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Digital Electronics

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

 6
 10
 9
 12

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Digital Electronics
What is the minimum number of 2 input NAND gates used to perform the function of 2 input OR gate

 2
 3
 4
 1

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Digital Electronics
An 8 × 4 ROM contains a decoder of size

 8 × 8
 3 × 8
 3 × 4
 8 × 4

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Digital Electronics
The implicants which will definitely occur in the final expression are called

 selective prime implicants
 essential prime implicants
 prime implicants
 redundent prime implicants

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Digital Electronics
Which of the following is 1’s complement representation of +57

 00000001
 01000110
 11000110
 00111001

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Digital Electronics
A bubbled OR gate is equivalent to a

 X-OR gate
 NOR gate
 NAND gate
 AND gate

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