176. The logic gate that will have HIGH or “1” at its output when any one of its inputs is HIGH is a(n):
(a) NOR gate
(b) OR gate
(c) AND gate
(d) NOT operation
177. Which of the following equations would accurately describe a 4-input OR gate when A = 1, B = 1, C = 0, and D = 0?
(a) 1 + 1 + 0 + 0 = 1
(b) 1 + 1 + 0 + 0 = 01
(c) 1 + 1 + 0 + 0 = 0
(d) 1 + 1 + 0 + 0 = 00
178. A NAND gate has:
(a) active-LOW inputs and an active-HIGH output.
(b) active-LOW inputs and an active-LOW output.
(c) active-HIGH inputs and an active-HIGH output.
(d) active-HIGH inputs and an active-LOW output.
179. Which timing diagram shown below is correct for an inverter?
(a) a
(b) b
(c) c
(d) d
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