Function expansion station for a portable computer

Claim 1

A station connected to a portable computer to expand various functions of the portable computer, comprising: a receiving plate for receiving the portable computer unitedly when the portable computer is connected; a fixing device for fixing the portable computer in said receiving plate; a slot board mounting board dividing an inside of said station into at least two board accommodating rooms and capable of being electrically connected to the portable computer, said board accommodating rooms defined by said slot board mounting board for accommodating various kinds of slot boards having different length for expanding functions of the portable computer, said various kinds of slot boards including a normal-size slot board having a length which is accommodated in said board accommodating room, a full-size slot board having a length which protrudes out of said board accommodating room, and a half-size slot board having a length of half of that of said full-size slot board and wherein one of said board accommodating rooms includes a space for accommodating a hard disk unit including a hard disk drive; an engaging and disengagement means for engaging and disengaging said hard disk unit with said station; slot board connectors provided in said slot board mounting board so that a connection portion is directed to the at least two board accommodating rooms for detachably mounting the various kinds of slot boards; and openings for inserting said slot boards into each of said board accommodating rooms.