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Digital Computer Electronics

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

1111111
1110000
None of these
1111

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Digital Computer Electronics
Conversion of a octal number 638 to its decimal number is

6110
5710
None of these
5110
5310

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

None of these
NOR
XOR
NAND
OR

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Digital Computer Electronics
Conversion of an octal number 608 to binary number is

11001102
1100002
None of these
11001112
100112

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Digital Computer Electronics
A multiplexer is also known as

data selector
None of these
decoder
multivibrator
coder

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Digital Computer Electronics
How many full and half-adders are required to add 16-bit numbers?

1 half-adders, 15 full-adders
4 half-adders, 12 full-adders
8 half-adders, 8 full-adders
None of these
16 half-adders, no full-adders

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