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Digital Electronics

Digital Electronics
The XS-3 code is a

 error-correcting code
 cyclic code
 weighted code
 self-complementing code

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Digital Electronics
The logic expression A + B can be implemented by giving inputs A and B to a two-input

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

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Digital Electronics
Consider the following multiplication: (10w1z) × (15)10 = (y01011001)2 Which one of the following gives appropriate values of w,y and z?

 w = 0,y = 0,z = 1
 w = 1,y = 1,z = 1
 w = 1,y = 1,z = 0
 w = 0,y = 1,z = 1

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Digital Electronics
In SSI, the number of gate circuits per chip is

 < 6
 < 20
 < 12
 < 25

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Digital Electronics
In which code do the successive code characters differ in only one position?

 8421 code
 Gray code
 Hamming code
 XS-3 code

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Digital Electronics
A demultiplexer is a

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

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