Discussion
Which of the following is not true with respect to a trackball and/or spaceball ?
I. A trackball is a two dimensional positioning device while as a spaceball provides six degrees of freedom.
II. Unlike the trackball a spaceball does not actually move.
III. A trackball is a three dimensional positioning device while as a spaceball provides six degrees of freedom.
Answer: D
Only statement III is not true, so the answer is III only. A trackball is a two dimensional positioning device, while a spaceball provides six degrees of freedom, so I is true. A spaceball does not actually move, because it senses the pressure applied to a sphere, so II is true. Statement III calls the trackball a three dimensional device, which contradicts I.
The options naming I or II as untrue are wrong because those statements are correct.
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development