Output Devices: Monitors Overview

Study Notes

Types of Output Devices

Monitor
- Commonly referred to as visual display units; primary output device for displaying data and video.
- Two main types:
  - Cathode Ray Tube (CRT): Large, bulky monitors resembling old television sets, featuring a depth for projection.
  - Liquid Crystal Display (LCD): Thinner and lighter, utilizing less energy compared to CRTs.
Printer
- Converts digital information from a computer into a hard copy printed on paper.
- Two main categories:
  - Impact Printers: Use a print-head with metal pins that strike an inked ribbon to imprint text.
    - Example: Dot-matrix printer, which creates characters from a series of dots.
  - Non-Impact Printers: Operate silently without striking, resulting in faster and higher quality output.
    - Types include:
      - Laser Printers: Utilize laser beams to create images on a drum, which are then transferred to heated paper with toner; known for speed and quality.
      - Inkjet Printers: Squirt liquid ink at the paper through fine jets; fast and capable of high-quality prints.
    - Additional examples: Thermal Printers, Dye Sublimation Colour Printers, and Plotters; referred to as Page Printers for their capability to print entire pages at once.
Speaker
- Provides audio output from computer systems, enabling sound feedback for users.
Multimedia Projector
- Projects images or videos from a computer onto a larger screen or wall, often used for presentations that emphasize text and graphics.

Description

This quiz covers the types of output devices, focusing specifically on monitors. Learn about the two major types of monitors: Cathode Ray Tube (CRT) and Liquid Crystal Display (LCD), their characteristics, and their usage in computer systems.