1's complement operation: What is the 1's complement of the binary number 11100110?

Introduction / Context:
One's complement is an earlier method of representing signed numbers. It is also a useful digital operation for bit manipulation, where each bit is inverted. This question reinforces knowledge of bitwise inversion.

Given Data / Assumptions:

• Binary input: 11100110.
• Word length: 8 bits.

Concept / Approach:
1's complement means flipping every bit: 1→0 and 0→1. This gives the bitwise NOT of the binary number.

Step-by-Step Solution:

Verification / Alternative check:
Check bit counts: original has 5 ones, complement has 3 ones. Together, all 8 bits covered.

Why Other Options Are Wrong:

Common Pitfalls:

Final Answer: