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Arithmetic Operations and Circuits - Technical MCQs

Q1:

The range of an 8-bit two's complement word is from:

A +12810 to –12810

B –12810 to +12710

C +12810 to –12710

D +12710 to –12710

ANS:B - –12810 to +12710

Here in 8 bit, 2's complement MSB is used for sign so remaining 7 bits are used.

So, that the range from 01111111(+127) to 111111111(-128) because the value 00000000 is considered as positive value.