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A mouse with a sphere that is moved for navigation instead of moving the whole mouse.
  • a)
    Zip Disk
  • b)
    Trackball
  • c)
    Optical Mouse
  • d)
    Keyboard
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A mouse with a sphere that is moved for navigation instead of moving t...
A trackball is an input device used to enter motion data into computers or other electronic devices. It serves the same purpose as a mouse, but is designed with a moveable ball on the top, which can be rolled in any direction.
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A mouse with a sphere that is moved for navigation instead of moving t...
Understanding Trackballs
Trackballs are a unique type of pointing device that allows users to navigate their computer screens without the need to move the entire mouse. Here’s how they work and why they are effective:
How Trackballs Work
- A trackball consists of a stationary base with a large ball on top.
- Users can move the ball with their fingers, thumbs, or palms to control the cursor on the screen.
- The movement of the ball translates to movement on the computer interface, allowing for precise navigation.
Advantages of Trackballs
- Space Efficiency: Since the trackball remains in one place, it requires less desk space compared to traditional mice.
- Reduced Strain: Users can keep their hands in a comfortable position, minimizing wrist strain during extended use.
- Precision Control: Ideal for detailed tasks like graphic design or editing, as users can make minute adjustments easily.
Comparison to Other Options
- Zip Disk: A storage device, not a navigation tool.
- Optical Mouse: Uses a moving base and requires surface movement to function.
- Keyboard: Primarily for inputting text, not for cursor navigation.
Conclusion
Trackballs offer a distinct navigation experience by allowing users to manipulate a stationary device with a sphere. This design provides unique benefits, making it suitable for various applications, particularly where space and accuracy are vital.
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A mouse with a sphere that is moved for navigation instead of moving the whole mouse.a)Zip Diskb)Trackballc)Optical Moused)KeyboardCorrect answer is option 'B'. Can you explain this answer?
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