seek time below 10ms is generally considered acceptable for a hard disk.
Detailed explanation-2: -Access speed is the time-oriented and is defined as the amount of time necessary by a storage device to recover data and programs.
Detailed explanation-3: -A storage device’s data transfer rate is computed by dividing 1 by the access time (expressed in seconds) and multiplying the result by the unit of data transfer (expressed in bytes).
Detailed explanation-4: -optical storage, electronic storage medium that uses low-power laser beams to record and retrieve digital (binary) data. In optical-storage technology, a laser beam encodes digital data onto an optical, or laser, disk in the form of tiny pits arranged in a spiral track on the disk’s surface.