Functions Of Operating Systems
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The document discusses the functions and types of operating systems. It defines an operating system as the most important program that runs on a computer and performs basic tasks like recognizing input/output and managing files. The major functions of an operating system are providing an interface for users, managing system resources like memory and CPU time, running applications, and handling security and access rights. The document outlines different types of operating systems including real-time, single-user/multi-tasking, multi-user, distributed, and embedded operating systems. Examples of specific operating systems are also provided.
Functions Of Operating Systems
- 2. Operating Systems Functions of Operating Systems
- 3. Presented By: Akshay Kurup Nikhar Narula
- 4. Index Introduction What is Operating System ? Major Functions of Operating Systems Types of operating systems Different types of OS
- 5. Introduction The operating system is the core software component of your computer. It performs many functions and is, in very basic terms, an interface between your computer and the outside world. In the section about hardware, a computer is described as consisting of several component parts including your monitor, keyboard, mouse, and other parts.
- 6. What is an Operating System ? The operating system is the most important program that runs on a computer. Every general-purpose computer must have an operating system to run other programs. Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers.
- 7. Major Functions of Operating System Providing an interface to the user. Managing system resources. Managing security and access rights. Running applications Process Management Memory Management Extended Machine Mastermind
- 8. Functions of Operating System Booting the computer Performs basic computer tasks eg managing the various peripheral devices eg mouse, keyboard Provides a user interface, e.g. command line, graphical user interface (GUI) Handles system resources such as computer's memory and sharing of the central processing unit (CPU) time by various applications or peripheral devices Provides file management which refers to the way that the operating system manipulates, stores, retrieves and saves data.
- 9. Types of Operating System • Real-time operating system(RTOS) - Real-time operating systems are used to control machinery, scientific instruments and industrial systems. • Single-user, single task - As the name implies, this operating system is designed to manage the computer so that one user can effectively do one thing at a time. • Single-user, multi-tasking - This is the type of operating system most people use on their desktop and laptop computers today. • Multi-user - A multi-user operating system allows many different users to take advantage of the computer's resources simultaneously. • Distributed - A distributed operating system manages a group of independent computers and makes them appear to be a single computer. • Embedded - Embedded operating systems are designed to be used in embedded computer systems. They are designed to operate on small machines like PDAs with less autonomy.
- 10. Different Types of Operating Systems • • • • • • • iOS Linux OS X QNX Microsoft Windows IBM z/OS RedHat
- 11. Mobile OS • • • • • Google Android OS Apple iOS BlackBerry Symbian OS Windows 8