For 150 years, Ericsson has changed the game. From a tiny telegraph repair shop in 1876 to the backbone of modern 5G mobile networks, Ericsson’s 150-year history is defined by innovation. One of Ericsson’s many innovations were created by Ericsson’s Computer Science Laboratory in the 1980s, the Erlang programming language. By pairing Erlang with the Open Telecom Platform (OTP), Ericsson transformed a niche tool into a powerhouse for high-availability, industrial-grade systems—a legacy that continues to underpin the resilient architecture of the 21st-century digital world.