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Digital Electronics

Digital Electronics
The main criterion in the design of a digital circuit is reduction of

 weight
 cost
 size
 volume

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Digital Electronics
(44)8 in BCD 8421 code is

 00110110
 01100011
 01000100
 00100100

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Digital Electronics
In Boolean algebra, OR is represented by

 -
 /
 ×
 +

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Digital Electronics
Which of the following gates is known as a coincidence detector?

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

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Digital Electronics
The only function of NOT gate is to ___________.

Act as a universal gate
Invert input signal
Stop signal
None of these

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Digital Electronics
The maximum positive and negative numbers which can be represented in two’s complement form using n bits are respectively,

 +(2n-1-1),-2n-1
 +(2n-1-1),-(2n-1-1)
 +2n-1,-(2n-1+1)
 +2n-1,-2n-1

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