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Questions and Answers
What is a key characteristic of Cathode Ray Tube (CRT) monitors?
Which type of printer operates without striking a print-head against a ribbon?
What distinguishes non-impact printers from impact printers?
Which type of speaker provides feedback from the computer system?
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How does a laser printer create an image on paper?
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What is the main function of a multimedia projector?
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What is a common feature of inkjet printers?
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What is NOT a category of printers mentioned in the content?
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Study Notes
Types of Output Devices
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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.
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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.
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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.
- Types include:
-
Impact Printers: Use a print-head with metal pins that strike an inked ribbon to imprint text.
-
Speaker
- Provides audio output from computer systems, enabling sound feedback for users.
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Multimedia Projector
- Projects images or videos from a computer onto a larger screen or wall, often used for presentations that emphasize text and graphics.
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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.
