The invention is a computer mouse-device/mouse-pad combination in which the mouse device and mouse-pad are magnetically attracted to each other so that a mouse device will stay fixed to the mouse-pad when the mouse-pad is at an angle to the horizontal. Preferably, the mouse device is magnetized by an electromagnetic magnet which is controlled to be sensitive to the touch of the user such that the magnetic force is weakened or turned off when the user touches the mouse device and is turned on full force when the user's hand is not in contact with the mouse device.