Multiple choice

Cathode Ray Tube is found in

  1. CPU

  2. Printer

  3. Monitor

  4. Scanner

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

CRT (Cathode Ray Tube) is a display technology used in traditional monitors and TVs. It uses vacuum tubes to display images by firing electrons at a phosphorescent screen. CPUs are processors. Printers produce paper output. Scanners digitize documents.