Operating Systems (OS)

Operating Systems (OS)

1. Every computing device has to have an operating system

   • It allows us to interact (use) a computer
     • Without it, your computer would just be plastic and metal
       • It controls everything the computer does

2. A computer program that controls everything!

   • Without it the computer cannot run

3. Jobs of OS

   • Load and run applications
   • Share out (and manage) memory
   • Communicate with peripherals
   • Accept data from input devices
   • Provide an interface

4. Basic features

   • WIMP (windows, icon, menus and pointers)
   • Search facilities
   • Help
   • Personalisation (change backgrounds etc)
   • Disability access
   • Touch drag
   • Storage
   • Sound

5. Geeky features

   • Manage memory
   • Save, print
   • Provide an interface
   • Shortcuts for experts
   • Run software
   • Communicate with devices
   • Process inputs

6. There are a lot of operating systems. Here are some examples:

   • WINDOWS
     • Devices
       • Desktop PC
       • Laptop
       • Netbook
       • Ultra book
     • Features
       • windows, icons, menus pointers
       • Start menu
       • Customisable background, icons
       • windows files, folders
       • Shortcuts (eg: CTRL+C ete)
       • Separate usernames and passwords
       • Accessibility features (magnify, narrator etc)
       • F1 help
     • Purpose
       • Can run a wide range of software
         • Business- Eg: to use office
         • Personal- Gaming, entertainment
         • Social- Internet browsing etc
   • APPLE IOS
     • Devices
       • iPad
       • iPod
       • iPhone
     • Features
       • App store
       • Music
       • Camera
       • Bluetooth
       • Email/Internet
       • 3G/Wifi
       • iCloud
       • Siri Voice Control
     • Purposes
       • Downloading and running apps on the go via the app store. These can be for entertainment, business or social purposes
       • Business - can use the calendar, email and internet features
       • Socially - social media links and built in camera etc
   • GOOGLES ANDROID
     • Devices
       • Smart phone
       • Tablet
       • Netbook
     • Features
       • App store
       • Music
       • Camera
       • Bluetooth
       • Email/ internet
       • 3G/Wifi
       • iCloud
     • Purpose
       • All the same purposes as IOS
       • Users can also tether and connect their laptop or other device to the internet via their phone
   • MAC OS X
     • Devices
       • Mac
       • Computers
     • Features
       • Finder - quickly find programs and files
       • Dock - to locate all programmes
       • iLife: Garageband, iMovie, iDVDetc for creativity
     • Purpose
       • Very fast computers
       • Creativity- a lot of creative people (business/families) can use the built in facilities
       • Business: like windows it provides office facilities for professional workers