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Digital Computer Electronics

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

128
64
16
None of these
32

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

32
16
None of these
128
64

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Digital Computer Electronics
The hexadecimal digits are 0 to 9 and A to _____

None of these
E
F
G
D

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

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

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

OR
NOR
None of these
XOR
NAND

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

None of these
101
10
110
11101

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