The invention provides a computer system which is related with a Web server for providing a Web site over the Internet. To permit an improved possibility for fastening the two elements, it is provided according to this invention that the connecting part, in particular the shear connector, is provided with a continuous recess, in particular with a borehole, and the joining means extends through the recess, whereby the element receiving the connecting part is designed as a wooden component. In the case where a heat radiation member is attached to the back surface of the tub, the palladium plating does not melt during solder reflow for example, so that the heat radiation member can be prevented from falling off and hence it is possible to improve the reliability of a QFP as the semiconductor device. A sorting device is operatively coupled to the measurement device and sorts the particles into at least two quality classes based on the analytical property. The means distributing the liquidmelt onto the disk has according to the invention essentially the same speed and direction of rotation as the disk, and the liquidmelt undergoes under the influence of centrifugal action circumferentially a spreading and change in velocity across the disk in contact with the same.