Difference between Web Server and Application Server

Web Server	Application Server
Web Server handles only http protocol.	Application server handles all protocols (ftp/tcp/ip) including http protocol.
Web Server mainly deals with request, response i.e. fetch static content from some location.	Application server handles request and response including business logic. Mainly for dynamic content. I.e. Application server = web server + EJBContainer.
Fetching HTML content, images, send a redirect, files which are physically present at the server location.	E.g. Servlet,JSP Applications ,EJB
Apache	Websphere, Tomcat Application server, BEA Web logic.