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Digital Electronics

Digital Electronics
An any or all gate is the other name of

 X-NOR gate
 AND gate
 OR gate
 X-OR gate

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Digital Electronics
A demultiplexer is a

 1-to-1 device
 1-to-N device
 N-to-N device
 N-to-1 device

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Digital Electronics
What is the minimum number of two-input NAND gates used to perform the function of 2-input OR gate?

 one
 four
 two
 three

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Digital Electronics
2-out-of-5 code is

 self-complementing code
 weighted code
 non-weighted code
 alphanumeric code

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Digital Electronics
What is the Boolean expression for a two-input AND gate ?

 A + B
 A.B
 A & B
 A - B

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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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