Operating system basic
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This document provides an introduction to operating systems. It defines an operating system as software that enables all computer programs to function and acts as an interface between programs and hardware. The document then lists and describes the main functions of operating systems, including controlling memory allocation, prioritizing requests, managing input/output devices, and more. Finally, it distinguishes between single-user systems that support one user at a time and multi-user systems that enable regulated access for multiple simultaneous users through user accounts and databases.
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The document provides an introduction to operating systems, discussing what an operating system is, its functions, structure and evolution. It defines an operating system as software that enables computer programs to run by managing hardware resources. The key points covered include: the functions of OS like memory management and I/O control; the layered structure of OS consisting of hardware, OS software, system programs and application programs; the evolution of OS from batch processing to timesharing and distributed systems; and the classification of OS into single-user and multi-user systems.
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Sistem operasi adalah perangkat lunak yang mengontrol dan mengelola perangkat keras komputer serta menjalankan aplikasi. Sistem operasi memiliki fungsi utama seperti menjalankan komputer, menyediakan antarmuka pengguna, mengelola program, mengelola memori, dan mengontrol jaringan. Ada berbagai jenis sistem operasi seperti mainframe, embedded, Unix-like, Mac OS, Windows, jaringan, dan webOS. Program utilitas seperti antivirus dan firewall juga membantu sistem
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The document discusses operating systems, providing an introduction, history, definition, types, features, functions, advantages, and disadvantages. It explains that an operating system manages computer resources and enables interaction between hardware, software, and users. Early systems were batch processing oriented but now support multi-tasking, parallel processing, and time-sharing between users. Operating systems provide services like memory management, processor scheduling, and I/O control while hiding low-level details from users and applications.
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The document discusses different types of application software and operating systems. It describes spreadsheets, presentation software, and database management systems as examples of application software. It then discusses the functions of an operating system including controlling hardware, allocating memory, and managing files. It outlines the evolution of operating systems from batch processing to timesharing and distributed systems. Finally, it defines single-user and multi-user operating systems.
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The document provides an overview of operating systems, including what an operating system is, its history, modern functionality, and recent developments. Key points include:
- An operating system interacts between the user and hardware, providing services like file systems, scheduling, networking, and memory management.
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This document provides an introduction and overview of operating systems. It defines an operating system as a program that acts as an intermediary between the user and computer hardware to effectively utilize system resources and make problem solving easier. A computer system consists of hardware, operating system, application programs, and users. The operating system coordinates access to resources, executes programs, handles input/output, manages files and directories, and provides protection and security for multi-user systems. It discusses the evolution of operating systems and provides examples of early systems like batch processing and timesharing systems.
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This document provides an overview of operating systems, including definitions, history, components, functions, types of interfaces. It discusses what an operating system is and its goals of executing user programs, making the computer convenient to use, and using hardware efficiently. It outlines the history of operating systems from the first to fourth generations. It describes the components of a computer system including hardware, operating system, applications, and users. It lists the main functions of operating systems such as memory management, process management, file management, and security. It discusses types of operating systems like batch, time-sharing, real-time, and mobile operating systems. It explains command line and graphical user interfaces. Finally, it describes user and kernel modes, and how
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Operating system basic
- 1. SHUBHAM KUMAR JHA SYIF 2nd shift Bharati vidyapeeth institute of technology. EmailID:Shubham.s.jha98@gmail.com Subject: Operating Systems (For EDUSA) Subject:- ppo
- 2. Contents Today's Topic: Introduction to Operating Systems We will learn 1. What is Operating System? 2. What OS does? 3. Structure of OS 4. Evolution of OS Batch Processing, Multiprogramming, Time sharing systems 5. Operating System Functions 6. Main Funtions of OS 7. Types of OS Single User, Multi User systems
- 3. What is OS? Operating System is a software, which makes a computer to actually work. It is the software the enables all the programs we use. The OS organizes and controls the hardware. OS acts as an interface between the application programs and the machine hardware. Examples: Windows, Linux, Unix and Mac OS, etc.,
- 4. What OS does? An operating system performs basic tasks such as, controlling and allocating memory, prioritizing system requests, controlling input and output devices, facilitating networking and managing file systems.
- 5. Structure of Operating System: Application Programs System Programs Software (Operating System) HARDWARE (Contd…)
- 6. Operating Systems functions: The main functions of operating systems are: 1. Program creation 2. Program execution 3. Input/Output operations 4. Error detection 5. Resource allocation 6. Accounting 7. protection
- 7. Types of OS: Operating System can also be classified as,- Single User Systems Multi User Systems
- 8. Single User Systems: Provides a platform for only one user at a time. They are popularly associated with Desk Top operating system which run on standalone systems where no user accounts are required. Example: DOS
- 9. Multi-User Systems: Provides regulated access for a number of users by maintaining a database of known users. Refers to computer systems that support two or more simultaneous users. Another term for multi-user is time sharing. Ex: All mainframes and are multi-user systems. Example: Unix
- 10. Thank You!!