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Digital Electronics

Digital Electronics
The logic expression A + B can be implemented by giving inputs A and B to a two-input

 X-OR gate
 NAND gate
 NOR gate
 X-NOR gate

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Digital Electronics
For 4 bit parallel addition, we need ________ half adder(s) and ________ full adder(s)

 1 and 3
 0 and 3
 1 and 4
 0 and 4

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Digital Electronics
Which one of the following is 2’s complement of -68?

 10111100
 11000100
 00111100
 01111100

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Digital Electronics
Each term in the standard POS form is called a

 literal
 don’t care
 minterm
 maxterm

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Digital Electronics
Which of the following is a self-complementing code?

 Hamming code
 cyclic code
 Gray code
 XS-3 code

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Digital Electronics
Extremely low power dissipation per gate can be gained from

 MOS ICs
 TTL ICs
 ECL ICs
 CMOS ICs

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