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Exercise 3

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    Exercise 3 Exercise 3 Document Transcript

    • Exercise 3<br />Answer all the questions.<br />
      • State the differences between Manual and Automatic input devices. [5]
      • Discuss the advantages of using keyboard over typewriter. [5]
      • Give the functions for each of the following input devices.
      • i. Scanner. [2]
      • ii. Microphone. [2]
      • iii. Sensors. [2]
      • iv. MICR. [2]
      • v. Graphics tablet. [2]
      • Barcode reader is a hand-held or stationary input device used to capture and read information contained in a bar code.
      • i. Explain how it works. [5]
      • ii. Identify the five basic kinds of barcode reader. [5]
      [Total: 30 Marks]<br />