Knowing Operating System

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Across
  1. 2. A ______ operating system (OS) is a software that allows smartphones, tablet PCs, wearables and other devices to run applications and programs.
  2. 7. ______ means software can work on different types of hardware devices.
  3. 8. Modern operating systems for personal computers use a ____ that lets you use mouse to click icons, buttons and menus.
  4. 9. A ________ is an operating system that reacts to the input within a specific time period.
Down
  1. 1. ______ is a free Linux based operating system, its desktop looks similar to Windows.
  2. 3. an ______ System remains the soul of any computer.
  3. 4. ______ OS is an exclusive property of a company that develops it and can't be copied or distributed.
  4. 5. _____ OS X is a proprietary operating system for Apple desktop and laptop computers.
  5. 6. ______ is the best known and most-used open source operating system.