Output Devices - WhatisOutput? What is output? Data that...

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What is Output? What is output ? Data that has been processed into a useful form, called information Output device is any hardware component that can convey information to user
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Display Devices What is a display device ? Output device that visually conveys information Information on display device sometimes called soft copy Monitor houses display device as separate peripheral
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CRT Monitor What is a CRT monitor ? Contains cathode-ray tube (CRT) Screen coated with tiny dots of phosphor material Each dot consists of a red, blue, and green phosphor Common sizes are 15, 17, 19, 21, and 22 inches Viewable size is diagonal measurement of actual viewing area
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CRT Monitor What is resolution ? Sharpness and clarity of image Refresh rate is speed at which monitor redraws images on screen Higher resolution makes image sharper, displays more text on screen, makes some elements smaller
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CRT Monitor What is dot pitch ? Distance between pixels on the monitor Usually measured in millimeters Smaller distance, higher sharpness Ranges from 0.15 to 0.30 mm
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Video Display Adapters A video adapter provides the interface between your computer and monitor and transmits the signals that appear as images on the display. The following is a list of old and new adapters: MDA (monochrome display adapter) VGA (video graphics array) CGA (color graphics adapter) EGA (enhanced graphics adapter) SVGA (super VGA) XGA (extended graphics array) UVGA (ultra VGA)
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CRT Monitor How does video travel from the processor to a CRT monitor? Step 1. The processor sends digital video data to the video card. Step 2.
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This note was uploaded on 10/22/2011 for the course ECONOMICS 105 taught by Professor Ak during the Spring '11 term at Punjab Engineering College.

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Output Devices - WhatisOutput? What is output? Data that...

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