The transferring of files from the hard disk to RAM and back is called __ a. paging b. swap file c. thrashing d. Buffer

The correct answer is a. paging.<br /><br />Paging is the process of transferring files or data from the hard disk to the RAM (Random Access Memory) and back. This process is used by the operating system to manage memory and ensure that the system has enough memory to run applications and processes. When the RAM is full, the operating system moves data from the RAM to the hard disk to free up memory. This process is called paging, and it allows the system to use more memory than would otherwise be available in the RAM alone.