Auto Cad is a commercial computer-aided design (CAD) and
drafting software application. Developed and marketed by Auto desk.
Computer-aided design (CAD) is the use of computer systems
(or workstations) to aid in the creation, modification, analysis, or optimization
of a design. CAD software is used to increase the productivity of the designer,
improve the quality of design, improve communications through documentation,
and to create a database for manufacturing. CAD output is often in the form of
electronic files for print, machining, or other manufacturing operations. The
term CADD (for Computer Aided Design and Drafting) is also used.