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What is The capacity of 3.5 inch floppy disk?

  • A.1.40 MB
  • B.1.44 GB
  • C.1.40 GB
  • D.1.44 MB

Answer: D

Correct answer: 1.44 MB

The 3.5-inch high-density diskette holds 1.44 MB: 80 tracks a side, two sides, 18 sectors per track and 512 bytes per sector, giving \[ 80 \times 2 \times 18 \times 512 = 1{,}474{,}560 \text{ bytes} \] which is 1440 KB, quoted as 1.44 MB.

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