18.
The Boolean expression (B+IR) D represents an overall _________________ - input
_________________ gate.
two
AND
19.
Convert the Boolean expression below to a logic diagram.
(B+IR) D
SOLUTION
20.
When converting a Boolean expression to a logic diagram, pay particular attention to the
signs of grouping; i.e., parentheses, brackets, braces, vincula, etc. Never separate factors
within a group until that group has been separated from the rest of the expression. With
this in mind, the Boolean expression (R+S) T+V is systematically converted to a logic
diagram as follows:
Step 1. Identify the overall type of circuit.
a. (R+S) T + V-this signifies a two-input OR gate.
b. The logic Or-gate symbol with two inputs is shown below.
2-17
IT 0343
Previous Page
