555555555542. A NAND gate has: (a) LOW inputs and a LOW output (b) HIGH inputs and a HIGH output (c) LOW inputs and a HIGH output (d) None of the these
5555555555110. If the output of a three-input AND gate must be a logic LOW, what must the condition of the inputs be? (a) All inputs must be LOW. (b) All inputs must be HIGH. (c) At least one input must be LOW. (d) At least one input must be HIGH.
555555555580. The output of an exclusive-OR gate is HIGH if ________. (a) all inputs are LOW (b) all inputs are HIGH (c) the inputs are unequal (d) none of the above