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Digital Computer Electronics

Digital Computer Electronics
Conversion of an octal number 1108 to its decimal number is

7310
7210
None of these
7010
11010

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Digital Computer Electronics
Which of the following boolean algebra statements represent commutative law

(A+B)+CA+(B+C)
A+AA
(B+C)(A.B)+(A.C)
A+BB+A
None of these

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Digital Computer Electronics
Convert the 1000 0000 0000 1111 signed binary number to decimal number.

None of these
30
15
-30
-15

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Digital Computer Electronics
The number of two-input NAND gates required to produce the two-input OR function is

3
None of these
2
1
4

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Digital Computer Electronics
The functional capacity for LSI devices is

12 to 99 gates
1 to 11 gates
None of these
100 to 10,000 gates
more than 10,000 gates

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Digital Computer Electronics
The output of the following gate is 0 only if at least one of the inputs is 1:

OR gate
EX-OR gate
None of these
AND gate
NOR gate

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