| Subject | English | Hungarian |
| commun. | air-ground point-to-point data communication | két pont közötti levegő-föld adatkommunikáció |
| econ., commun., mater.sc. | data communication | adatközlő |
| comp., MS | Data Communications Equipment | adatátviteli berendezés (One of two types of hardware that are connected by an RS-232-C serial connection, the other being a Data Terminal Equipment (DTE) device) |