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Digital Electronics

Digital Electronics
A + Ā is equal to

 Ā
 1
 0
 A

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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

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

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Digital Electronics
Maximum number in decimal that can be represented by 4 bits (binary) is

 4
 7
 15
 16

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Digital Electronics
If clock time period is 1ms, what is its frequency

 1 mHz
None of these
 1 kHz
 1 MHz

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Digital Electronics
Which of the following is a digital device

 Regulator of a fan
 Microphone
 Resistance of a material
 Light switch

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Digital Electronics
The XS-3 code is a

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

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