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Digital Electronics

Digital Electronics
The universal gate is ___________

AND gate
OR gate
NAND gate
None of these

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Digital Electronics
A device which converts 2421 code into 8421code is called a

 code converter
 code encoder
 coder
 code decoder

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Digital Electronics
The NAND-NAND realization is equivalent to

 AND-OR realization
 OR-AND realization
 AND-NOT realization
 NOT-OR realization

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Digital Electronics
F’s complement of (2BFD)Hex is

 D403
 E304
 D402
 C403

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

 1100
 0011
 1000
 1001

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Digital Electronics
An exclusive NOR gate is logically equivalent to

 X-OR gate followed by an inverter
 inverter followed by an X-OR gate
 complement of a NOR gate
 NOT gate followed by a NOR gate

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