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What are the difference between partitionpaging and segmentation?
Wiki User
∙ 16y ago
Paging is a virtual memory scheme which is transparent to the program at the application level and which divides memory into fixed-size blocks, such as 4 KBytes.
The segmentation memory management scheme imposes a greater book-keeping burden on the application, and refers to memory using segments of variable size.
Wiki User
∙ 16y ago
Wiki User
∙ 12y agoPaging - Computer memory is divided into small partitions that are all the same size and referred to as, page frames. Then when a process is loaded it gets divided into pages which are the same size as those previous frames. The process pages are then loaded into the frames.
Segmentation - Computer memory is allocated in various sizes (segments) depending on the need for address space by the process. These segments may be individually protected or shared between processes. Commonly you will see what are called "Segmentation Faults" in programs, this is because the data that's is about to be read or written is outside the permitted address space of that process.
So now we can distinguish the differences and look at a comparison between the two:
Paging:
Transparent to programmer (system allocates memory)
No separate protection
No separate compiling
No shared code
Segmentation:
Involves programmer (allocates memory to specific function inside code)
Separate compiling
Separate protection
Share code
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