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Computing

Computing · Quick practice · answer shown after each question

Logic

Question 1 of 10

Question 1 of 10

By De Morgan's law, NOT(A AND B) equals

Question 2 of 10

Question 2 of 10

The Boolean expression for an OR gate with inputs A and B is

Question 3 of 10

Question 3 of 10

The expression (A + B)·(A + C) simplifies to

Question 4 of 10

Question 4 of 10

A NOT gate with an input of 1 gives an output of

Question 5 of 10

Question 5 of 10

What is the output of an XOR gate when both inputs are 1?

Question 6 of 10

Question 6 of 10

The XOR gate outputs 1 when

Question 7 of 10

Question 7 of 10

An AND gate gives an output of 1 only when

Question 8 of 10

Question 8 of 10

A half adder produces a sum and carry using

Question 9 of 10

Question 9 of 10

The Boolean expression for an AND gate with inputs A and B is

Question 10 of 10

Question 10 of 10

What is the output of a NOR gate when both inputs are 0?

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.