1. Do the following crossword puzzle.
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1. an input device for converting sound waves into electrical energy
2. one of the most common types of printers
3. an ink container
4. another word for a document camera
5. a large printer that prints blueprints
6. a pointing device on laptops
7. the inventor of the computer mouse
8. the name of the keyboard layout designed for speed typing
9. audio output devices
10. the sharpness of a printed image (expressed in dots per inch)
11. a monitor type
12. output devices through which recorded or broadcast sound can be heard
13. a computer screen
14. an input device that enables a user to hand-draw images
15. an input device that converts printed material into digital form
16. Light Amplification by Stimulated Emission of Radiation
17. a digital pen
Solution word: external devices