Which among the following is a type of scanner?

The Correct answer is Drum Scanner.

Key Points

• A Drum Scanner is a type of scanner that captures high-quality images of documents.
• They work by mounting the original image on a drum, which then rotates at high speeds.
• Photomultiplier tubes (PMTs) are used in drum scanners to detect light and convert it into an electrical signal.
• Drum scanners are often used for high-end commercial applications, including publishing and fine art reproduction.
• They are known for their high resolution and color accuracy.
• While they are more expensive and less common than flatbed scanners, they remain the choice for professionals requiring the best quality.

 Additional Information

• Trackball Scanner
  • A trackball is an input device similar to a mouse, but it is not a type of scanner.
  • Trackballs are used to control the cursor on a computer screen and are beneficial for users with limited desk space.
• Steering Scanner
  • There is no such device as a Steering Scanner. This term is incorrect and does not refer to any known scanning technology.
• Potball Scanner
  • A potball is not a type of scanner. The term does not correspond to any recognized scanning or input device.