Operating Systems

Operating Systems

1. Examples

   • IOS
   • OSX
   • Linux
   • Windows
   • Xbox-OS
   • Raspbian
   • Android
   • Orbis OS
   • Steam-OS

2. Multitasking

   • Works together with the cpu
   • Allows multiple actions to be performed at once
   • Controls how much a program uses the cpu

3. The user interface

   • A unique "UI" is exclusive to that system
   • Very easy to navigate
   • Known as "GUI"
   • Instead of writing commands
   • Use is based on graphical objects

4. Drivers

   • Controls a type of device connected to the computer
   • External Harware
     • Printers
     • USB's
     • Scanners
     • Mouses
     • Keyboard
   • Internal Hardware
     • Graphics Card
     • Sound cards
     • Network Cards
     • Video Cards
   • Kernel Mode
     • Better performance
     • Crashes are catastrophic
     • Manages Processes
   • User Mode
     • Stability
     • Cannot crash
     • Worse performance than Kernel
   • A piece of software used to control a piece of hardware.

5. Peripheral Management

   • Operating Systems manage the way in which hardware interacts with software
   • Piece of hardware that is not directly connected to the CPU
   • An Operating System manages all of computer peripheral devices that are connected

6. File Management

   • The Operating System must identify where files are stored for long term storage on
   • Hard Disk
   • Solid State drive

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