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Doctors Medicines MCQs Q&A

  1. Barcode reader
  2. OMR
  3. Keyboard
  4. Trackball
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1 Answers

Option 4 : Trackball

The correct answer is option 4, i.e. Trackball.

  • An input device type which is used to control the movement of a cursor on the computer screen is known as Pointing Devices.
  • It allows users to input continuous and multi-dimensional data to the computer.
  • Example - Trackball, Mouse, Touchpads etc.
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Related Questions

Researchers have developed an automated blood drawing and testing device that provides rapid results and allows health care practitioners to spend more time treating patients. Which of the following can be the reason behind the invention of the device as inferred from the statement I. Diagnostic blood testing is the most commonly performed clinical procedure in the world, and it influences most of the medical decisions made in hospitals and laboratories. II. The success rate of manually drawing blood samples depends on clinicians’ skill and patient physiology. III. Nearly all test results come from centralized labs that handle large numbers of samples and use labour-intensive analytical techniques. IV. The device could provide rapid test results at bedsides or in ambulances, emergency rooms, clinics and doctors’ offices.?
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