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Digital Computer Electronics

Digital Computer Electronics
Conversion of binary number 11011001111110002 to hexadecimal number is

D9F816
D8F816
A8B916
None of these
78916

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Digital Computer Electronics
The _____ gate has two or more input signals. All inputs must be high to get a high output

NOR
NAND
None of these
AND
OR

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Digital Computer Electronics
A combinational logic circuit which is used when it is desired to send data from two or more source through a single transmission line is known as

multiplexer
demultiplexer
encoder
decoder
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

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

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Digital Computer Electronics
In boolean algebra, the overbar stands for the NOT operation, the plus sign stands for the _____ operation.

NAND
None of these
AND
NOR
OR

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Digital Computer Electronics
The reduced form of the Boolean expression (A+B)(A+C) is:

AC+B
None of these
AB+AC
A+BC
A+B+C

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