Expanded key schedule circuit for common key encryption system in which expanded keys are used in a predetermined order in data randomizing process for encryption and in a reversed order in data randomizing process for decryption, comprises round processing circuits connected in series. In a distributed system having heterogeneous computer systems having dissimilar hardware or software components or dissimilar configuration information, such as different natural languages, different operating system types, different network operating system types, and different processor types, the present invention automatically installs the appropriate edition of software on computers. Sub-graphs show data designated by the rectangle marker as processed in the time domain, frequency domain and modulation domain. Once the matrix has been created, the computer program may be executed, wherein the computer program executes according to the interconnected symbols for functional elements displayed in the matrix. A disclosed split mold base includes a first plate having a first surface, a second plate having a second surface opposite the first surface, and a plurality of springs that are disposed between the first and second plates to distribute a clamping pressure applied by a mold press. The decisioning system schedules the events for servicing using various factors to establish the priority of different events.