The Visual Trader application is supported on a Compaq Himalaya S-72004 series architecture, which is based on the newest Server Net Technology. It's currently composed of four central process units with a 512 MB internal cache memory, adding all of them up to 2 GB. The main characteristics of this architecture are its total fault tolerance, which guarantee a 24 hours-365 days availability, and its linear scalability. The system offers a total fault tolerance due to its specific architecture design, having full redundancy in all its hardware components.