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Digital Electronics

Digital Electronics
Which of the following is not a transmission medium?

  Modem.
 Telephone lines.
 Coaxial cables.
 Microwave systems.

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

 4
 8
 12
 16

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Digital Electronics
The output of a NOR gate is high

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

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Digital Electronics
A full adder has

 2 inputs, 2 outputs
 3 inputs, 2 outputs
 3 inputs, 1 output
 2 inputs, 1 output

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Digital Electronics
Which one of the following is an invalid state in 8-4-2-1 binary coded decimal counter

 1000
 1100
 0011
 1001

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Digital Electronics
LSI means

 Large Scale Invertor
 Large Symbol Integration
 Large Symbol Invertor
 Large Scale Integration

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