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Digital Computer Electronics

Digital Computer Electronics
A positive AND gate is also a negative

OR gate
NAND gate
None of these
NOR gate
AND gate

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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
decay time
binary level transition period
None of these
propagation delay

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Digital Computer Electronics
The highest decimal number that can be represented with 10 binary digits is

512
All of these
None of these
1023
1024

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Digital Computer Electronics
Conversion of binary number 11000112 to hexadecimal is

None of these
4616
5716
6316
4016

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Digital Computer Electronics
The simplified form of the Boolean expression (X + Y + XY)(X + Z) is

X + YZ
XZ + Y
None of these
XY + YZ
X + Y + Z

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Digital Computer Electronics
In which of the following adder circuits, the carry look ripple delay is eliminated?

Full adder
None of these
Carry-look-ahead adder
Half adder
Parallel adder

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