A modern operating system (OS) is the software that manages all the hardware and software on a computer. It serves as a bridge between the user and the computer's hardware.
● Operating system(OS) main function are :
1. Managing hardware : Operating system controls all the computer's hardware like CPU, memory and storage devices it ensures they work together smoothly.
2. Running Applications : Operating system allows you to run different programs like games and web browsers by managing the resources they need.
3. User Interface : Operating system provides user friendly Interface usually with graphical elements making it easy for you to interact with the computer.
4. File management : it helps you to create, delete, move, and organize files on your computer.
5. Security and Access Control : it protects your data by managing user permissions and preventing unauthorized access.
● Operating system Key Components :
1. Kernel : The core part of the operating system that controls everything in the computer . It manages the memory, processes and hardware.
2. Process Management : it handles running Applications, making sure they get the necessary resources .
3. Memory Management : manages the computer's memory, ensuring that each application has enough memory to run efficiently.
4. Device Drivers: programs that allow operating system to communicate with hardware devices like printers, graphics cards and keyboard.
5. System Utilities : tools and programs that perform maintenance tasks such as virus scanning, disk cleanup and system updates.
These Components work together to allow you to use your computer effectively.
● Security and Networking :
Security is integral with the operating system implementing authentication, authorization and encryption to protect data and resources. Networking capabilities allow devices to communicate over local networks or the internet, supporting various protocols and services.
● Common desktops operating systems :
○ Windows : A popular Operating system for personal computers , developed by Microsoft . Its known for Its user friendly Interface.
○ MacOs : made by apple, this Operating system is used on Mac computers. It's known for it's sleek design and Integration with other apple products.
○ Linux : An open source Operating system that's free to use. Its popular among developers and for running servers because it's very customizable.
○ Android : A mobile Operating system developed by Google, used on many smartphones and tablets .
○ Ios : Apple's mobile Operating system , used on iPhones and ipads. It's known for it's smooth performance and security.
○ Unix : A older , powerful Operating system often in servers and workstations . Its known for it's stability and security.
