Page 116 - slides.dvi
P. 116

•
            •
                   •
   Unix
            All
   Case
                          Clear
            I/O
   Study—
                   Processes
                                                                                                               Structural

            looks
                   are
   Overview
                          separation
            like
                   unit

                   of

                                                                                                               Overview
                          between
                                             Device Driver
                                                                                               (Process)
                                                                                                 Application
                                                                  Memory
            operations
                                                                Management
                          user
            on
                   scheduling
                                                      Block I/O
                                             Device Driver
                          and
                                                                                               (Process)
                                                                                                 Application
                   and
            files.
                                                                 File System
                          kernel
                                             Device Driver
                                                                           System Call Interface
                                                      Char I/O

                   protection.
                                                                                               (Process)
                                                                                                 Application
                                             Device Driver
                          portions.
                                                                  Process
                                                                Management



                                         Hardware
                                                                         Kernel
                                                                             User






















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