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Digital Electronics

Digital Electronics
The most suitable gate to check whether the number of 1s in a digital word is even or odd is

 AND, OR, and NOT
 X-OR
 NOR
 NAND

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Digital Electronics
A 15-bit Hamming code requires

 none of these.
 5 parity bits
 4 parity bits
 15 parity bits

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Digital Electronics
In the boolean algebra, a variable has ________ different state(s)/value(s).

 2
 3
 4
 1

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Digital Electronics
When will be the output of a NOT gate is LOW ?

 the input is HIGH.
 the input is LOW.
 the input is HIGH and LOW.
None of these

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Digital Electronics
Which of the following gates is known as a coincidence detector?

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

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Digital Electronics
Convert the binary number (1111000011110000) to hexadecimal number

 7070
 5050
 1010
 F0F0

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