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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...

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

Creator of the World

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.

Siemens is the world’s single-source leader of automation technology products for all industrial sectors. Learn more about our unique range of products and systems.

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Free download showing the easiest way to bid commercial work ever.Estimating made simple. 1st Choice Electrical Estimating Software product.

Electrical Schematic & Panel Layout CAD Software for control design on Visio, includes IEC and JIC symbols, templates, stencils and exporting Bill of Materials to Excel.

Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use.

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