The document describes a GPS tracking system provided by UniGuard Technology Limited. It includes: 1. An overview of how the GPS tracking system works with trackers sending location data to a server via GPRS or SMS. 2. Screenshots of the tracking software's features like real-time monitoring, history playback, geo-fencing alarms, and sending commands to trackers. 3. Details on server requirements including recommended hardware of at least a quad-core CPU, 8GB RAM, and RAID storage, and necessary software like Windows 2008, SQL Server, IIS, and .NET Framework.