The Start menu, depending on the version of Windows you're using, can have three basic sections; the left-hand pane deals directly with launching applications. Important applications are pinned to the top of the Start menu. Frequently used applications are listed next. At the bottom there's a link to view All apps installed on your PC in either a hierarchical menu structure or alphabetically.
MacOS is designed to take full advantage of the capabilities in every Mac. It’s easy to use, comes with amazing apps, and helps protect your data. How to Launch Applications on a Mac Launching Applications on the Mac, or: Dude, Where's My Start Menu? Download the Yahoo! Messenger App for Mac. New to the Mac? Removing an app from your computer is easier than you think. New to the Mac? How to delete apps on your Mac New to the Mac? Apple's security system, Gatekeeper, has a feature that restricts the type of apps that can be downloaded onto a Mac. By default, Gatekeeper only allows you to download apps from the App Store.
Clicking one of the pinned or frequently used applications, or clicking through the All apps menu lets you quickly launch any application loaded on your PC. On the Mac, the equivalent location is the Applications folder, also found in the root directory of the Mac's (loosely equivalent to the Windows C: drive). Unlike the Program Files directory, the Applications folder is a simple place from which to access and launch applications. For the most part, applications on the Mac are self-contained packages that appear to the casual user as a single file.
Double-clicking the application file launches the program. This self-contained structure makes it easy to drag a program from the Applications folder to the Dock when you want to have easier access to the application. Real Downloader Mac Os X here.
(It also makes it easy to uninstall an application, but that's another chapter.).