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Digital Concepts

Q1: ________ is the highest-value seven-bit binary number.

A 128

B 127

C 126

D 125

ANS:B - 127

Any N digit number using base B can have B^N possible values (B to the power of N). Since 0 is a possible value, the largest value possible is (B^N) - 1.

Plugging in your values... 2^7 - 1 = 128-1 = 127.



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