Podcast Beta
Questions and Answers
Explain the working mechanism of a thermal printer and identify common faults in this type of printer.
The working mechanism of a thermal printer involves heating the special thermal paper to produce an image. Common faults in thermal printers include poor print quality due to worn print heads or dirty mechanisms, paper jams, and connectivity issues.
Describe the types of keyboards and mice commonly used as peripherals, and the methods for diagnosing and correcting common faults in these devices.
Keyboards can be membrane, mechanical, or ergonomic, while mice can be optical, laser, or trackball. Common faults include unresponsive keys or buttons, connectivity issues, and erratic cursor movement, which can be diagnosed and corrected by cleaning, replacing components, or updating drivers.
Discuss the types of display devices and their fundamental differences.
Display devices can be categorized into CRT monitors, LCD monitors, LED monitors, and OLED monitors. CRT monitors use cathode ray tubes, while LCD, LED, and OLED monitors utilize different types of flat panel display technologies.
