Crossword Puzzle for you

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Across
  1. 4. Person who works for a company or organization
  2. 5. Machine that produces hard copies of digital documents
  3. 7. The process of manufacturing goods in large quantities
  4. 8. Person or business that buys products or services from a company
  5. 9. Secure room housing computer servers and networking equipment
Down
  1. 1. Practice of protecting systems and data from digital attacks
  2. 2. Technology using radio waves for tracking and identification
  3. 3. Material essential for electronic device manufacturing
  4. 6. On-site maintenance or support provided to customers
  5. 7. Device used for billing and transactions in retail