BTM 200 Lecture Notes - Lecture 2: Liquid-Crystal Display, Cathode Ray Tube, Wireless Speaker

• School: Concordia University
• Department: Business Technology Management
• Course: BTM 200
• Professor: econcordia

Document Summary

Visually impaired users can input data using: voice recognition, large keyboards, touch-screen keyboards. Virtual keyboard: display on screen when input of text is required. Users with severe motor control problems can use: special trackballs designed for one-finger use that can be mounted anywhere, head-mounted pointing devices, when arm motion is restrained. Enables you to send processed data out of your computer. Can take the form of: text, pictures (graphics, sounds (audio, video. Displays text, graphics and video as soft copies: soft copies: copies you can only see on screen, video, sounds, control signals, printer. Creates tangible or hard copies of text and graphics: hard copies, print, speakers and earphones. Surround-sound speakers: type of audio processing that makes the listener experience sound as if it were coming from all directions by using multiple speakers (i. e. dolby, wireless speaker systems. Headphones or earbuds: keep from distracting others. Lcd: liquid crystal display: flat panel, light and energy efficient, most common type of monitor.