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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.

AND
NOR
None of these
NAND
OR

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Digital Computer Electronics
The output of the following gate is 0 only if at least one of the inputs is 1:

NOR gate
EX-OR gate
OR gate
AND gate
None of these

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Digital Computer Electronics
Parallel adders are

combinational logic circuits
None of these
All of these
sequential logic circuits
both of the above

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Digital Computer Electronics
With an RS latch a high S and low R sets the output to _____ ; a low S and a high R _____ the output to low.

set, reset
No change, set
None of these
Race, high
high, reset

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Digital Computer Electronics
A NOR gate recognizes only the input word whose bits are _____

0's or 1's
0's
0's and 1's
None of these
1's

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Digital Computer Electronics
The number of binary bits required to represent a hexadecimal digit is

8
None of these
6
4
3

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