摘要：Linux prefers paging to segmentation for the following reasons:Memory management is simpler when all processes use the same segment register values that is, when they share the same set of linear addr... 阅读全文

摘要：As already mentioned, a CPU can run in either User Mode or Kernel Mode.　　When a program is executed in User Mode, it cannot directly access the kernel data structures or the kernel programs. When an a... 阅读全文