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Digital Electronics

Digital Electronics
2's Complement of 10101011 is

 00111100
 10101011
 01010101
 10101100

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

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Digital Electronics
9’s complement of 52784630 is

 47215369
 58326479
 48225469
 57316379

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Digital Electronics
What is the minimum number of 2 input NAND gates used to perform the function of 2 input OR gate

 1
 4
 2
 3

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Digital Electronics
Which one of the following is not a vectored interrupt?

 INTR.
 TRAP.
 RST 6.5.
 RST 7.5.

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Digital Electronics
The NAND-NAND realization is equivalent to

 AND-OR realization
 NOT-OR realization
 OR-AND realization
 AND-NOT realization

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