A resource broker is used in managing workloads of a peer-to-peer distributed computing environment. The communication apparatus comprises a radio transceiver module, a first subscriber identity card, a second subscriber identity card and a processor. In the extended orientation, the first and second base portions both lie flat on a working surface, such as a tabletop. Each paper feed value corresponds respectively to each print swath. Attitude values for a second set of user content delivery devices based on the second sets’ web visitation information, television viewing information andor demographic information are predicted. In particular the core, capable of polarity reversal, has a magnetic remanence by means of which the movable piston is fixable in one of the two predefined positions when the coil is not energized.