When you double-click a file, it will automatically open the default application for that file type. However, much of the time you'll open an application directly.
To Open an Application on a PC:
[*=left]Click the Start button and select the desired application. If you don't see it, you can click All Programs to see a complete list. For convenience, commonly-used applications may also have a shortcut on the taskbar or on the desktop.
To Open an Application on a Mac:
[*=left]Click on the application's icon on the Dock. If you don't see it, click the Spotlight icon in the top-right corner of the screen and type the name of the application.
If you are using OS X Lion or Mountain Lion, you can also click the Launchpad icon on the Dock to select an application.
[h=3]Adjusting Your Computer's Settings From time to time, you'll need to adjust your computer's settings. This can range from simple tasks such as changing your desktop background, to more advanced tasks like adjusting your security or network settings. On PCs, the Control Panel is used to adjust settings. On Macs, you'll use System Preferences.
[h=4]To Open the Control Panel (PC): Click the Start button and select Control Panel.
Opening the Control Panel The Control Panel will appear. You can then select the desired category to adjust the settings.
2.The Control Panel will appear. You can then select the desired category to adjust the settings.
In Windows 8, you can open the Control Panel directly from the Start screen. Simply type "Control Panel" and then press Enter.
[h=4]To Open System Preferences (Mac): Click the Apple icon and select System Preferences.
The System Preferences window will appear. You can then select the desired category to adjust the settings.
[*=left]Are you using a PC or a Mac? What kinds of menus and toolbars does it have? How do they change when you open an application?
[*=left]What are folders used for?
[*=left]Try navigating through different folders on your computer.
[*=left]What happens when you delete a file on your computer?
[*=left]What happens when you double-click a file?
[*=left]Where do you go to adjust settings on a PC? On a Mac?