- Runs identically on multiple operating systems
- Operating system that computer uses is sometimes called the platform
- Cold boot Turning on
- Warm boot Restarting
- Warm boot from Windows desktop
- Warm boot from system unit
What is a recovery disk?
Contains system files that will start computer when
computer cannot boot
- Also called boot disk
What is a user interface?
- Controls how you enter data and instructions and how information displays on scree
What is a graphical user interface (GUI)?
User interacts with menus and visual images such as icons and button
Working on two or more programs that reside in memory at same time
- Foreground contains program you are using
- Background contains programs that are running but are not in use