The following data refer to a hard disk: Number of tracks per side = 600…

2013

The following data refer to a hard disk: Number of tracks per side = 600 Number of sides = 2 Number of bytes per sector = 512 Storage capacity (in bytes) = 21,504,000 Determine the number of sectors per track for this hard disk.

  1. A.

    35

  2. B.

    40

  3. C.

    45

  4. D.

    50

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Correct answer: A

Formula: sectors per track = total capacity ÷ (number of sides × tracks per side × bytes per sector)

  1. Substitute the given values: total capacity = 21,504,000 bytes; number of sides = 2; tracks per side = 600; bytes per sector = 512.

  2. Compute the denominator: 2 × 600 × 512 = 614,400.

  3. Divide to find sectors per track: 21,504,000 ÷ 614,400 = 35.

  4. Therefore the number of sectors per track is 35.

  5. Quick check: 2 × 600 × 512 × 35 = 21,504,000, which matches the given capacity.

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