AJAX stands for Asynchronous JavaScript and XML. It's a development technique that mixes (X)HTML, JavaScript, CSS, DOM, XML and XSLT to create interactive Web applications.Apache is one of the the world's most widely used Web servers. Originally developed in 1995 by a group that was to go on to become the The Apache Group, the Apache HTTP Server is Open Source Software, and considered by proponents to be fast, scalable and secure.

Active Server Pages - Microsoft's IIS based server side scripting architecture. ASP is a gateway for scripting languages such as VBScript and JScript.

Cache, pronounced "cash", refers to a stored copy of (or pointers to) previously accessed data in fast SRAM memory.