Operating Systems

Operating Systems

1. What does it do?

   • An OS is a collection of programs that control the system hardware resources.
   • It manages the flow of data between permanant storage, main memory, and the CPU.
   • It controls communication with peripherals connected to the computer system such as keyboard and mouse.

2. Security

   • The Os ensures that data being transferd is not lost, corrupted or overwritten
   • The OS may need to manage every account and make sure the correct file permissions are granted to the correct user

3. GUI

   • When we use computer systems we manipulate windows, click on buttons and scroll through menus
   • This type of interface is called a Graphical User Interface.
   • These allow the user to interact with the system using graphical icons and visual indicators.

4. Command line interface