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Digital Electronics

Digital Electronics
What is the minimum number of two-input NAND gates used to perform the function of 2-input OR gate?

 three
 four
 two
 one

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Digital Electronics
The fast logic family is

  DRL.
  TRL.
  ECL.
  TTL.

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Digital Electronics
A boolean function can be transformed into logical ________.

 map
 graph
 diagram
 matrix

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Digital Electronics
Why decoder is used in the digital electronics ?

None of these
 It is used to separate address bus and data bus
 To convert non coded information into coded form
 To convert coded information into non coded form

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Digital Electronics
The binary number 110011.11 is equivalent to decimal number

 50.75
 51.65
 50.65
 51.75

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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?

 2:1
 1:1
 1:2
 2:3

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