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Digital Electronics

Digital Electronics
2-out-of-5 code is

 alphanumeric code
 self-complementing code
 weighted code
 non-weighted code

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Digital Electronics
A small circle or dot on top of an IC represents

 Pin13
 Pin14
 Pin2
 Pin1

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Digital Electronics
The Quine– McClusky method of minimization of a logic expression is a (i) graphical method (ii) algebraic method (iii) tabular method (iv) a computer-oriented algorithm The correct answers are

 (i) and (ii)
 (i) and (iii)
 (iii) and (iv)
 (ii) and (iv)

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Digital Electronics
X' AND X' will result

 X
 X power 2
 1
 0

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Digital Electronics
To add two m-bit numbers, the required number of half adder is

 2m-1
 2m-1
 2m
 2m+1

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Digital Electronics
A device which converts 2421 code into 8421code is called a

 code decoder
 code encoder
 code converter
 coder

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