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Digital Computer Electronics

Digital Computer Electronics
What logic function is obtained by adding an inverter to the output of an AND gate?

None of these
XOR
NAND
NOR
OR

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

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

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Digital Computer Electronics
A shift register can be used for:

parallel to serial conversion
serial to parallel conversion
All of these
None of these
digital delay line

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Digital Computer Electronics
A byte is consist of _____ bits

eight
None of these
two
ten
four

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Digital Computer Electronics
What is the 2's complement of 0011 0101 1001 1100 number?

None of these
1100 1010 1100 1011
1100 1010 1111 1111
1100 1010 0110 0100
1100 1010 0110 0011

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Digital Computer Electronics
The output of the following gate is 0 only if at least one of the inputs is 1:

NOR gate
EX-OR gate
AND gate
OR gate
None of these

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