Digital Electronics - Number Systems and Codes - Discussion

Discussion Forum : Number Systems and Codes - General Questions (Q.No. 55)
55.
Determine the decimal equivalent of the signed binary number 11110100 in 1's complement.
116
–12
11
128
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
13 comments Page 2 of 2.

Mael said:   6 years ago
Can somebody please explain how to solve using 1's complement in detail?

Venugogula said:   4 years ago
In question, they have said that it is a signed number so no need to search for a sign as we know that sign bit is placed as MOST SIGNIFICANT BIT so just reverse bits 0 to 1 and 1 to 0 or just subtract the whole binary bit with all 1's then you will get 00001011 whose value is 11.

Since the MSB is 0 given decimal equivalent is positive.
(2)

Arya A said:   2 months ago
The MSB (Most Significant Bit) is 1, so this is a negative number in 1’s complement. , 11110100 (in 1’s complement) = -11 (decimal).


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