What is paging in memory management?

Paging divides physical memory into fixed-size blocks called frames and logical memory into same-sized blocks called pages. When a process runs, its pages are loaded into available frames (not necessarily contiguous). The page table maps virtual page numbers to physical frame numbers. Benefits: eliminates external fragmentation, simplifies memory allocation. Page size is typically 4KB. Page table is stored in memory, with TLB caching frequent translations.