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.Management Sciences
Category: Digital Electronics
The number of Boolean functions that can be generated by n variables is equal to_________________?
0
A. 2n
B. 22 n
C. 2n-1
D. — 2n
In Boolean algebra, the bar sign (-) indicates__________________?
A. OR operation
B. AND operation
C. NOT operation
D. None of the above
Digital computers are more widely used as compared to analog computers, because they are______________?
A. less expensive
B. always more accurate and faster
C. useful over wider ranges of problem types
D. easier to maintain
Positive logic in a logic circuit is one in which______________?
A. logic 0 and 1 are represented by 0 and positive voltage respectively
B. logic 0 and, -1 are represented by negative and positive voltages respectively
C. logic 0 voltage level is higher than logic 1 voltage level
D. logic 0 voltage level is lower than logic 1 voltage level
The NAND gate is AND gate followed by_________________?
A. NOT gate
B. OR gate
C. AND gate
D. None of the above
The only function of NOT gate is to__________________?
A. Stop signal
B. Invert input signal
C. Act as a universal gate
D. None of the above
In which of the following base systems is 123 not a valid number ?
A. Base 10
B. Base 16
C. Base8
D. Base 3
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