Explain about the CAD system, Mechanical Engineering

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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

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