Conceptual framework output devices
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This document discusses computer output devices. It describes video display units (VDUs)/monitors which are used to display processed information for the user. Popular types are color or monochrome screens. Printers are also discussed as output devices that produce hard copies. Printers are categorized by technology into impact (e.g. dot matrix) and non-impact (e.g. laser, inkjet). Plotters are another type of output device used to produce graphs and designs on paper.
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- 1. Unit 1 Computer Application and Management Information System; NMBA 018 1
- 2. Output Devices ◦ VDU ◦ Printers ◦ Plotters Computer Application and Management Information System; NMBA 018 2
- 3. hardware components which are used to display or print the processed information displays result of the computer processing for user. The popular output devices are monitor, printer and speaker (audio response systems) Computer Application and Management Information System; NMBA 018 3
- 4. Computer Application and Management Information System; NMBA 018 4
- 5. television-like screens that provide the user- interface in the form of display of text, numbers and images may be monochrome or colour depending on the type of video monitor and the video adapter installed in the computer The video display terminal (VDT) consists of a monitor and keyboard Computer Application and Management Information System; NMBA 018 5
- 6. Computer Application and Management Information System; NMBA 018 6
- 7. purely output devices produce hard copy output Vary in their technologies and capabilities Computer Application and Management Information System; NMBA 018 7
- 8. Printer Impact Non-Impact Character Line Page Daisy wheel Dot matrix Drum Chain Laser Inkjet Thermal Computer Application and Management Information System; NMBA 018 8
- 9. Computer Application and Management Information System; NMBA 018 9
- 10. Plotters are used for plotting graphs and designs on paper. Architects and designers use plotters to produce blueprints of their designs on paper. It is a specialised output device for preparing computer drawn charts and graphs. The most popular type of plotter is the flat bed device. It plots on paper (or other material) that is spread on a flat bed. Computer Application and Management Information System; NMBA 018 10
- 11. Presentation on: ◦ Types of VDU ◦ Types of Printers Computer Application and Management Information System; NMBA 018 11
Editor's Notes
- #6: The CRT serves as an output device and the keyboard as an input device. Thus VDT is an input/output device. If the terminal is provided with some memory and certain processing capability, it becomes a smart or intelligent terminal. A terminal without processing power is called a dumb terminal.