computer networks 548 internet 129 communication networks 94 computer security 82 telecommunications 71 data transmission 51 architecture of computer networks 32 more ... multimedia 31 data security 31 mobile communication 29 information systems 28 software 27 mobile services 26 data protection 26 radiocommunications 26 communication protocols 24 network protocols 24 operating systems 23 IP 18 database systems 18 computer technology 17 computers 15 computer attacs 15 artificial intelligence 15 www 14 peer-to peer networks 13 wireless communicaation 12 information retrieval 12 architecture of computational systems 11 cryptography 11 less ...