UNIX Memory Management
The 386 processor includes virtual memory support(proper page tables) that MS-Windows is capable of taking advantage of, but ther
e is still the 64Kb limit without changing segment registers. Windows 95 now supports a 32-bit address space.
A UNIX process has 3 segments: text, data and stack.
Several processes may share the same segment. Sharing is broken when a segment is written to. Usually only the text segment is shared for long, but this makes a big difference in memory efficiency