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Digital Electronics

Digital Electronics
A gate is disabled when its disable input is at logic 0. The gate is

 none of these
 AND
 NOR
 OR

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Digital Electronics
In Boolean algebra, the bar sign (-) indicates ___________.

OR operation
NOT operation
AND operation
None of these

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Digital Electronics
X' AND X' will result

 1
 X power 2
 0
 X

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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 (iii)
 (i) and (ii)
 (iii) and (iv)

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Digital Electronics
(44)8 in BCD 8421 code is

 00110110
 01000100
 00100100
 01100011

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

None of these
 1 MHz
 1 kHz
 1 mHz

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