FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -A memory management unit (MMU) maps the address to RAM and automatically translates addresses. The MMU can, for example, map a logical address space to a corresponding physical address. If, at any point, the RAM space is needed for something more urgent, data can be swapped out of RAM and into virtual memory.

Detailed explanation-2: -Virtual memory is commonly implemented by demand paging. It can also be implemented in a segmentation system. Demand segmentation can also be used to provide virtual memory.

Detailed explanation-3: -When a computer runs out of RAM, the operating system (OS) moves pages of memory over to the computer’s hard disk to free up RAM for other processes. This process is designed to ensure that the OS will not run out of memory and crash. However, overreliance on memory paging can impair performance.

Detailed explanation-4: -Virtual memory works through a temporary process, known as swapping, that combines RAM and with space on the hard disk. On a PC, RAM is the physical memory is where operating system data, running programs and open documents are held.

Detailed explanation-5: -When a computer reaches its RAM limits, it transfers any currently unused pages into the part of its hard drive used for virtual memory. The computer performs this process using a swap file, a designated space within its hard drive for extending the virtual memory of the computer’s RAM.