Graphics

Question 1

A graphics card has on board memory of 1MB. Which of the following modes can the card not support?

A
1600 × 400 resolution with 256 colours on a 17 inch monitor
B
1600 × 400 resolution with 16 million colours on a 14 inch monitor
C
800 × 400 resolution with 16 million colours on a 17 inch monitor
D
800 × 800 resolution with 256 colours on a 14 inch monitor
Operating-SystemsGraphicsGATE 2000
Question 1 Explanation: 
For every option we need to calculate memory.
Option A:
1600×400 = 64000 = 640 KB
256 colours 8 bits = 1 Byte
⇒ 640×1 = 640KB (we have 1MB)
Option B:
1600×400 = 640KB
16 million = 24 bits = 3 bytes
⇒ 640×3 = 1920KB (Not enough)
Option C:
800×400 = 320 KB
16 millions = 3 bytes ⇒ 320×3 = 960 KB (we have 1MB)
Option D:
800×400 = 320 KB
256 colours = 1 Byte ⇒ 320×1 = 320 (we have 1MB)
Question 2
The redundancy in images stems from:
A
pixel decorrelation
B
pixel correlation
C
pixel quantization
D
image size
Computer-OrganizationGraphicsUGC NET CS 2015 June Paper-3
Question 2 Explanation: 
The redundancy in images stems from pixel correlation
There are 2 questions to complete.

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