MNP was later supplanted by V.42bis, which was used almost universally starting with the first V.32bis modems in the early 1990s.

Overview

Although XMODEM was introduced 1977, as late as 1985, The New York Times described XMODEM first, then discussed MNP as a leading contender, and that 9600 baud modems "are beginning to make their appearance".By 1988, the Times was talking about 9600 and

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