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Digital Computer Electronics

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

XOR
AND
OR
XAND
None of these

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Digital Computer Electronics
An OR gate has 6 inputs. How many input words are in its truth table?

128
None of these
16
64
32

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Digital Computer Electronics
Conversion of decimal number 9910 to hexadecimal number is

816
6116
5016
None of these
6316

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

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

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Digital Computer Electronics
Binary-Coded-decimal (BCD) numbers express each digit as a _____

nibble
bit
byte
None of these
All of these

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Digital Computer Electronics
The highest decimal number that can be represented with 10 binary digits is

1024
All of these
None of these
1023
512

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