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Digital Electronics

Digital Electronics
The number of parity bits in a 12-bit Hamming code is

 5
 6
 8
 4

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Digital Electronics
The output of a gate is LOW if and only if all its inputs are HIGH. It is true for

 NAND
 AND
 X-NOR
 NOR

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Digital Electronics
Digital computers are more widely used as compared to analog computers, because they are

Useful over wider ranges of problem types
Easier to maintain
Always more accurate and faster
Less expensive

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Digital Electronics
A gate is enabled when its enable input is at logic 0. The gate is

 NOR
 none of these
 NAND
 AND

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Digital Electronics
Which one of the following is 2’s complement of -68?

 11000100
 01111100
 10111100
 00111100

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Digital Electronics
A half adder is a ________ circuit.

 Both A and B
 Sequential
 Combinational
 None

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