Programming Language

This is a set of instructions or commands which tell a computer to perform specific tasks.  Typical programming languages are Java, C++, C#, and Visual Basic.

Relational Database

This is a set of tables with data fitted into predefined categories.  The categories are in the columns.  The table can easily be extended without requiring changes to existing applications, and this is an advantage of this type of database.

SQL (Structured Query Language)

This is a programming language which is used to access data in a relational database and to update the database.

PHP

This is a script language and interpreter used mainly on Linux web servers.  The script is embedded in an HTML page, and when the page is requested by a user, the web server first calls PHP, which interprets the PHP script and performs the required actions.

HTML (Hypertext Markup Language)

This is a set of symbols and codes which are used in a web page to tell the web browser how to display the web page content.

Visual Studio.NET

This is a visual programming environment developed by Microsoft for the development of Web applications.