Web Application

A web application is an application software that runs in a web browser or is created in a browser-supported programming language (such as the combination of PHP, JavaScript, HTML and CSS) and relies on a common web browser to render the application.

Common web applications include webmail, e-commerce systems, online accounting, and many other functions.

Through PHP, Java, JavaScript, DHTML, Flash, Silverlight and other technologies, application-specific methods such as drawing on the screen, playing audio, playing video, and access to the keyboard and mouse are all possible. Many services have worked to combine all of these into a more familiar interface that adopts the appearance of an operating system. General purpose techniques such as drag and drop are also supported by these technologies. Web programmers often use client- side scripting to add functionality, especially to create an interactive experience that does not require page reloading.

Some technologies used to create web applications are: such as ASP, CGI, ColdFusion, Java, Javascript, PHP, Perl, and Python.

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