SOLUTION:
24.
The Boolean expression A+BCD represents an overall __________________ - input
__________________ gate.
two
OR
25.
Convert the Boolean expression below to a logic diagram.
A+BCD
SOLUTION:
26.
When more than one vinculum covers part of an expression, such as (AB+C) D, the
uppermost vinculum is removed first. Remember that nothing under a vinculum can be
separated until the vinculum has been removed by using the appropriate logic symbol.
The Boolean expression (AB+C) D is converted to a logic diagram as follows:
a. The expression is first identified as a two-input AND gate containing inputs (AB+C) and
D. Draw the logic AND symbol and label the inputs as shown below.
2-21
IT 0343
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