tailieunhanh - Lecture Operating system concepts (Sixth ed) - Chapter 21: Windows 2000

The Windows 2000 operating system is designed to take advantage of the many advances in processor technology. Although primarily run on the Intel architecture, Windows 2000 was designed to be portable in order to take advantage of whatever promising technologies happened to come along. Key goals for the system included portability, security, POSIX compliance, multiprocessor support, extensibility, international support, and compatibility with MS-DOS and MS-Windows applications. | Module 21 Windows 2000 History Design Principles System Components Environmental Subsystems File system Networking Programmer Interface Operating System Concepts Silberschatz Galvin and Gagne 2002 Windows 2000 32-bit preemptive multitasking operating system for Intel microprocessors. Key goals for the system portability security POSIX compliance multiprocessor support extensibility international support compatibility with MS-DOS and MS-Windows applications. Uses a micro-kernel architecture. Available in four versions Professional Server Advanced Server National Server. In 1996 more NT server licenses were sold than UNIX licenses Operating System Concepts Silberschatz Galvin and Gagne 2002 History In 1988 Microsoft decided to develop a new technology NT portable operating system that supported both the Os 2 and POSIX APIs . Originally NT was supposed to use the OS 2 API as its native environment but during development NT was changed to use the Win32 API reflecting the popularity of Windows . Operating System Concepts Silberschatz Galvin and Gagne 2002 Design Principles Extensibility layered architecture. Executive which runs in protected mode provides the basic system services. On top of the executive several server subsystems operate in user mode. Modular structure allows additional environmental subsystems to be added without affecting the executive. Portability 2000 can be moved from on hardware architecture to another with relatively few changes. Written in C and C . Processor-dependent code is isolated in a dynamic link library DLL called the hardware abstraction layer HAL . Operating System Concepts Silberschatz Galvin and Gagne 2002 Design Principles Cont. Reliability 2000 uses hardware protection for virtual memory and software protection mechanisms for operating system resources. Compatibility applications that follow the IEEE POSIX standard can be complied to run on 2000 without changing the source code. Performance 2000 .

• Hệ điều hành
• Operating system concepts
• Lecture Operating system concepts
• Operating system
• Operating system structure
• Hệ điều hành
• Windows 2000
• Operating system services
• Operating system structures
• Operating system design
• Computer system organization
• Operating System Debugging
• Operating System Generation
• Types of System Calls
• Computer system structures
• File system interface
• File system implementation
• Computer system architecture
• The Linux system