Operating systems notes
Address Spaces & Segmentation
How every process gets its own private memory starting at zero, and the first real scheme, segmentation, for making that illusion true. Every section is a drawn page beside a clear written explanation, about 15 minutes in all.
- Chapter 21 of 37
- About 15 minutes
- 7 sections
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In this chapter
- Every process gets its own address space
- Why this illusion is so powerful
- How translation actually happens: the MMU
- Segmentation: one address space, several segments
- Protection and sharing, one segment at a time
- The flaw segmentation could not fix: external fragmentation
- Segmentation vs paging, and the x86 story
Next chapters
Read the whole chapter
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