This rugged portable computer is specially designed for applications in harsh environments with its chassis that is made of steel for maximum ruggedness and corrosion resistance. Corner reinforcement and damping angles are added to optimize safety. This portable computer integrates a 15-inch high resolution (1024*768) and an 88-key keyboard and touchpad mouse. It also utilizes standard desktop parts to create a portable desktop that is easier to transport and supports a wide range of IO ports including 5*PCI/PCE-E full-length ports. This device adopts a modular design to ensure easy upgrading and maintanence.