Computer Science - Automation System - Discussion

Discussion Forum : Automation System - Section 4 (Q.No. 20)

Automation System

20.

The refresh-vector CRT uses which of the following techniques?

The beam constantly travels across the screen to turn on/off a series of pixels.

Makes changes on the image by increasing the anode voltage.

Uses an electron gun to continuously flood the surface of the tube.

Creates images on the screen by scanning straight-line vectors between selected points.

None of the above

Answer: Option

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