We use a combination of the high-powered Apache server, the open-source MySQL database system (also used by Yahoo, NASA, and the Associated Press), and the programming language php. Other grading software use expensive proprietary technology that serves little use other than to sound impressive and drive up prices. According to EWeek, in February 2002, our free MySQL database matched its much pricier competition in overall performance and stability while pumping out 600 pages of data a second to a thousand simultaneous users. In layman's terms, we're using a superior product that costs next to nothing, and passing the savings on to our customers. As for php, it is an up-and-coming programming language that combines the power to negotiate complex databases with the practicality of being embedded in HTML, the native language of the Internet. Therefore, any computer with a web browser can use our php software.