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Digital Computer Electronics

Digital Computer Electronics
A half-adder is also known as:

None of these
AND circuit
NOR circuit
NAND circuit
EX-OR circuit

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

All of these
None of these
AF
9E
8C

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

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

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Digital Computer Electronics
The 1's compliment of binary number 11010 is:

101
10
110
None of these
11101

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

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

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Digital Computer Electronics
The functional capacity of SSI devices is

more than 10,000 gates
100 to 10,000 gates
12 to 99 gates
None of these
1 to 11 gates

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