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Digital Electronics

Digital Electronics
The number of 1 in 8-bit representation of 127 in 2’s complement form is m and that in 1,s complement form is n. What is the value of m:n?

 2:1
 1:2
 1:1
 2:3

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Digital Electronics
Unit distance code is the other name of

 cyclic code
 self-complementing code
 sequential code
 XS-3 code

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Digital Electronics
A half adder is a ________ circuit.

 Combinational
 Sequential
 None
 Both A and B

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Digital Electronics
Storage of 1 KB means the following number of bytes

964
1000
1024
1064

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Digital Electronics
Which of the following is a digital device

 Microphone
 Light switch
 Resistance of a material
 Regulator of a fan

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Digital Electronics
X = 01110 and Y = 11001 are two 5-bit binary numbers represented in 2’s complement format. The sum of X and Y in 2’s complement format using 6 bits is

 001000
 101001
 0001111
 100111

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