GATE - 2004 | OS | What is the bit rate of a video terminal unit with 80 characters/line, 8

GATE - 2004 | OS | What is the bit rate of a video terminal unit with 80 characters/line, 8
Posted on 21-02-2022

GATE - 2004 [Operating System]

Question

What is the bit rate of a video terminal unit with 80 characters/line, 8 bits/character and horizontal sweep time of lOOµs (including 20 µs of retrace time)?

A

8 Mbps

B

6.4 Mbps

C

0.8 Mbps

D

0.64 Mbps

    

Solution:

Option (B) is Correct.

Horizontal sweep time = 100µs


Total number of bits transmitted = 80 * 8 = 640 bits


Bit rate = (640 * 106)/100 = 6.4 Mbps

Thank You

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