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	2	3								5

Across

1. A touch-sensitive surface that allows for finger movements to control the cursor.

2. The responsiveness of an input device to user movements.

Down

3. The study of people's efficiency in their working environment, relevant in designing input devices.

4. The degree of accuracy that an input device can achieve in moving the cursor.

5. An input device controlled by rotating a ball that moves the cursor on the screen.

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