Discussion
The decimal equivalent of 8 DH in sign magnitude form is :
Answer: B
The decimal equivalent is -13.
8D in hexadecimal is the 8-bit pattern 1000 1101. In sign-magnitude form the most significant bit is the sign and the remaining seven bits are the magnitude:
- Sign bit 1: the number is negative.
- Magnitude 000 1101 = 8 + 4 + 1 = 13.
So the value is -13. Reading the pattern as unsigned gives 141, and dropping the sign gives 13, the first distractor. Reading it in two's complement would give -115, so the -11 and 11 options correspond to no standard reading of 8D.
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