A method, system, and program for using a second computer system as an input interface for a first computer system are provided. A second independent computer system is docked into a first computer system. Then, the first computer system uses at least one of an input interface and an output interface of the second independent computer system as a peripheral device for interfacing with the first computer system. While the second independent computer system is undocked from the first computer system at least one of the input interface and the output interface of the second independent computer system are peripheral devices for interfacing solely with the second independent computer system.