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Digital Computer Electronics

Digital Computer Electronics
For an input pulse train of clock period T, the delay produced by an n stage shift register is

nT
(n+l)T
None of these
(n-l)T
2nT

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Digital Computer Electronics
The time required for a pulse to decrease from 90 to 10 percent of its maximum value is known as

None of these
binary level transition period
rise time
decay time
propagation delay

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Digital Computer Electronics
Conversion of binary number 1011012 to hexadecimal is

None of these
3716
2D16
2716
20000000000000000

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

10
None of these
110
11101
101

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

32
64
16
128
None of these

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Digital Computer Electronics
Which of the following logic expression is wrong?

1 + 1 + 1 = 1
1+0+1 = 1
1 + 0=1
None of these
1 + 1=0

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