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The smallest integer that can be represented by an 8-bit number in 2's complement form is

1. -256
2. -128
3. -127
4. 0

Correct answer: -128

Solution

In 2's complement representation, the range of an 8-bit number is from -128 to 127. The smallest integer, which is represented by setting the most significant bit to 1 (indicating a negative number) and all other bits to 0, is -128.

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