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Digital Computer Electronics

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

NAND
OR
None of these
NOR
XOR

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

XAND
None of these
AND
XOR
OR

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Digital Computer Electronics
An AND gate has 7 inputs, what is the only input word that produces a 1 output?

1111111
1111
None of these
1110000

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Digital Computer Electronics
A demultiplexer is also known as

encoder
data selector
data distributor
multiplexer
None of these

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Digital Computer Electronics
The m-bit parallel adder consists of:

(m+1) full adders
m/2 full adders
None of these
m full adders
m-1 full adders

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Digital Computer Electronics
Arithmetic operation are coded in

Input/Outpur(I/0)
Terminal symbols
Processing symbols
Decision symbols
None of these

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