Memory Sharing(共享p291) Share data and code for save(节省) the memory The memory-management system must allow controlled access to shared areas of memory without compromising(影响) essential protection MEMORY MANAGEMENTMEMORY MANAGEMENT Memory Sharing（共享p291） • Share data and code for save(节省) the memory. • The memory-management system must allow controlled access to shared areas of memory without compromising（影响） essential protection