FDDI (fibre-optic digital): Abbreviation for fibre-optic digital device interface. It is a series of network protocols, developed by the American National Standards Institute, concerned with high-speed networks using fibre optics cable. FDDI supports data transmission rates of up to 100 Mb per second and is being introduced in many sites as a replacement for Ethernet. FDDI is one of the first
steps are taken to develop data transmission.