Question Detail

COS 102 test topic Objective Question

Question

What is the decimal value of the two's complement binary number `10000000_2` represented in an 8-bit system?
Options
A -128
Correct Answer
B -0
C +128
D -127
Correct Answer

Option A is the correct answer.

Detailed Explanation

The pattern 1 followed by all zeros represents the minimum representable negative value in two's complement, which is -128.

Hint

No hint available

Question Info