If memory is full , the OS starts storing copies of pages in a hard disk file called the __ Select one: a. Memory virtual bank b. Buffer c. swap file d. thrashing

The correct answer is c. swap file.<br /><br />When the computer's main memory (RAM) is full, the operating system (OS) starts storing copies of pages in a hard disk file called the swap file. The swap file acts as an extension of the main memory, allowing the system to temporarily store data that is not currently in use but may be needed later. This process is known as swapping or paging. The OS retrieves the required data from the swap file and loads it back into the main memory when needed. This mechanism helps to free up memory and ensures that the system can continue to run applications and processes even when the main memory is full