a portable computer and portable docking station arrangement includes a portable docking station equipped with a keyboard , a swinging bracket pivoted to the portable docking station , and a portable computer insertable into the swinging bracket in one of two reversed directions for enabling the arrangement to be used as a notebook computer or a tablet pc . a spare battery pack is provided at the portable docking station , and chargeable by external power supply upon insertion of the portable computer into the swinging bracket . data transmission between the portable docking station and the portable computer may be achieved by a wired transmission method or wireless transmission method .