Final answer:
The correct non-volatile memory options from the given choices are A) Hard disk and C) Flash memory. RAM is a volatile memory type and loses its data when power is turned off.
Step-by-step explanation:
The question revolves around identifying which types of computer memory are classified as non-volatile. Non-volatile memory is a type of computer memory that retains its data when power is turned off. The options provided are:
- A) Hard disk
- B) RAM
- C) Flash memory
- D) All of these
Non-volatile memory includes:
- Hard disk: It is a type of non-volatile storage that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks coated with magnetic material.
- RAM (Random Access Memory): This is a type of volatile memory and loses its data when the power is turned off.
- Flash memory: This is another example of non-volatile memory that can be electrically erased and reprogrammed.
From the given options, A) Hard disk and C) Flash memory are examples of non-volatile memory, whereas B) RAM is not. Therefore, the correct answer is not D) All of these but a combination of A) hard disk and C) flash memory.