Abstract: A control apparatus for a computer system, which includes a control signal generating unit for generating a input control signal, a selection signal generating unit for generating a selection signal, a control signal switching unit coupled to the control signal generating unit and the selection signal generating unit for outputting an enable signal according to the selection signal while receiving the input control signal, and a plurality of hardware signal control receivers coupled to the control signal switching unit, wherein a first hardware signal control receiver of the plurality of hardware signal control receivers is indicated according to the selection signal and informs an operating system of the computer system to execute an action according to the enable signal.

Abstract: A docking station is used for cooperating with a computer host, and the computer host has a first power connecting portion and a first peripheral component connecting portion. The docking station includes a casing, a second power connecting portion and a second peripheral component connecting portion. The casing is used for disposing the computer host. The second power connecting portion and the second peripheral component connecting portion are disposed at the casing. When the computer host is disposed at the casing, the second power connecting portion is connected to the first power connecting portion to transmit a power signal to the computer host, and the second peripheral component connecting portion is connected to the first peripheral component connecting portion to transmit at least one peripheral component signal to the computer host. An expandable computer system is also disclosed.