Computer Aided Design

Computer Aided Design (CAD)

In 1963, the Massachusetts Institute of Technology [MIT] demonstrated a computer system called sketch pad that created and displayed graphic information on a cathode ray tube (CRT) screen. This system soon became known as CAD. CAD is a television like system that produces a picture on the CRT screen from a computer.  Most CAD system consists of a desktop computer which is connected to the main computer.  The addition of a keyboard, light pen or an electronic tablet and plotter enables the operator to produce any drawing or view required.

Advantages of CAD:-

1. Greater productivity of drafting personnel

2. Less drawing production.

3. Better drawing and design accuracy.

4. Better drawing appearance.

5. Greater detail in layout.

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