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Digital Electronics

Digital Electronics
Which of the following codes is known as the 8421 code?

 BCD code
 Gray code
 XS-3 code
 ASCII code

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Digital Electronics
The number of rows in the truth table of a 4-input gate is

 12
 8
 4
 16

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Digital Electronics
Excess-3 code is known as

Algebraic code
Self-complementing code
Cyclic redundancy code
Weighted code

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Digital Electronics
The binary equivalent of hexadecimal number 4F2D is

 0101 1111 0010 1100
 0100 1111 0010 1100
 0100 1111 0010 1101
 0100 1110 0010 1101

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Digital Electronics
The universal gate is ___________

None of these
OR gate
AND gate
NAND gate

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Digital Electronics
What logic function is produced by adding inverters to the inputs of an AND gate?

 NOR
 X-OR
 OR
 NAND

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