A key assembly comprising: a key housing; at least one key, wherein each one of the at least one key is coupled to the key housing for sliding movement relative to the key housing and is positionable relative to the key housing in a respective first key position and its disposition in the respective first key position effects a transmission of a signal associated with the respective first key position; wherein each one of the at least one key is moveable by an operative movement relative to the key housing between the respective first key position and at least another key position and the operative movement includes a sliding movement.