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Tutorials›Operating Systems
Core CS

Introduction to Operating System

An Operating System is system software that manages computer hardware and provides a platform for running applications. It acts as a link between the user, software, and hardware, making the computer easier and more efficient to use.

Introduction to Operating System

An Operating System, commonly called an OS, is the main system software of a computer or digital device. It controls the basic activities of the system and helps users interact with hardware in an easy way. When we open an application, save a file, use a keyboard, connect a printer, or play a video, the operating system manages these activities in the background. It provides a common platform where different programs can run properly. Without an operating system, users would need to communicate directly with computer hardware, which would be very difficult. Common examples of operating systems are Windows, Linux, macOS, Android, and iOS.

Key Points

  • System Software: An operating system is a type of system software that controls the overall working of a computer.
  • Interface between User and Hardware: It acts as a bridge between the user and physical components such as CPU, memory, keyboard, monitor, and storage devices.
  • Runs Applications: The OS provides the environment required to run software such as browsers, media players, editors, and games.
  • Manages Resources: It controls and distributes important resources such as processor time, memory, storage, and devices.
  • Makes Computers Easy to Use: Users can perform tasks through graphical interfaces, menus, icons, or commands without understanding complex hardware operations.
  • Works in the Background: Many operating system activities happen automatically while the user works on different applications.

Simple Example

When a user opens a web browser, the operating system loads the browser into memory, gives it CPU time, and allows it to use the display, keyboard, mouse, and network connection.

Key Takeaways

  1. An Operating System is the main system software of a computer.
  2. It connects users and applications with hardware.
  3. It helps programs run properly.
  4. It manages computer resources.
  5. Windows, Linux, macOS, Android, and iOS are common operating systems.

Quick Revision

  • OS means Operating System.
  • It acts as a bridge between user and hardware.
  • It manages computer resources.
  • It provides a platform for applications.