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Digital Electronics

Digital Electronics
A debouncing circuit is

A latch
A bistable MV
A monostable MV
An astable MV

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Digital Electronics
What is the logic which controls a stair case light associated with two switches A and B located at the bottom and top of the stair case respectively?

 OR
 X-OR
 AND
 X-NOR

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Digital Electronics
Counter is a

  combinational circuit.
  none.
  sequential circuit.
  both.

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Digital Electronics
A computer has a word length of 8 bits (including sign). It is required to determine the range of integers that can be stored in the computer. If 1’s complement is used to represent the numbers, then the range will be

 -256 to 255
 -128 to 127
 -127 to 127
 -256 to 256

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Digital Electronics
Which of the following shows the correct attachment of even parity bit to the data 00001001?

 100001001
 000001001
 000010010
 000010011

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Digital Electronics
Truth table is used to express

 Boolean map
 Boolean expression
 Boolean addition
 Boolean matrix

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