Paging
Paging is a memory management scheme in computer operating systems that eliminates the need for contiguous allocation of physical memory. It divides physical memory into fixed-size blocks called frames and logical memory into blocks of the same size called pages, allowing non-contiguous storage of processes in memory. This technique enables efficient memory utilization, simplifies memory allocation, and supports virtual memory systems by allowing processes to be larger than physical memory.
Developers should learn paging when working on operating systems, embedded systems, or performance-critical applications where memory management is crucial. It is essential for implementing virtual memory, reducing fragmentation, and enabling processes to run with more memory than physically available, such as in modern desktop and server operating systems like Linux and Windows. Understanding paging helps optimize memory usage and troubleshoot performance issues related to swapping and page faults.