2OutputOutput is data that has been processed into useful forms called information that can be used by a person or machine.Types of Output are:ReportsGraphicsAudio OutputVideo Output
3Graphics outputDefined as non-text pictorial informationScanned GraphicFaxed documents are actually graphics, not words you can use in a word processor.
4Scanning TextYou can scan a text document but then you have a picture of the text, not text itself that can be manipulated in a word processor
5A program, such as OmniPage will allow you to convert scanned documents into text you can use in a word processor. Check out their web site for many multi-media products. Click here
6Audio OutputDefined as sounds, including words and music, produced by the computerVoice output can be of two types:Encoded output is created by inputting sounds into the computer which turns the sounds into digits and stores them on disk. Later the sounds can be retrieved.Voice synthesis programs can convert text from word processing documents into speech sounds.
7Video Output can display different types of video from cameras, VCR's, video disks, CD's, HDTV, etc.
8Display Devices are Monitors and Flat Panel Displays Old name is CRT (cathode ray tube)Come in different sizesSome can display a full page of news text or be tilted
10One color, green or gray on black or gray background Monochrome MonitorsOne color, green or gray on black or gray background
11Flat Panel DisplaysLCD or Liquid Crystal DisplayPassive or Active Matrix.
12ResolutionImages are displayed on the screen using patterns of lighted dots called pixels or picture elements.A 640 X 480 resolution means that there are 640 dots across by 480 down.VGA monitors have a resolution of 640X480SVGA monitors have a resolution 1,024 X 768 or higher
13Dot pitch refers to how close the dots are to each other Some high resolution displays are like photographsThe closer the dots are to each other, the sharper the image on the screen.Lower dot pitch is better.
14Screen is coated with phosphorus Shadow mask aligns beams of light Yoke moves the image across and down the screenOlder Non-interlaced monitors light every other line