Onboard computer is a set of computer system, including mainframe and touch liquid crystal display and GPS receiver. Host basically takes the current quite mature PC system with good compatibility and stability (including CPU, memory, hard drives, CD-ROM, windows operating system, entertainment software, and navigation software), in addition to the satellite navigation system with GPS (Global Positioning System), can also become a multimedia video entertainment and wireless communications centre and mobile office so that the "network vehicle" from conceptualization to the development of applications.

Onboard computer mostly uses PC's design concept, whose anti-proof, lost power, cooling, security design, body size must be in compliance with vehicle manufacturers and the user's requirements, and almost all used Chinese operating system, large color screen display design and Touch the mode of operation, its main operating procedures are based on packages of practices, procedures include: self-navigation system, MP3, VCD, CD, TV, radio, life information, Internet, e-mail, video Meetings, online services, information vendors, such as a series of user-defined functions, and can open platform, with the support of the implementation of these settings and functions of the directive.

Nearly 50 percent of the new models and 90 percent of the luxury models will have some of the functions of the Internet, which means that these cars have already applied onboard computer system; in fact up to now, onboard computer system is already not new to the majority car owners. But it is necessary to carefully deal with the maintenance of onboard computer.