AutoSketch 3.x (DOS)
AutoSketch is a 2D vector program sold by Autodesk. Unlike artistic drawing programs, AutoSketch is specifically geared towards engineering applications. Although not as powerful as AutoCAD, it can work with 2D AutoCAD files. Autodesk also produced AutoCAD LT, a higher end 2-D drawing program. But unlike AutoSketch, AutoCAD LT was based directly on AutoCAD and worked similarly.