Segmented Memory Model
The segmented memory model is a computer memory management scheme that divides memory into logical segments, each with a base address and limit. It was widely used in early x86 architectures (like 8086/80286) to overcome the 64KB addressing limitation of 16-bit systems by allowing access to up to 1MB of memory. This model uses segment registers (e.g., CS, DS, ES, SS) to point to different segments for code, data, stack, and extra data.
Developers should learn this concept when working with low-level systems programming, legacy x86 assembly, or understanding historical computer architecture evolution. It's crucial for debugging or maintaining older software, writing bootloaders, or studying operating system internals where segmentation was used for memory protection and multitasking before paging became dominant.