软件操作系统教学（ANDREW S. TANENBAUM）MOS-3e-01.pptVIP

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软件操作系统教学（ANDREW S. TANENBAUM）MOS-3e-01.ppt

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Figure 1-21. (a) Two directories before linking /usr/jim/memo to ast’s directory. (b) The same directories after linking. Linking Tanenbaum, Modern Operating Systems 3 e, (c) 2008 Prentice-Hall, Inc. All rights reserved. 0-13-6006639 Figure 1-22. (a) File system before the mount. (b) File system after the mount. Mounting Tanenbaum, Modern Operating Systems 3 e, (c) 2008 Prentice-Hall, Inc. All rights reserved. 0-13-6006639 Figure 1-23. The Win32 API calls that roughly correspond to the UNIX calls of Fig. 1-18. Windows Win32 API Tanenbaum, Modern Operating Systems 3 e, (c) 2008 Prentice-Hall, Inc. All rights reserved. 0-13-6006639 Monolithic systems – basic structure: A main program that invokes the requested service procedure. A set of service procedures that carry out the system calls. A set of utility procedures that help the service procedures. Operating Systems Structure Tanenbaum, Modern Operating Systems 3 e, (c) 2008 Prentice-Hall, Inc. All rights reserved. 0-13-6006639 Figure 1-24. A simple structuring model for a monolithic system. Monolithic Systems Tanenbaum, Modern Operating Systems 3 e, (c) 2008 Prentice-Hall, Inc. All rights reserved. 0-13-6006639 Figure 1-25. Structure of the THE operating system. Layered Systems Tanenbaum, Modern Operating Systems 3 e, (c) 2008 Prentice-Hall, Inc. All rights reserved. 0-13-6006639 Figure 1-26. Structure of the MINIX 3 system. Microkernels Tanenbaum, Modern Operating Systems 3 e, (c) 2008 Prentice-Hall, Inc. All rights reserved. 0-13-6006639 Figure 1-27. The client-server model over a network. Client-Server Model Tanenbaum, Modern Operating Systems 3 e, (c) 2008 Prentice-Hall, Inc. All rights reserved. 0-13-6006639 Figure 1-28. The structure of VM/370 with CMS. Virtual Machines (1) Tanenbaum, Modern Operating Systems 3 e, (c) 2008 Prentice-Hall, Inc. All rights reserved. 0-13-6006639 Figure 1-29. (a) A type 1 hypervisor. (b) A type 2 hypervisor. Virtual Machines (2) Tanenbaum, Modern Operating Systems 3 e, (c) 200