WBCS.LIVE practice question

Which of the following is incorrect about secondary memory?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. It is an unstable memory
  2. Computer can run without secondary memory
  3. Data is stored permanently even when there is no electricity
  4. It is known as backup memory

Correct answer and explanation

Correct answer: It is an unstable memory