Operating Systems

Operating Systems

1. Functions

   • Interface
     • provides a user interface so it is easy to interact with the computer.
   • Manages The CPU
     • runs applications and executes and cancels processes.
   • Multi-tasks
     • allows multiple applications to run at the same time.
   • Manages Memory
     • transfers programs into and out of memory, allocates free space between programs, and keeps track of memory usage.
   • Organises
     • creates a file system to organise files and directories.
   • Manages Peripherals
     • opens, closes and writes to peripheral devices such as storage attached to the computer.
   • Security
     • provides security through user accounts and passwords.
   • Utilities
     • provides tools for managing and organising hardware.

2. GUI Common Features

   • Icon driven
   • Menus
   • Able to multitask
   • Shortcuts
   • Pointer