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L1 and L2 (programming language)

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L2 was a high-level assembler released September 1955 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 It was superseded by Fortran when the Bell Labs' IBM 650 were replaced by the IBM 704 in 1957.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."[1]

  1. ^ Holbrook, Bernard D.; Brown, W. Stanley. "Computing Science Technical Report No. 99 – A History of Computing Research at Bell Laboratories (1937–1975)". Bell Labs. Archived from the original on September 2, 2014. Retrieved September 2, 2014.
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