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Digital Electronics

Digital Electronics
A demultiplexer is a

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

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Digital Electronics
Which of the following is known as a mod-2 adder?

 NAND gate
 X-OR gate
 X-NOR gate
 NOR gate

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

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

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Digital Electronics
AND-OR realization of a combinational circuit is equivalent to

 NAND-NAND realization
 NOR-NOR realization
 NAND-NOR realization
 NOR-NAND realization

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Digital Electronics
How many NOR gates are required to obtain AND operation?

 1
 2
 3
 4

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Digital Electronics
Which of these circuits will give yield carry with more delay 1. Carry look ahead adder 2. Ripple carry adder

 1.
 2.
 both are same
 none

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