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Digital Electronics

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

 1.
 none
 2.
 both are same

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Digital Electronics
Truth table is used to express

 Boolean matrix
 Boolean map
 Boolean addition
 Boolean expression

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

 0 and 3
 1 and 4
 0 and 4
 1 and 3

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Digital Electronics
The momentary change in the output/state of the flip-flops is known as

 unstable state
 tri-state
 trigger
 inverter

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Digital Electronics
In Boolean algebra, OR is represented by

 +
 ×
 -
 /

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Digital Electronics
The hex address of the 256th memory location is

 001FF
 00FFF
 000FF
 00100

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