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Digital Electronics

Digital Electronics
The output of a gate is LOW if and only if all its inputs are HIGH. It is true for

 AND
 NAND
 NOR
 X-NOR

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

 In between
 Inside
 Inter
 Intra

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Digital Electronics
The NOR-NOR realization is equivalent to

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

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Digital Electronics
The 2s complement of 17 is

 111110.
 110001.
 101110.
  101111.

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Digital Electronics
The voltage levels for negative logic system

 may be negative or positive
 must necessarily be positive
 must necessarily be 0 V and –5 V
 must necessarily be negative

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Digital Electronics
Which of the following BCD codes with an odd parity bit included in the end of code group, have error in the code? (I)1001010110000 (II)0100011101100 (III)0111110000011 (IV)1000011000101

 Only (II)
 Both (I) & (II)
 Both (II)&(III)
 Both (I)&(IV)

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