JSP is short of Java Server Pages. They are a mix of normal HTML with Java code embedded in them. Akin to how **PHP** works, JSP allows one to write java code inline with HTML.

While JSP and **ASP** have similar names, the two are quite different. JSP is a Sun product, and is executed using Java. ASP on the other hand is a Microsoft product, and is VBScript based.

A popular application server that functions as a container for servlets is Tomcat. It is used to execute JSP files using Java, and is part of the Jakarta Project at the Apache Software Foundation.