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Digital Arithmetic Operations and Circuits

Q1:

The range of positive numbers when using an eight-bit two's-complement system is:

A 0 to 64

B 0 to 100

C 0 to 127

D 0 to 256

ANS:C - 0 to 127

For 2's complement range from,

(-2^(n-1)) ...to.... (+2^(n-1)-1)....where n = 8.
I will get range -128 to + 127....i.e.0-127.



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