amateur applied biodiversity bluetoothtechnology circu circuits citizenband combinatorics communicationsindustries computergraphics computerhardware computernetworks computerscience computersecurity conservationinevironmentalscience cryptography cyberculture datacomsystems dataprocessing determinants digital e-commerce electrical electricity electromagnetism electronic electronics energypolicies energytechnology engineering gameprogramming gene general handheldpcs homenetworking internet internettelephony java lans lifeonline mathematicalprogramming mathematics matrices mechanicalengineering microelectronics microwavetechnology miscellaneous miscellaneouscomputing miscellaneousnetworking network networkdesign networkprogramming operationsresearch opticalcommunicationsnetworks platform-specificprogramming portable protocols radio radiotechnology reference security shortwave signalprocessing society standards storage telecom telecommunicationhardware telecommunications telecommunicationstechnology telephonesystems telephony videophotographytechniques vlsi wans webprogramming worldwideweb