Whats a Computer?

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Match these words from the previous text with the correct meanings.
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  1. Software: c.
  2. Peripherals: f.
  3. Main Memory: g.
  4. Hard Disk: h.
  5. Hardware: b.
  6. Input: d.
  7. Ports: i.
  8. Output: e.
  9. CPU: a.