Question

Define raster scan and random scan display

Answer 1

Random Scan (Vector Scan) In this technique, the electron beam is directed only to the part of the screen where the picture is to be drawn rather than scanning from left to right and top to bottom as in raster scan. It is also called vector display, stroke-writing display, or calligraphic display.

Answer 2

Explanation:

the raster scan monitors make use of the whole screen for displaying the object while in random screen monitors the certain part of the screen is used where the electron beam is projected. Resolution of random scan displays is better than raster scan.