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What defines the time taken to position the sector on the platter under the read/write head?

What defines the time taken to position the sector on the platter under the read/write head?

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A.
Rotational delay

B.
Seek time

C.
Response time

D.
Data transfer rate

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10 Comments on “What defines the time taken to position the sector on the platter under the read/write head?

      1. random says:

        nope it’s B, rotational delay is the time it takes the platter to do a full rotation back to the r/w head, seek time is the time it takes to move the r/w head to the correct sector.




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        1. Cant READ says:

          Documentation

          the actuator arm moves the R/W head over the platter to a particular track while
          the platter spins to position the requested sector under the R/W head.
          The time taken by the platter to rotate and position the data under the R/W head is called rotational latency

          The seek time (also called access time) describes the time taken to position the R/W heads across the platter with a radial movement (moving along the radius of the platter).
          In other words, it is the time taken to position and settle the arm and the head over the correct track.
          ———–

          TLDR
          Key word — Sector & Platter = Rotational delay (Latency)
          (NOT TRACK & PLATTER = Seek Time)




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  1. Kirill says:

    It’s A. 100% – A
    Seek time – describes the time taken to position the r\w heads accross the platter with a radial movement.
    Rotational delay – time taken by the platter to rotate and position the data under r\w head




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