You must have seen the terms Web server and App server often used interchangeably as if they related to the same thing and also facilitate the proper functioning of the website. But in reality, they are not the same. Simply put, they work in tandem to deliver content from different websites to end users.
A web server is a computer program that accepts data requests and sends specified documents. A web server can be a computer where online content is stored. Basically, Internet server is used to host websites, but at the same time there are different web servers such as entertainment, hosting, FTP, email, etc.
Web server example: Apache Tomcat, Resin.
App server includes web container as well as EJB container. The application server hosts the environment for running enterprise applications. App servers can set up operating systems, host applications and services for users, IT services, and organizations. In the app server, the user interface is similar to the protocol and RPC/RMI protocols are used.
Example of app server: Weblogic, JBoss, Websphere.
Difference between web server and app server
|STT||WEB SERVER||APPLICATION SERVER|
|1.||Web server includes only web containers.||While application server includes web container as well as EJB container.|
|2.||Web server useful or suitable for static content.||While the application server is equipped for dynamic content.|
|3.||Web server consumes or uses less resources.||While application server uses more resources.|
|4.||The web server arranges the running environment for web applications.||While the application server arranges the environment to run the enterprise’s application.|
|5.||In web server, multithreading is not supported.||In the application server, multithreading is supported.|
|6.||The capacity of the web server is lower than that of the app server.||While the capacity of application server is higher than web server.|
|7.||In the web server, HTML and HTTP protocols are used.||In the app server, the GUI as well as the HTTP and RPC/RMI protocols are used.|