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Digital Computer Electronics

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

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

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Digital Computer Electronics
Conversion of an octal number 1108 to its decimal number is

7010
7310
11010
None of these
7210

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

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

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Digital Computer Electronics
Conversion of an octal number 478 to its binary number is

1001112
1100112
1100112
11110112
None of these

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Digital Computer Electronics
Cyclic codes are used in

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

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

NAND
None of these
XOR
OR
NOR

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