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Digital Electronics

Digital Electronics
The number of cells in a 6 variable K-map is

 64
 36
 6
 12

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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
It is used by everybody
All the minization techniques are applicable for optimum NAND gate realization
Many digital computers use NAND gates.

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Digital Electronics
The number of Boolean functions that can be generated by n variables is equal to

2n
2n
22n
2n-1

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Digital Electronics
A half adder has

 1 input and 1 output
 2 inputs and 1 outputs
 1 input and 2 outputs
 2 inputs and 2 output

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Digital Electronics
Maximum number in decimal that can be represented by 4 bits (binary) is

 7
 4
 16
 15

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Digital Electronics
Truth table is used to express

 Boolean addition
 Boolean map
 Boolean matrix
 Boolean expression

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