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Digital Concepts - Technical MCQs

Q1:

How many binary bits are necessary to represent 748 different numbers?

A 9

B 7

C 10

D 8

ANS:C - 10

For 8 all 1's means it is 255,
For 7 all 1's means it is 127,
For 9 all 1's mean it is 511,
For 10 all 1's means, it is 1023.

So, the answer is 10.