Abstract: Tasks can be done on a network of multiple computers interconnected by communication links. At each of the computers, Knowbot programs may be received and transmitted on the communication links, and may be stored and created; and execution of the tasks associated with the Knowbot programs may be advanced. Each Knowbot program includes a globally unique identifier; navigation information defining a route through the network; and information concerning a task to be done. Knowbot programs may interact with each other and with other network resources. Authenticated Knowbot service stations and Couriers may be used to protect data as well as control its application in the network environment according to stated terms and conditions.

Abstract: A novel communication system including mobile units distributed within a wireless communication network which are connected to a packet switched network (e.g., the Internet) via a proxy server is disclosed. The proxy server converts unicast data packets coming from the packet switched network to multicast data packets being transmitted to the mobile units, and is also responsible for the overall management and control of the communication system.