He didn't own a computer-aided-design, or CAD, program.

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Autodesk Inc. (NASDAQ: ADSK) makes computer-aided design (CAD) software used by architects, manufacturers, and engineers.

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He didn't own a computer-aided design, or CAD, program.

FORBES: Easy Designer

Students in the program learn to use computer-aided-drafting (CAD) to design a photovoltaic system, they learn about the sorts of issues that come up when designing such a system, and they learn about the installation and maintenance of such systems.

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In these days of CAD (computer-aided design) the structures of Constantin Brancusi, Georges Vantongerloo, El Lissitsky and Vladimir Tatlin may feel quaint.

WSJ: The Concrete Challenges of Abstraction | Inventing Abstraction | By Tom L. Freudenheim