What is the main purpose of AutoCAD?

What is the main purpose of AutoCAD?

1. It is used to create the computer aided designs or software applications including drafting.

2. It provides tolls to design the software used in the industry, architectures and project management.

3. It develops the application in both 2D  and 3D formats and provide the information to the application.

4. It provides an easy way to design the software with the designs and architect it according to the need.