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Digital Computer Electronics

Digital Computer Electronics
In boolean algebra, the overbar stands for the NOT operation, the plus sign stands for the _____ operation.

OR
NOR
None of these
AND
NAND

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Digital Computer Electronics
The term sum-of-products in boolean algebra means

The OR function of several AND functions
The AND function of several OR functions
The AND function of several AND functions
The OR function of several OR functions
None of these

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Digital Computer Electronics
The functional difference between SR flip-flop and JK flip-flop is that

None of these
JK flip-flop is faster than SR flip-flop
JK flip-flop has a feed back path
JK flip-flop accepts both inputs 1
JK flip-flop does not require external clock

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Digital Computer Electronics
Which of the following is not functionally a complete set?

None of these
AND, OR, NOT
NOR
AND, OR
NAND

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Digital Computer Electronics
For an input pulse train of clock period T, the delay produced by an n stage shift register is

None of these
(n+l)T
(n-l)T
nT
2nT

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Digital Computer Electronics
What logic function is obtained by adding an inverter to the inputs of an AND gate?

NAND
OR
None of these
XOR
NOR

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