Vintage 1993 MathSoft Mathcad 4.0 for Windows software package with an unusually extensive collection of original disks, manuals, registration materials, promotional literature and related software.The package includes Mathcad 4.0 installation media, Mathcad 4.0 User's Guide, registration materials, Math Tools literature and additional original MathSoft documentation. Also included is the complete three-disk MathSoft “A Touch of Chaos” Windows screensaver set with its original instructions and promotional material.Particularly interesting is the surviving original MathSoft paperwork documenting this software's 1993 purchase for Applied Materials in Austin, Texas, providing excellent period provenance for the collection.The disks and documentation present very well overall, with normal age and storage wear to some paper materials and packaging. Software has not been tested or installed and is being sold as collectible vintage software.Please review all photographs carefully for exact contents and condition. Everything pictured is included.