Applications are software tools or programs that run on an operating system to perform a specific set of functions and tasks for the end users. Applications can be anything from a simple desktop screensaver, a program overseeing financial trading to keep track of a forex book, or much more complex large scale infrastructure enterprise solutions like those used for running managed hosting solutions for a data center.
Business applications such as Microsoft Office include a complete suite of applications to accomplish word processing and data management with spreadsheets. Applications are continually being tweaked to run faster and more efficient within a smaller framework like on wireless phones turning them into small handheld computers.
Many applications can be downloaded online for free or on a trial basis to see if it fits your needs. You can find more information about applications and their many uses at Basic Web Applications where you’ll find information on the latest desktop web apps.