A keyboard is to be designed as a standardized keyboard having a certain length, width and thickness. The keyboard may be used interchangeably among different mobile computer systems. A keyboard cable associated with the keyboard may be designed such that it can accommodate an interface connector at any location relative to a bottom end of the keyboard. One or more control devices may also be used in conjunction with the keyboard. The control device may be designed with standardized dimensions, electrical interface, interface connector and cable length to enable it to accompany the keyboard among the different mobile computer systems.