Operating Systems

Operating Systems

1. Interface

   • Command-line Interface (CLI)
     • CLI is more complicated to understand than a GUI which is why is has gone out of fasion in most computers. CLI is prefered more for experts because it allows the user to control more is the computer, with GUIs they handle most background activites but CLI, the user knows everything that is happening.
     • With CLI the user inputs commands by typing words, this means it is harder to learn as you have to learn commands, however it is more presise when using the computer
   • Graphical User interface (GUI)
     • The Graphical interface is a more easy to understand type of interface. the interface has a cursor on the monitor that users can use to navigate and icons to click to open programs
     • The GUI allows users to interact with the system using graphical icons or and visual indicators.

2. Drivers

   • Enables the PC to connect with multiple external devices, such as printers or a keyboard

3. Utilities

   • Examples:
     • Windows Defender
     • Disk Utility
   • Security Software, Clean-up Tools, Formatting

4. Security

   • The OS protects users from losing data, corrupting data or overwriting data. The OS can also manages multiple users and ensures that each account has the correct files and access permissions, to stop data being stolen

5. The OS puts a barrier between the hardware and the user.

6. It controls system hardware and their resources

7. Manages the flow of data between permanent storage, main memory and CPU