M

Mr. Dubey • 100.28K Points
Coach Computer

Q. Laser Jet printer speeds are measured in pages per minute (ppm) what do we use to measure dot-matrix printers?

  • (A) lines per inch
  • (B) lines per sheet
  • (C) characters per inch
  • (D) characters per second
  • Correct Answer - Option(D)
  • Views: 142
  • Filed under category Computer
Explanation by: Mr. Dubey

Dot-matrix printers are impact printers that print by striking an ink-soaked ribbon against the paper. Their speed is typically measured in characters per second (cps), reflecting how many individual characters they can print each second.

  • (A) Lines per inch refers to resolution or spacing, not speed.
  • (B) Lines per sheet is not a standard measurement.
  • (C) Characters per inch refers to density or resolution, not speed.

Therefore, (D) characters per second is the correct unit to measure dot-matrix printer speed.

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