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Digital Electronics

Digital Electronics
Which of the following is 1’s complement representation of +57

 00000001
 01000110
 00111001
 11000110

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Digital Electronics
An AND gate will function as OR if

All the inputs to the gates are “1”
All the inputs are ‘0’
Either of the inputs is “1”
All the inputs and outputs are complemente'

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Digital Electronics
The NOR gate can function as a NOT gate if

 one input is set to 1
 one input is set to 0
 inputs are left open
 all inputs are connected together

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Digital Electronics
Which of the following gates is known as anticoincidence detector?

 OR gate
 X-OR gate
 X-NOR gate
 AND gate

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Digital Electronics
When two n-bit binary numbers are added then the sum will contain at most

 (n + 2)-bit
 (n + n)-bit
 n-bit
 (n + 1)-bit

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Digital Electronics
In which of the following base systems is 123 not a valid number?

Base 8
Base 16
Base 3
Base 10

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