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Digital Electronics

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

 0 and 4
 1 and 4
 0 and 3
 1 and 3

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Digital Electronics
The output of a gate is LOW when at least one of its inputs is HIGH. This is true for

 AND
 OR
 NOR
 NAND

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Digital Electronics
A half adder is a ________ circuit.

 Sequential
 Both A and B
 None
 Combinational

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Digital Electronics
Why encoder is used in the digital electronics ?

 It is used to separate address bus and data bus
 To convert coded information into non coded form
 To convert non coded information into coded form
None of these

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

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

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Digital Electronics
10’s complement of 63325600 is

 36674400
 36774400
 366744399
 633256600

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