Memory Access Models

Memory access models are frameworks that describe how data is read from and written to a computer's memory. They define the rules for how memory operations occur, especially in multi-threaded environments where multiple processes may access the same data. These models ensure consistent and correct results by establishing whether changes made by one process are seen by others immediately or after some delay. Common models include sequential consistency, where operations appear to happen in a specific order, and relaxed models, which allow more flexibility for performance but require careful management to avoid errors.