> For the complete documentation index, see [llms.txt](https://davidjosearaujo.gitbook.io/notes-miect/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://davidjosearaujo.gitbook.io/notes-miect/sistemas-de-operacao/memory-management/segmentation.md).
# Segmentation
## Introduction
Typically, the logical address space of a process is composed of different type of segments:
* **code** – one segment per code module.
* **static variables** – one segment per module containing static variables.
* **heap memory** – one segment.
* **shared memory** – one segment per shared region.
* **stack** – one segment.
* Different segments may have different sizes.
In a **segmentation architecture**, the segments of a process are manipulated separately.
* **Dynamic partitioning** may be used to allocate each segment.
* As a consequence, a process may not be contiguous in memory.
* Even, some segments may not be in main memory.
## Memory management unit (MMU)
