Multiple choice

A floppy disk's read/write head uses a(n) __ to read and write data on a disk.

  1. tape drive

  2. pit

  3. electromagnet

  4. laser

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Floppy disks and hard drives use magnetic storage technology, where the read/write head contains an electromagnet. This magnet changes the polarity of magnetic particles on the disk surface to represent binary data. Optical drives, by contrast, use lasers to read pits and lands.