6. (1) d.
7. What function is present when each of the following switches is
(2) c.
open?
(3) b.
a.
d.
(4) a.
b.
e.
(5) e.
c.
f.
8. State the two reasons for using Boolean algebra with digital-
computer electronic switching circuits.
(1)
(2)
9. A switching network may contain a number of switches
represented by the same variable. When the function of a
variable is present, the function is present for every switch
represented by that same variable. For example:
The switching network above contains two switches represented
by variable A. When function A is present, both switches
represented by variable A will be closed.
IT 0346
1-6
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