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Digital Computer Electronics

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

OR
None of these
NAND
XOR
NOR

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Digital Computer Electronics
The term sum-of-products in boolean algebra means

The OR function of several OR functions
The OR function of several AND functions
The AND function of several OR functions
The AND function of several AND functions
None of these

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Digital Computer Electronics
Cyclic codes are used in

continuously varying signal representation
arithmetic and logical computation
data transfer
None of these
All of these

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Digital Computer Electronics
How many bytes are there in 1011 1001 0110 1110 numbers?

None of these
1
4
2
8

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

1111
1110000
1111111
None of these

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

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

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