COMPUTER HARDWARE COMPONENTS FUNCTIONS
WHAT IS A HARD DRIVE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Seek time is the time required to move the disk arm to the required track. Rotational delay or latency is the time it takes for the beginning of the required sector to reach the head. Sum of seek time (if any) and latency is the access time.
Detailed explanation-2: -effective access time = hit time0 + miss rate0 * (hit time1 + miss rate1 * (hit time2 + miss rate2 * miss penalty2))
Detailed explanation-3: -The average seek time is defined as the sum of all single track seek times plus the sum of two track seek times and so on…, divided by the sum of all possible seeks. Typical average seek times for disks are in the range 8–20 milliseconds.
Detailed explanation-4: -Access time is the amount of time that passes between a request for data and when the data is provided. There are many other terms that refer to access time such as memory latency and seek time.