Operating systems

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Across
  1. 3. the programs and other operating information used by a computer
  2. 5. operating system most widely used on desktops
  3. 6. the operation of a computer system by several users for different operations at the same time
  4. 7. computer used primarily by large organizations for critical applications
Down
  1. 1. executing more than one program or task simultaneously
  2. 2. the machines, wiring, and other physical components of a computer
  3. 4. family of systems including BSD and Linux