Minitel

Minitel, officially known as TELETEL, was an interactive videotex online service accessible through telephone lines. It was the world's first and most successful mass-market online service prior to the World Wide Web. It was developed in Cesson-Sévigné, Brittany, by government-owned France Télécom.

The service was initially launched on an experimental basis in July 1980 in Saint-Malo and extended to other regions in late 1980. It was commercially introduced throughout France in 1982 by the Postes, Télégraphes et Téléphones (PTT), since 1991, divided into France Télécom and La Poste. From its inception, users were able to make online purchases, book train tickets, access business information services, search the telephone directory, maintain a mailbox, and utilize chat functionalities similar to those now supported by the World Wide Web.