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)

VersaCAD (1988) 5 Graphics Engineering DOS

First released in 1983 by T & W Systems Inc (later Versacad Corporation) and based on their earlier T-Square product, VersaCAD is a sophisticated professional object design and drawing tool for the IBM PC. It competed heavily against AutoCAD. A very in-depth history of VersaCAD can be found on Cadhistory (PDF Link)

• 5.3

Visual CADD (1994) 1 Engineering Windows

Visual CADD is a greatly enhanced version of Generic CADD designed for Microsoft Windows. It was created by Numera Software Corporation, which consisted of many original Generic CADD programmers, after Generic CADD was acquired and then abandoned by AutoDesk. It never regained its popularity and was eventually acquired by Corel and IMSI before finally landing at TriTools. The original developers also created another Generic CADD offshoot called General CADD Pro.

• 1.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