Ashlar Vellum Graphics Engineering MacOS 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.

Autodesk AutoCAD Graphics Engineering DOS MacOS Unix Windows

AutoCAD, from Autodesk and first released in 1982, is a powerful Computer Aided Design tool. It was, and still is, often considered the standard for CAD tools. Primarily for the IBM PC platform, it was ported to x86 machines with higher video resolutions such as the Zenith Z-100 and NEC APC. Intermittently, versions for the Macintosh appeared. Later versions use a dongle copy protection.

Cadlogic Instinct Engineering Windows

Instinct is a computer aided design drafting tool designed for Microsoft Windows 1.x.

CircuitMaker 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.

DesignCAD 3D Graphics Engineering DOS

DesignCAD 3D is DOS based CAD progam.

EasyCAD Graphics Engineering DOS

EasyCAD is an easy to use, low cost, 2D CAD program targeted at casual CAD users. EasyCAD features wide range of drawing commands, and a sophisticated programming language similar to AutoCAD's AutoLISP. EasyCAD competed against other low coast 2D programs such as Autodesk AutoSketch. with many more features, but similar appearance to EasyCAD.

Generic CADD Engineering DOS

Generic CADD, originally from Generic Software, Inc., was a popular low-cost 2D CAD program targeted at casual drafting users. Initially it competed against AutoCAD, and the budget TurboCAD. The original version offered a number of separately purchasable modules.

Proteus Design Suite Engineering DOS

Proteus Design Suite is a circuit design and simulation program.

TurboCAD 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.

VersaCAD 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)

Workview Plus 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.