The correct answer is: D. When the computer is turned off, data and instructions stored in primary storage are erased.
Primary storage is also known as main memory or RAM (random access memory). It is a temporary storage area where the computer stores data and instructions that are currently being used. Primary storage is volatile, which means that it loses its contents when the power is turned off.
Secondary storage is also known as auxiliary storage or mass storage. It is a permanent storage area where the computer stores data and instructions that are not currently being used. Secondary storage is nonvolatile, which means that it retains its contents even when the power is turned off.
Here is a brief explanation of each option:
- A. Secondary storage is nonvolatile. This is true. Secondary storage is a permanent storage area where the computer stores data and instructions that are not currently being used. Secondary storage is nonvolatile, which means that it retains its contents even when the power is turned off.
- B. Primary storage is volatile. This is true. Primary storage is also known as main memory or RAM (random access memory). It is a temporary storage area where the computer stores data and instructions that are currently being used. Primary storage is volatile, which means that it loses its contents when the power is turned off.
- C. Secondary storage contains data for immediate processing. This is false. Secondary storage is a permanent storage area where the computer stores data and instructions that are not currently being used. Secondary storage is not used for immediate processing.
- E. All of the above. This is false. Only option D is false.