There is provided screen apparatus comprising side walls having a lower edge portion configured to accept tubular screen support members. The encoder and decoder may use various combinations of techniques to reduce switching activity on an address bus. A host provisioning agent executes on the OS of each of the plurality of servers. The data from the first sensor is processed in the processor and stored in the storage device. In some other embodiments, the present invention involves using an application identifier while establishing a login session with the network server.