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Digital Computer Electronics

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

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

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

101
110
10
None of these
11101

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Digital Computer Electronics
Express 8192 in K units.

8.192 k
All of these
8 x 103 K
8K
None 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?

XOR
None of these
NAND
NOR
OR

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Digital Computer Electronics
A shift register can be used for:

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

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Digital Computer Electronics
The clock signals are used in sequential logic circuits

to carry serial data signals
to tell the time of the day
to tell how much time has elapsed since the system was turned on
None of these
to synchronize events in various parts of a system

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