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Digital Electronics

Digital Electronics
A demultiplexer is a

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

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Digital Electronics
Most of the digital computers do not have floating point hardware because

Floating point hardware is costly
It is slower than software
It is not possible to perform floating point addition by hardware
Of no specific reason

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Digital Electronics
A bubbled NAND gate is equivalent to a

 OR gate
 NAND gate
 NOR gate
 X-OR gate

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Digital Electronics
In decimal number system what is MSD

 Middle digit
 First digit from right to left
 First digit from left to right
 Mean of all digits

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Digital Electronics
The number A = 01110000 and B = 10101111 are in 2’s complement form .Addition of above two number is

 00011111
 10101111
 11100000
 011100001

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Digital Electronics
The output of a NOR gate is high

 only when at least one input is high
 only when at least one input is low
 only when all the inputs are high
 only when all the inputs are low

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