Abstract: A computer-controlled storage system for handling and storing goods items, comprising at least one horizontal storage line provided with rails or equivalent guide members and one or more transport carriages (6) movable along the rails. The system comprises a transport apparatus comprising a power unit (16) with a power transmission mechanism (17) and a rope member (18), connecting these to the transport carriage (6), external to the transport carriage. In addition, the system may comprise a power transmission arrangement connected to the lifting member, external to the transport carriage (6), for lifting a goods item in position above the transport carriage off the guide member to be carried by the transport carriage and for lowering same onto the guide member.