004 applicationsoftware communicationandculture communicationinruraldevelopment computernetworkprotocols computernetworks computertechnology development digitaldivide hostidentityprotocol(computernetworkprotocol) intranets(computernetworks) lowpowertelevision mobilecomputing nonfiction ruraltelecommunication securitymeasures tcp/ip(computernetworkprotocol) technologicalinnovations unitedstates wirelesscommunicationsystems wirelesslans worldwideweb