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