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> from IBM banning the use of their mainframe OSes in emulation I don’t think they would have tried that in the 1970s, when there was an antitrust suit against
by Someone 3y ago
> from IBM banning the use of their mainframe OSes in emulation
I don’t think they would have tried that in the 1970s, when there was an antitrust suit against them for disallowing running their software on plug compatible (https://en.wikipedia.org/wiki/Plug_compatible https://en.wikipedia.org/wiki/Plug_compatible) mainframes.
That (I think) made IBM offer reasonable licensing terms for their software (https://en.wikipedia.org/wiki/Amdahl_Corporation#Company_origins https://en.wikipedia.org/wiki/Amdahl_Corporation#Company_ori...: “Amdahl owed some of its success to antitrust settlements between IBM and the U.S. Department of Justice, which ensured that Amdahl's customers could license IBM's mainframe software under reasonable terms.”)
That case eventually got dropped in 1982, so it didn’t lead to any jurisprudence as to if/when such restrictions are permitted.
(Aside: for a case that ran for over a decade and produced over 30 million pages (https://www.historyofinformation.com/detail.php?id=923 https://www.historyofinformation.com/detail.php?id=923), I find it strange this case doesn’t seem to have made it to Wikipedia yet, and how little there’s elsewhere. Nice example of how bad the public digital record is)