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CAD – sometimes spelled CADD- is an acronym for Computer Aided Design. Put simply, CAD is the process of using software to create a model of your design in a virtual environment before incurring the cost of testing them in the real world.

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Autodesk is a world leader in 3D design software for manufacturing, building, construction, engineering, and entertainment. Since introducing AutoCAD in 1982, Autodesk has developed a broad portfolio of 3D CAD software programs to help users visualiz...

Siemens PLM Software’s product lifecycle management (PLM) solutions include digital product development, digital manufacturing and product data management

Edraw is a powerful yet easy-to-use program for creating flowcharts, organizational charts, network diagrams, business presentations, building plans, mind mapping and lots more.

Design World Online helps engineers and other industry professionals stay up-to-date with engineering videos, manufacturing parts information, industrial news and more.

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Reviews and free software downloads for Windows, Mac, Palm, Pocket PC, and Mobile Phones. The best programs and games. Buy software directly online.

Freebyte, Your guide to the Web. Free software, clipart, images, music, games, jokes, anti-virus, dictionaries, pims, operating systems, programming tools, news, weather, screensavers, ebooks, etc.

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory