Operating System Crossword

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Across
  1. 2. Google's lightweight, web-based OS.
  2. 5. The most widely used OS for PCs.
  3. 7. The foundation of many modern OS.
Down
  1. 1. Apple's sleek operating system for Mac devices.
  2. 3. The open-source OS powering servers and enthusiasts.
  3. 4. Apple's exclusive mobile OS for iPhones and iPads.
  4. 6. The most popular mobile operating system.