What type of logic gate is indicated by the truth table shown in figure "A" the illustration? See illustration EL-0072.
• Review how an AND gate and an OR gate behave when only one input is 1. • Compare the truth table in figure "A" with the standard tables for AND, OR, NOR, and NAND gates. • Remember that NOR and NAND are just the opposite (inverted outputs) of OR and AND.
• When either A or B is 1 by itself (but not both), what does the output in table A show? • For which basic logic gate is the output 1 only under one specific input condition shown in the table? • If you inverted every output (changed 0s to 1s and 1s to 0s), which type of gate would that correspond to?
• Check carefully what the output is when A = 1, B = 0 and when A = 0, B = 1 in table A. • Confirm under which input condition(s) the output becomes 1 in table A. • Verify whether that behavior matches the definition of OR, AND, NOR, or NAND from your reference sheet.
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