L2 (programming language)
L2 was a high-level assembler released in September 1955 and developed by Richard Hamming and Ruth A. Weiss. It was widely used within the Bell Labs, and also by external users, who knew it as Bell 2. It was superseded by Fortran when the Bell Labs' IBM 650 were replaced by the IBM 704 in 1957. "In the late 1950s, at least half the IBM 650s doing scientific and engineering work used either Bell 1 or Bell 2."
