Operating Systems

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Across
  1. 2. Only viable Linux distro (btw)
  2. 3. A closed-source operating system developed by Microsoft.
  3. 6. Apple's Unix-based desktop operating system.
  4. 7. A widely used open-source OS derived from Unix using GNU tools.
Down
  1. 1. An acronym for the type of interface that uses visual objects, menus, and a mouse.
  2. 2. A mobile operating system developed by Google, based on the Linux kernel.
  3. 4. The outer part of the OS that provides the user interface.
  4. 5. The central core of an operating system.