Chap07
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The document discusses operating systems and their components. It defines an operating system as an interface between computer hardware and users that facilitates program execution and resource access. The main components of an operating system are described as the process management, memory management, file management, and user interface. Popular operating systems like Unix, Linux, and Windows are also mentioned.
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This document discusses different types of software, including system software and application software. It focuses on system software, describing the main types as operating systems and utility programs. It provides details on the functions of operating systems, examples of different operating systems, and types of utility programs. The key points covered are:
- Software is divided into system software (which includes operating systems and utilities) and application software.
- Operating systems manage and coordinate computer hardware, run programs, provide file management and security, and perform other important functions.
- Utility programs help maintain the computer system with tasks like file compression, disk maintenance, and security programs.Case study windows
Case study windowsPadam Banthia
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Case study of windows a product of microsoft including the history and related to operating system with MS-DOS its scheduling, networking, performance, etc. It also contains the windows architecture, it's system components like kernel, and scheduling through threads in windows.computer Unit 7
computer Unit 7Aqeel Rehman
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This document provides an introduction to operating systems. It discusses how an operating system acts as an interface between the computer hardware and user programs. It then describes different types of operating systems including batch processing systems, online processing systems, time-sharing systems, and real-time systems. Finally, it discusses some popular operating systems like MS-DOS, which became the standard for Intel microprocessors.Chap07
- 1. Chapter 7 Operating Systems ×÷˜Iϵ½y ( ëŠÄXµÄ¹Ü¼ÒÆÅ )
- 2. After reading this chapter, the reader should be able to: O BJECTIVES Define the purpose and functions of an operating system. Understand the components of an operating system. Understand the concept of virtual memory. Understand the concept of deadlock and starvation. List some of the characteristics of popular operating systems such as Windows 2000, UNIX, and Linux.
- 3. Figure 7-1 Computer System
- 5. An operating system is an interface between the hardware of a computer and the user (program or human) that facilitates the execution of the other programs and the access to hardware and software resources. Note:
- 6. EVOLUTION: Batch systems Time-sharing systems Personal systems Parallel systems Distributed systems 7.2
- 8. Figure 7-2 Components of an operating system
- 9. Figure 7-3 Monoprogramming
- 11. Figure 7-5 Categories of multiprogramming
- 14. Figure 7-8 Virtual memory
- 15. Figure 7-9 State diagram with the boundaries between a program, a job, and a process
- 16. Figure 7-10 Job scheduler
- 17. Figure 7-11 Process scheduler
- 18. Figure 7-12 Queues for process management
- 20. Figure 7-14 Deadlock on a bridge
- 21. Deadlock occurs when the operating system does not put resource restrictions on processes. Note:
- 25. Figure 7-16 Dining philosophers
- 26. POPULAR OPERATING SYSTEMS: Unix; Linux; Windows 7.4