Sistemas Operativos, Manejo de la memoria 2 Direcciones lógicas y direcciones físicas

Fundamentals of Operating Systems: Memory Management

Logical vs. Physical Address Space

• The course introduces the concept of memory management, referencing Chapter 8 of Silver, Chatz, and Gal's textbook.

• All memory addresses used in programming are logical addresses, generated by the CPU and also referred to as virtual addresses.

• Physical addresses are not visible to programmers or users; they are managed by the Memory Management Unit (MMU).

Understanding Physical Memory

• Physical memory refers to the actual RAM installed in a computer, which can be quantified (e.g., 8GB or 16GB).

• The logical address space is typically larger than physical memory, often up to double its size; for instance, if physical memory is 16GB, logical memory could be up to 32GB.

Role of the Memory Management Unit (MMU)

• The MMU translates virtual addresses into physical addresses and is crucial for managing how processes access memory.