Applications Guides

Applications in Mac OS X are programs.  Mac OS X ships with several dozen of built-in applications that allow you to do a wide range of things and accomplish tasks.  For example, you can create and modify documents, browse the Internet, send and receive e-mails, store and modify a calendar, store contact information, and modify the settings on your Mac.
Apple designed OS X to allow applications to be provided to OS X users as an application bundle (packaged unit) or packaged and then subsequently installed with an installer.  Note that Apple recommends that applications be installed in the Mac OS X Applications folder.
If you're familiar with Windows, you accustomed to uninstalling programs with the Add/Remove Programs option in the Control Panel.  With Mac OS X, uninstalls take on a much different procedure.
An application icon is simply a representation for the application.  Tied to that icon are folders and files that essentially make up the application and allow it to function on your Mac.  Let's demonstrate this with an example.
Each user has his or her own Library folder that contains files and settings specific to an individual's preferences for a given application.  For example, in Safari a person could have a Home page specified that will open when Safari is launched, the appearance could be configured, own security settings, web site bookmarks, the behavior of tabs can be specified, and so on.
You can run multiple applications at the same time on a Mac.  You're only restricted by your  Mac's hardware and memory limits.  The more processing power and memory on your Mac will allow you to run more applications at any given time.
Spotlight can also be used as an application launcher.  Suppose you don't have the application you want to launch located in the Dock.  No worries, you won't have to search within the Applications folder to first locate the application and then launch it, just use Spotlight.
Mac OS X is a very flexible operating system that provides users several different ways to launch an application.  Over time you may get accustomed to using a particular method.  This guide will highlight seven top methods.