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Digital Electronics

Digital Electronics
For the design of a combinational circuit with four inputs using only NAND gates, the number of K-maps required for the simplification process is

 4
 1
 2
 0

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Digital Electronics
Which of the following shows the correct attachment of even parity bit to the data 00001001?

 000010011
 000010010
 100001001
 000001001

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Digital Electronics
To get an excess-3 code from BCD code

 0110 is subtracted
 0110 is added
 0011 is added
 0011 is subtracted

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

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Digital Electronics
The maximum positive and negative numbers that can be represented in one’s complement using n-bits are respectively

 +(2n-1-1),-2n-1
 +(2n-1-1),-(2n-1-1)
 None of these
 +2n-1,-(2n-1-1)

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Digital Electronics
In binary number system the first digit (bit) from right to left is called as

 MSB, Most Significant Bit
 Last Bit
 LSB, Least Significant Bit
 First Bit

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