A web application has a full range of components as follows: the clientAt the client computer to access the web application, you must have a web browser can use the default web browser in the operating system such as Windows is Internet Explore, Linux usually Firefox, ... and if not, can the browser such as Google Chrome, Opera, etc. web serversIs the archive site content, receive connection requests from a client computer, the web server uses software to run web services cater to the client computer as on Windows IIS, Apache, there are Linux, Tom cat, and. .. web applicationsWeb applications are written in languages such as java, php, and. or maybe a simple flash snippet to embed the application on the site. For example the games online on facebook or zing. databaseIs a server that is used to store information of web applications can be stored on the web server or as a server but often to secure the stored on a different server and using the database management system, such as SQL Server or Oracle ,... For example, like playing games online on your facebook or zing, who finished the games typically save the player's value into a database would do and when do players like to keep playing, then query the database and get it out.
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