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Digital Computer Electronics

Digital Computer Electronics
In boolean algebra, the times sign stands for the _____ operation

None of these
OR
NAND
NOR
AND

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Digital Computer Electronics
Conversion of binary number 1011012 to hexadecimal is

20000000000000000
2716
None of these
3716
2D16

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Digital Computer Electronics
What does 4k represent?

400
4000
40
4096
None of these

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Digital Computer Electronics
De Morgan's second therm says that NAND gate is equivalent to a bubbled _____ gate.

AND
XAND
OR
XOR
None of these

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Digital Computer Electronics
The time required for a pulse to decrease from 90 to 10 percent of its maximum value is known as

rise time
None of these
decay time
propagation delay
binary level transition period

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

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

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