AutoCAD is a CAD software initially released in 1982 as one of the first CAD programs usable on personal computers rather than mainframe computers. It uses basic entities like lines and circles to create complex objects and supports customization through APIs. Over time, AutoCAD has added increased 3D modeling, rendering, and solid modeling capabilities to enable unique 2D and 3D designs for applications such as human factors assessments.

2. AutoCAD is a CAD (Computer Aided Design) software applications for 2D,3D design and drafting, initially released in late 1982, AutoCAD was one of the first CAD programs to run on personal computers. Most CAD software at the time ran on graphics terminals connected to mainframe computers .

3. In earlier releases, AutoCAD used primitive entitles-such as lines, polylines, circles, arcs, and text- as the foundation for more complex objects.

4. More complicated forms created by AutoCAD.

5. AutoCAD supports a number of applications programming interfaces for customizing and automation.

6. AutoCAD can be useful when it comes to Human Factors (ADA requirements) with the scale figure and section drawings.

7. Since the mid-1990s, AutoCAD has supported custom objects through its C++API. Modern AutoCAD includes a full set of basic solid modeling and 3D tools. ADVANCED AUTOCAD

8. With the release of AutoCAD 2007 came improved 3D modeling functionality, which meant better navigation when working in 3D. Moreover, it became easier to edit 3D models. The mental ray engine was included in rendering. It was now possible to do quality renderings.

9. Unique 2D and 3D designs can be achieved by using AutoCAD. Currently AutoCAD runs exclusively on Microsoft Windows desktop operating system.

10. Human features as well as animal features can be easily obtain by using 3D AutoCAD.