A device and method for playing digital video are disclosed. The production method includes, assembling together the positive electrode, the separator, and the negative electrode, and then impregnating the assembly with the nonaqueous electrolyte; charging the assembly within 1 min so that a maximum achieved potential of the positive electrode becomes 3. The addition of small amounts of relatively small hard particles in the copper-tin-matrix, particularly Fe3P, MoSi2 or a mixture thereof, provides a suitable hard surface artifact to improve the wear resistance of the bearing material. The provisioning machine establishes at least one firewall rule on the virtual machine restricting communications to the virtual machine to communications from explicitly authorized machines, which including at least one other machine within the organizational unit.