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Digital Electronics

Digital Electronics
Which of the following gate is a two-level logic gate

EXCLUSIVE OR gate
OR gate
NOT gate
NAND gate

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Digital Electronics
For checking the parity of a digital word, it is preferable to use

 AND gates
 NOR gates
 X-OR gates
 NAND gates

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Digital Electronics
A half adder is a ________ circuit.

 Both A and B
 Sequential
 None
 Combinational

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Digital Electronics
Which one of the following even parity codes are in errors. (I)100110010 (II)011101010 (III)10111111010001010

 Only (III)
 Both (II)&(III)
 Both (I)&(III)
 Only (II)

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Digital Electronics
How many output is high of NOR GATE ?

 4
 1
 3
 2

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

 11000100
 00111100
 10111100
 01111100

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