TK Electrical engineering. Electronics Nuclear engineering 207 QA75 Electronic computers. Computer science 85 T Technology (General) 16 TK5101-6720 Telecommunication 14 HE Transportation and Communications 13 QA76 Computer software 10 Wireless 8 TA Engineering (General). Civil engineering (General) 6 Unspecified 6 TK7885-7895 Computer engineer. Computer hardware 5 Wireless communication systems. Mobile communication systems. Access control 5 Wireless sensor network 5 Detectors. Sensors. Sensor networks 4 Q Science (General) 4 Wireless LANs 4 Simulation 3 TJ Mechanical engineering and machinery 3 TK6570 Mobile Communication System 3 Wi-Fi 3 Ambient intelligence 2 Digital Forensics 2 Internet of Things 2 Intrusion detection systems (Computer security). Computer network security. Hackers 2 L Education (General) 2 Mobile 2 Q Science 2 QA Mathematics 2 QH Natural history 2 QoS 2 Quality of Service 2