Multiple choice

The speed of a dot matrix printer is measured in

  1. dpi

  2. cps

  3. PPM

  4. none of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dot matrix printers are impact printers that create characters one at a time, so their speed is measured in characters per second (cps). In contrast, laser printers are measured in pages per minute (ppm) because they process entire pages at once. Dpi (dots per inch) is a measure of resolution, not speed.

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