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Digital Electronics

Digital Electronics
How many numbers are used in the decimal number system?

None of these
 0 to 9
 1 to 10
 0 to 10

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Digital Electronics
Which circuit is used in between two systems having two different codes

 Sequential
 Conversion
 Combinational
 Both A and B

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Digital Electronics
1’s complement of 17 is

 11100.
 10001.
  01110.
 10111.

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Digital Electronics
What is the minimum number of NOR gates required realizing an X-OR gating?

 6
 3
 4
 5

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Digital Electronics
The number of 1 in 8-bit representation of 127 in 2’s complement form is m and that in 1,s complement form is n. What is the value of m:n?

 1:1
 1:2
 2:1
 2:3

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Digital Electronics
What is the 2’s complement of 10110000?

 01001111
 01010000
 10001110
 10110000

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