Operating Systems

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Across
  1. 2. the fundamental part of an operating system responsible for providing access to the machine's hardware
  2. 3. to terminate a connection to a computer or network
  3. 5. a software program which mimics the performance of one or more hardware devices in order to run software independently of the actual hardware
  4. 7. an open source version of Unix developed by a volunteer team of programmers around the world
  5. 10. a set of strict rules for controlling read, write, and execute access to a file or directory
  6. 11. prepare a device to store data, erasing any existing data
  7. 12. to enter information related to an account name and its password in order to access a computer resource
Down
  1. 1. an icon based link between a computer and its operator
  2. 4. a GUI or CLI software link between the computer and operator; also provides a framework for productivity software such as an office suite, web browser, or programming languages
  3. 6. a file which does not appear by default in a directory listing; normally for security reasons or to spare confusion in end users
  4. 8. a software toolkit for UNIX systems underlying numerous GUI window managers including KDE and Gnome
  5. 9. concurrent execution of two or more tasks by a processor