Telecommunication Engineering 330 Computer Communication Networks 190 Switching systems 187 Computer networks 172 Computer science 135 Electronics 117 Traffic 115 Information Systems 111 Management 102 Computer network architectures 85 Information technology 79 Digital communications 76 Security measures 76 Wireless communication systems 75 Microwaves 73 Multimedia systems 71 Telecommunication systems 69 Equipment and supplies 67 Computer engineering 66 Systems engineering 64 Internet 60 Technological innovations 60 Signal theory (Telecommunication) 57 Data transmission systems 51 Mathematics 49 Examinations 46 History 45 Quality control 45 Local area networks (Computer networks) 41