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Digital Electronics

Digital Electronics
The number of 1 in 8-bit representation of 127 in 2’s complement form is m and that in 1,s complement form is n. What is the value of m:n?

 1:1
 2:3
 2:1
 1:2

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Digital Electronics
A bubbled AND gate is equivalent to a

 NAND gate
 OR gate
 NOR gate
 X-OR gate

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Digital Electronics
When will be the output of a NOT gate is LOW ?

None of these
 the input is HIGH and LOW.
 the input is LOW.
 the input is HIGH.

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Digital Electronics
Transfer of data from one register to another register is known as ________ register operation.

 In between
 Intra
 Inside
 Inter

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Digital Electronics
The number of Boolean functions that can be generated by n variables is equal to

2n-1
2n
2n
22n

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Digital Electronics
How many input and output required for multiplexer ?

 One input and one output
None of these
 Many input and one output
 One input and many output

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