Differentiate between paging and swapping?
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Answer / Princy Singh
Paging is a technique used by Unix-like operating systems to manage the memory of a running process. When a process requires more memory than available in physical RAM, pages of data are swapped out (written) from the RAM to disk storage (known as swap space or virtual memory). When the process needs the paged-out data, it is swapped back into the RAM (paging in). Swapping can cause performance issues due to the time required for reading and writing to the disk.
In contrast, swapping refers to the process of moving entire processes from the main memory (RAM) to the secondary storage (hard drive) when no more room is available in the RAM. This technique allows new processes to be executed but can also result in significant performance degradation.
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