Presentation on theme: "Module 1 Prepared by Elizabeth Isaac DCS, RSET. Flat-Panel Display 1. Flat-Panel displays are thinner. 2. Its weight is less. 3. Need less power compared."— Presentation transcript:
graphical input & output devices graphical input device Keyboards Mouse Trackball and Spaceball Joysticks Data Glove Digitizers Image scanners
graphical input device Touch panels Light pens Voice systems
graphical input device Keyboards Event drive device Text entry
Mouse Types – Mechanical – Optical – Wireless Features – Palm-sized – 1 or 2 buttons – Wheel Position a pointer / cursor on the screen Controls drawing instruments in graphics applications Communicate commands to a program
graphical input device-digitizer A device for drawing, painting or interactively selecting the coordinate positions Graphics Tablet or data tablet inputs a 2d coordinates by activating a hand cursor or stylus
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