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Digital Electronics

Digital Electronics
The number of rows in the truth table of a 4-input gate is

 8
 4
 16
 12

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Digital Electronics
For 4 bit parallel addition, we need ________ half adder(s) and ________ full adder(s)

 0 and 3
 1 and 3
 0 and 4
 1 and 4

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Digital Electronics
At which the digital data can be applied to a a gate is known as ________ frequency.

 Operating
 Truth
 Run-time
 Propagation

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Digital Electronics
Excess-3 code is known as

Weighted code
Algebraic code
Self-complementing code
Cyclic redundancy code

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Digital Electronics
A gate is inhibited when its inhibit input is at logic 1. The gate is

 none of these
 NAND
 OR
 AND

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Digital Electronics
In which of the following codes do the successive characters differ in only 1-bit position?

 8421 code
 binary code
 2421 code
 cyclic code

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