| Subject | English | Danish |
| comp., MS | physical layer | fysisk lag (Layer one of the OSI model. A software layer that transmits bits from one computer to another and regulates the transmission of a stream of bits over a physical medium. This layer defines how the cable is attached to the network and which transmission technique is used to send data over the cable) |
| commun., comp. | physical layer | fysisk lag |
| commun., comp. | physical layer | lag 1 |
| el. | physical thickness of scattering layer | fysisk tykkelse af spredningslag |
| IT | set of data link and physical layers | sæt dataforbindelser og fysiske lag |