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  • (Score: 2) by DannyB on Wednesday February 07 2018, @08:45PM (2 children)

    by DannyB (5839) Subscriber Badge on Wednesday February 07 2018, @08:45PM (#634560) Journal

    TRS-DOS (TRS-80 disk operating system)
    Vulcan (Harris minicomputer 1970's)
    CP/M (briefly)
    SOS (Apple /// for several years)
    UCSD p-System for years and years
    I could mention Corvus Concept, yes, really, but it hardly counts.
    MS-DOS 3.x to 6.x
    Lisa
    Mac OS (classic all versions 1.0 to 9.x)
    Windows (3.1 onward)
    Linux (SuSE 5.1 onward, Ubuntu 2006 onward, etc)

    Favorite:
    From 1982 to 1984 and beyond, UCSD p-System
    From 1984 to 1999 favorite was Mac OS classic.
    From 1999 on, Linux.

    Honorable mention: that Vulcan minicomputer was a passionate favorite when I was young, 18-21ish, because I had access to source code, and absolutely plumbed the depths of what could be done down in the bowels of the OS. But I quickly moved on to microcomputers when I graduated.

    I developed for UCSD p-System for years. Employer's product (same source code) ran on Apple II, Apple ///, Corvus Concept and IBM PC. The "write once run anywhere" naturally made me like Java many years later. On the IBM-PC we found this Canadian product Datalex Bubble that ran the entire p-System inside an MS-DOS wrapper, so PC users had no idea our app wasn't actual MS-DOS native.

    I developed new versions of employer's product for Mac OS, for years, until the late 1990's.

    Once I learned Linux I never looked back. Timing was convenient because Apple completely abandoned everyone's investment in expensive hardware that ran Mac OS classic. You had to get all new hardware to run OS X. Why bother when there was this new Linux thing.

    --
    When trying to solve a problem don't ask who suffers from the problem, ask who profits from the problem.
    Starting Score:    1  point
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    Total Score:   2  
  • (Score: 2) by DannyB on Wednesday February 07 2018, @08:47PM (1 child)

    by DannyB (5839) Subscriber Badge on Wednesday February 07 2018, @08:47PM (#634562) Journal

    Oh, yeah, forgot about NeXT. I didn't develop for it. But we got one and used it a fair amount when we got an internet connection (not dialup).

    --
    When trying to solve a problem don't ask who suffers from the problem, ask who profits from the problem.
    • (Score: 0) by Anonymous Coward on Friday February 09 2018, @05:30PM

      by Anonymous Coward on Friday February 09 2018, @05:30PM (#635592)

      I forgot about NeXT since I only used NeXTSTEP on HP PA-RISC workstations instead of NeXT branded hardware.