What Is Data Transmission?

Data transmission is the process of transferring data (audio, video, text, image, etc.) from one device or network to another. Transmissions occur over various communication media, such as copper wires, fiber-optic cables, infrared, or wireless networks. Data transmission can be simplex (in one direction only, from sender to receiver), half duplex (in both directions but not at the same time), or full duplex (in both directions simultaneously).