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Question 120Asked in DSSSB TGT Computer Science, 25 Jun 2023, Shift 1 (8:30 AM)

Which of the following displays uses an electron beam that operates like a pencil to create a line image on the CRT screen?

  1. ARotate Scan
  2. BRoster Scan
  3. CRandom Scan
  4. DRaster Scan
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Correct answer: (C) Random Scan

Explanation

A random-scan (vector) display moves the electron beam like a pencil, drawing only the lines of the picture. Raster scan sweeps the whole screen row by row.

From DSSSB TGT Computer Science PYQ, 25 Jun 2023, Shift 1 (8:30 AM)

This is question 120 of DSSSB TGT Computer Science PYQ, 25 Jun 2023, Shift 1 (8:30 AM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.