Segmentation in operating systems divides a process into chunks called segments, which are not necessarily of the same size. It provides a user’s view of memory, unlike paging, where memory is divided into fixed-size pages. The Segment Table maps logical addresses to physical memory, storing base addresses and segment limits. Segmentation helps reduce internal fragmentation, offers flexibility with variable segment sizes, and allows memory sharing between processes. It also enhances protection by preventing unauthorized access to memory segments.
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