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Digital Electronics

Digital Electronics
How many numbers are used in the decimal number system?

 0 to 9
 1 to 10
 0 to 10
None of these

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Digital Electronics
11001, 1001 and 111001 correspond to the 2’scomplement representation of the following set of numbers

 25, 9 and 57 respectively
 -25, -9 and -57 respectively
 -6, -6 and -6 respectively
 -7, -7 and -7 respectively

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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)
 (iii) and (iv)
 (i) and (ii)

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Digital Electronics
How many NOR gates are required to obtain AND operation?

 2
 1
 4
 3

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

 Pin2
 Pin1
 Pin14
 Pin13

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Digital Electronics
Minimization of logical expressions while designing digital systems helps in reducing

 power requirements
All of these
 cost
 space requirements

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