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Digital Computer Electronics

Digital Computer Electronics
Multiplication of 1112 by 1012 is

None of these
1100112
1012
1000112
1111002

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Digital Computer Electronics
What is the hexadecimal equivalent of a binary number 10101111

None of these
8C
All of these
9E
AF

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Digital Computer Electronics
Which of the following boolean algebra statements represent commutative law

A+BB+A
None of these
(B+C)(A.B)+(A.C)
A+AA
(A+B)+CA+(B+C)

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Digital Computer Electronics
Addition of 11012 and 10102 is

101012
110112
110002
None of these
101112

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Digital Computer Electronics
The EXCLUSIVE - NOR gate is equivalent to an _____ gate followed by an invertor.

OR
None of these
AND
NAND
XOR

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Digital Computer Electronics
Consider as RS flip-flops with both inputs set to 0. If a momentary '1' is applied at the input S, then the output

Q will flip from 0 to 1
Q will flip from 0 to 1
Q will flip from 0 to 1 and then back to 0
Q will flip from 0 to 1 and then back to 0
None of these

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