1. Design a circuit that returns true if a four-bit input represents the number 6, and false otherwise.
2. Design a circuit that returns true if a four-bit input represents the number 0, and false otherwise.
3. Design a circuit that returns true if an n-bit input represents the number 0, and false otherwise.
4. What is the result of the bitwise operation 0xAC & 0x0F?
5. What is the result of the bitwise operation 0xAC | 0x0F?
6. What is the result of the bitwise operation 0xAC ^ 0x0F? (The symbol ^ in this context means "Exclusive OR".)

Updated Monday, 12 January 2026, 1:07 PM