AT&T Bell Laboratories (also known as Bell Labs) is a research and development organization that is owned by AT&T. It was founded in 1925 as the research and development arm of the Bell Telephone Company, and it has played a key role in the development of many important technologies over the years.
Bell Labs is known for its work in a wide range of fields, including telecommunications, computer science, and materials science. Some of the organization's most significant contributions have included the development of the transistor, the creation of the UNIX operating system, and the discovery of the cosmic microwave background radiation, which helped to support the Big Bang theory.
Today, Bell Labs continues to be a leading research and development organization, with a focus on developing technologies that will drive the future of telecommunications and computing.