Digital Concepts

mcqspedia.com has 7 Question/Answers about Topic Digital Concepts

A decoder converts ________.

A decoder converts ________.
  • A. noncoded information into coded form
  • B. coded information into noncoded form
  • C. HIGHs to LOWs
  • D. LOWs to HIGHs
  • Correct Answer: Option B

An encoder converts ________.

An encoder converts ________.
  • A. noncoded information into coded form
  • B. coded information into noncoded form
  • C. HIGHs to LOWs
  • D. LOWs to HIGHs
  • Correct Answer: Option A

A demultiplexer has ________.

A demultiplexer has ________.
  • A. one data input and a number of selection inputs, and they have several outputs
  • B. one input and one output
  • C. several inputs and several outputs
  • D. several inputs and one output
  • Correct Answer: Option A

A multiplexer has ________.

A multiplexer has ________.
  • A. one input and several outputs
  • B. one input and one output
  • C. several inputs and several outputs
  • D. several inputs and one output
  • Correct Answer: Option D

The output of an OR gate is LOW when ________.

The output of an OR gate is LOW when ________.
  • A. all inputs are LOW
  • B. any input is LOW
  • C. any input is HIGH
  • D. all inputs are HIGH
  • Correct Answer: Option A

The output of an AND gate is LOW ________.

The output of an AND gate is LOW ________.
  • A. all the time
  • B. when any input is LOW
  • C. when any input is HIGH
  • D. when all inputs are HIGH
  • Correct Answer: Option B

A DAC changes ________.

A DAC changes ________.
  • A. an analog signal into digital data
  • B. digital data into an analog signal
  • C. digital data into an amplified signal
  • D. none of the above
  • Correct Answer: Option B