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Digital Computer Electronics

Digital Computer Electronics
An AND gate has 7 inputs. How many input word are in its truth table?

64
16
None of these
32
128

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Digital Computer Electronics
How many outputs signals can a gate have?

one
two only
both (a) and (b)
more than one
None of these

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Digital Computer Electronics
The number of binary bits required to represent a hexadecimal digit is

None of these
8
4
6
3

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

XOR
None of these
NOR
NAND
OR

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Digital Computer Electronics
Which of the following is not true?

1 x 0 = 0
None of these
1 x 1 = 1
0X0 = 0
0 x 1 = 1

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Digital Computer Electronics
Arithmetic operation are coded in

Terminal symbols
None of these
Input/Outpur(I/0)
Processing symbols
Decision symbols

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