Operating systems

Operating systems

1. Managing resources

   • Input and output devices
     • Input
       • Mouse, Keyboard Mic
     • Output
       • Printer speakers monitors
     • Peripherals
   • Processes
     • File compression
       • File compression is storing data in a way that keeps the same information but uses less disk space.
     • Disk defragmentation
       • Disk defragmentation involves re-arranging file fragments on a physical disk surface to improve load times
     • Backing up stores
       • Backing stores are storage devices used to keep backups of important files
     • Security
   • memory

2. Providing an interface

   • Interface
     • An interface is the mechanism by which the user controls the functions of the computer
       • Such as
         • Graphical User Interface
           • A GUI is used by most PC and phone operating systems.
         • Command Line Interface
           • A CLI is a text-based interface were the user types commands, and the result is shown as text.
         • File management
           • Allows operator to edit files
         • System settings
           • This allows the operator to change the settings to their comfort such as the volume or screen resolution