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Digital Computer Electronics

Digital Computer Electronics
In boolean algebra, the overbar stands for the NOT operation, the plus sign stands for the _____ operation.

AND
OR
NAND
None of these
NOR

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Digital Computer Electronics
The output 0 and 1 levels for TTL logic family is approximately

0.9 and 1.75V
-1.75 and -0.9 V
None of these
0.1 and 5 V
0.6 and 3.5 V

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

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

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Digital Computer Electronics
Conversion of binary number 1100002 to hexadecimal is

4016
None of these
2716
3016
4316

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Digital Computer Electronics
Conversion of decimal number 6710 to it's octal number equivalent is

998
1008
None of these
1038
1098

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Digital Computer Electronics
Conversion of an octal number 1368 to hexadecimal number is

5A16
5D16
70000000000000000
None of these
50000000000000000

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