Operating Systems

Operating Systems

1. Functions

   • Interface
     • It provides a user interface so it is easy to interact with the computer
   • Manages
     • The CPU runs applications ans executes and cancels processes
   • Multi-tasks
     • Allows multiple applications to run at the same time.
   • Manages
     • Memory transfers programs into and out of memory and allocates free space
   • Organises
     • Creates a file system to organise files and directions.
   • Security
     • Provides security through user accounts and passwords.
   • Utilities
     • Provides tools for managing and organising hardware.

2. Examples

   • Mac OS X
   • Linux
   • Windows
   • Android
   • iOS

3. GUI common features

   • Icon driven
   • Menus
   • Able to multitask
   • Pointer