Explain about the CAD system.
CAD systems generally require considerable processor power and a number of output and input devices; for instance:
- Light pens
- Large screens
- Devices for example tracker balls, mouse and graphics tablets
- Plotters to draw scale and full size drawings
- Space mouse/space ball
- High specification graphics cards
- Some systems support stereoscopic drawings where 3D spectacles can be worn and user sees a 3D image