Ashlar Vellum (1990) 2 Graphics Engineering Windows

Ashlar Vellum is a CAD package for mechanical engineers and designers, that includes the ability to intelligently predict where the user wants to connect the next object. There were both "2D" and "3D" versions.

• 1.x (Win)

CircuitMaker (1998) 35 Engineering Windows

CircuitMaker, from MicroCode Engineering, is an easy-to-use schematic design and simulation tool. This product was discontinued in 2000 after being bought out by Altium, and is not related to the current software of a similar name.

• 6.x
• 2000

Drafix (1990) 1 Graphics Engineering Windows

Drafix is a powerful, high performance, and feature rich 2-dimensional computer aided design tool. Despite being a 2-D CAD program, it had many features of high end 3-D CAD software, and competed directly with AutoCAD. Drafix was first was fist released in 1986 for DOS, and was the first professional CAD program released for Microsoft Windows.

• 1.0 (Win)
• 2.x (Win)

IBM Architecture And Engineering Series (1989) 2 Engineering Unix

The IBM Architecture and Engineering Series (AES) is a complete, high end, integrated, 3D drafting and information system. Developed by the firm of Skidmore, Owings and Merrill (SOM) for IBM, this 3D Computer Aided Design system meets the needs of architects, engineers, and builders.

• 1.x

TurboCAD (1993) 3 Graphics Engineering Windows

TurboCAD is a low-cost 2D/3D Computer Aided Design program that competed with AutoCAD and Generic CADD. It was first available for DOS, and later Mac, Windows 3.x, and Windows 9x/NT.

• 1.0
• 3.x

Workview Plus (1993) 0 Engineering Windows

ViewLogic WorkView Plus is a high-end Computer Aided Engineering schematic circuit design and simulation program. This software was available for a number of other platforms, such as SUN Sparc. This is one program that needs the manual - it's not the most intuitive software.

• 5.1