rtenv

 

  1. UNIX-origin
    1. BSD Family
      1. BSD
        1. FreeBSD
          1. DragonFly BSD
        2. NetBSD
          1. OpenBSD
        3. SunOS
        4. NextStep (Steve Jobs, not @ Apple)
          1. Darwin (Apple)
            1. macOS (Apple)
        5. GNU
          1. GNU Hurd
          2. Minix
          3. Linux – kernel
            1. Linux Distros, distributions
            2. Debian
              1. Ubuntu
              2. Raspbian
            3. Slackware: SUSE, OpenSUSE, ….
            4. RedHat: SCO OpenLinux, Mandrake, CentOS, Oracle Enterprise., Oracle Linux
            5. Enoch: Gentoo > Chrome OS, Chromium OS
            6. many more, smaller markets, specialized, …: uClinux, OpenWRT, webOS
            7. Android (see Google-driven)###
    2. Sys III and Sys V family
      1. AT&T Commercial UNIX, UnixWare
        1. Solaris (SUN/Oracle)
        2. HP-UX
        3. AIX
        4. IRIX
  2. Apple-origin
    1. macOS
    2. iOS
    3. iPadOS
    4. tvOS
    5. watchOS
  3. Microsoft-origin
  4. Google-driven
    1. Android – family
      1. Android (mobile)
      2. Android TV
      3. Wear OS (Android Wear)
  5. Other special purpose: VRTX, …

 

https://www.google.com/search?q=operating+systems+VRTX

https://en.wikipedia.org/wiki/Microkernel

 

 

https://en.wikipedia.org/wiki/Linux

https://upload.wikimedia.org/wikipedia/commons/1/1b/Linux_Distribution_Timeline.svg

https://en.wikipedia.org/wiki/Linux_distribution

https://en.wikipedia.org/wiki/Android_(operating_system)

 

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