Computer system and Types of hardware

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Across
  1. 3. unit responsible for input phrase
  2. 6. set of instructions
  3. 8. PCs with high capabilities
  4. 9. optical storage device
Down
  1. 1. responsible for process phase
  2. 2. small programs stored in ROM
  3. 3. processed data
  4. 4. storage brain of computer
  5. 5. typewriter device
  6. 7. raw facts and figures