A docking system, including a portable computer and a docking unit, operates by latching the portable computer to the docking unit. A docking bay arrangement is used so that the portable computer's keyboard is accessible and usable by the user. A latch control system, which is controlled from the portable computer, provides security by preventing removal of the portable computer from the docking unit by unauthorized persons. This prevents theft, since the docking unit in turn is secured to the work area by a cable system.