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Digital Electronics

Digital Electronics
AND operation of (79)10 & (-56)10 is

 08H
 48H
 42H
 50H

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Digital Electronics
The binary code of (21.125)10 is

10101.01
10100.001
10100.111
10101.001

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Digital Electronics
Which of the following is 2’s complement of +12?

 00001100
 00001000
 00000011
 01110011

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

 essential prime implicants
 prime implicants
 redundent prime implicants
 selective prime implicants

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Digital Electronics
A 32 × 10 ROM contains a decoder of size

 32 × 32
 32 × 10
 10 × 32
 5 × 32

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Digital Electronics
The AND-OR realization of a combinational circuit requires three 3-input AND gates and one 3-input OR gate. This circuit can be designed using

 four input NAND gates only
 three 3-input OR gates and one 3-input AND gate
 three 3-input NAND gates and one 3-input NOR gate
None of these

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