5.1. What is a servlet?
According to the Java Servlet Specification (Version 2.2):
A servlet is a Web component, managed by a container, that generates dynamic content. Servlets are small, platform-independent Java classes compiled to an architecture-neutral bytecode that can be loaded dynamically into and run by a Web server.
So, a servlet is a server-side software component written in Java, which is loaded and executed within the Java Virtual Machine (JVM) of any Java-enabled application server such as the WebSphere Application Server.
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