this post was submitted on 02 Apr 2024
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    [–] Blue_Morpho 1 points 7 months ago (1 children)

    A minor correction:

    No code was ever shared between the three.

    I remember the lawsuit threats back in the 90's. Here's an article from 1996:

    "Last year, somone from the Massachusetts Institute of Technology apparently found whole chunks of Mica comment for comment, note for note still there in Windows NT."

    https://techmonitor.ai/technology/dec_forced_microsoft_into_alliance_with_legal_threat

    [–] [email protected] 2 points 7 months ago

    Right; Mica wasn't VMS as far as I know, but rather a generic kernel that would have hosted VMS as a client API, a little like how NT hosts Win32 and POSIX (and not OS/2), or how IBM's Workplace OS was going to host OS/2, AIX, and Mac OS as "personalities." It's not likely that any VMS-specific code would have been salvaged from Mica for use in NT, but rather the nucleus of a portable API-agnostic kernel, in which case any architectural resemblance to VMS has more to do with Cutler's sensibilities and less to do with code re-use.