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Digital Electronics

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?

 1:2
 1:1
 2:3
 2:1

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Digital Electronics
In which of the following codes do the successive characters differ in only 1-bit position?

 binary code
 8421 code
 cyclic code
 2421 code

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Digital Electronics
A half adder is a ________ circuit.

 Combinational
 Sequential
 Both A and B
 None

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Digital Electronics
Which type of CPLD packaging can provide maximum number of pins on the package due to small size of the pins?

BGA
PLCC
PGA
QFP

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Digital Electronics
The output of a NOR gate is high

 only when all the inputs are low
 only when at least one input is high
 only when all the inputs are high
 only when at least one input is low

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Digital Electronics
The minimum decimal equivalent of the number 11C is

 268
 269
 183
 194

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