FastCAD is a CAD program for DOS

DOS

DOS, short for "Disk Operating System", is an acronym for several closely related operating systems that dominated the IBM PC compatible market between 1981 and 1995, or until about 2000 if one includes the partially DOS-based Microsoft Windows versions 95, 98, and Millennium Edition.Related...

 and Microsoft Windows

Microsoft Windows

Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal...

 users. FCW is the file extension used for FastCAD and Campaign Cartographer

Campaign Cartographer

Campaign Cartographer is a Windows program created by ProFantasy Software originally in 1993, designed to draw maps for role playing and miniature war games. The CAD engine is based on FastCAD, although most of code is written by the publishers. It includes a variety of add-ons for different...

. The current release, version 7, is the full professional tool, including 3D

3D computer graphics

3D computer graphics are graphics that use a three-dimensional representation of geometric data that is stored in the computer for the purposes of performing calculations and rendering 2D images...

 modeling and rendering, symbol definition editing, and advanced capabilities for working with multiple drawings and overlays. FastCAD is written in x86 assembly language

X86 assembly language

x86 assembly language is a family of backward-compatible assembly languages, which provide some level of compatibility all the way back to the Intel 8008. x86 assembly languages are used to produce object code for the x86 class of processors, which includes Intel's Core series and AMD's Phenom and...

 and will run well on basic hardware.

FastCAD was written by Mike Riddle, the author of Interact for the Marinchip 9900 released back in 1979, one of the first PC-based CAD programs. Interact went on to become the architectural basis for the early versions of AutoCAD

AutoCAD

AutoCAD is a software application for computer-aided design and drafting in both 2D and 3D. It is developed and sold by Autodesk, Inc. First released in December 1982, AutoCAD was one of the first CAD programs to run on personal computers, notably the IBM PC...

.

EasyCAD is the 2D

2D computer graphics

2D computer graphics is the computer-based generation of digital images—mostly from two-dimensional models and by techniques specific to them...

-only version of FastCAD.