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Digital Electronics

Digital Electronics
The NAND gate is AND gate followed by ___________.

None of these
OR gate
AND gate
NOT gate

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Digital Electronics
Which of the following operations is commutative but not associative?

 X-OR
 NAND
 AND
 OR

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Digital Electronics
For a code to be self-complementing, the sum of all its weights must be

 6
 12
 10
 9

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Digital Electronics
A 16-square eliminates

 4 variables
 2 variables
 3 variables
 8 variables

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Digital Electronics
A read only memory in which the present contents must be erased before the new information can be stored is

All of these
 PROM
 EAROM
 ROM

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Digital Electronics
A NAND gate is called a universal logic element because

Any logic function can be realized by NAND gates alone
All the minization techniques are applicable for optimum NAND gate realization
It is used by everybody
Many digital computers use NAND gates.

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