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Digital Electronics

Digital Electronics
What is the minimum number of NOR gates required realizing an X-OR gating?

 3
 4
 6
 5

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Digital Electronics
The following code is not a BCD code.

 8421 code
 XS-3 code
 all of these
 Gray code

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Digital Electronics
A hexadecimal odometer displays F 52 F. The next reading will be

F52E
F53O
G52F
F53F

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Digital Electronics
Excess-3 code is known as

Algebraic code
Cyclic redundancy code
Weighted code
Self-complementing code

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Digital Electronics
The XS-3 code is a

 weighted code
 self-complementing code
 error-correcting code
 cyclic code

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Digital Electronics
The output of a NOR gate is high

 only when all the inputs are high
 only when all the inputs are low
 only when at least one input is high
 only when at least one input is low

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