What is the difference between paging and segmentation in memory management?

What is the difference between paging and segmentation in memory management?

Paging and segmentation are both memory management techniques. Paging divides memory into fixed-size blocks, while segmentation divides it into variable-sized segments based on logical divisions.

Can you explain how paging works in more detail?

Sure! In paging, the process is divided into pages, and the physical memory is divided into frames. When a process is executed, its pages are loaded into available frames, allowing non-contiguous memory allocation.

What are the advantages of using segmentation over paging?

Segmentation allows for easier management of data structures and can provide a more logical view of memory, as it reflects the program's structure. It also allows for variable-sized segments, which can be more efficient.

Are there any disadvantages to using paging?

Yes, paging can lead to internal fragmentation since the last page may not be fully utilized. Additionally, managing page tables can add overhead.