Category Archives: Digital Research

About That Warranty…

Readers have been wondering what kind of valuable warranty users of Microsoft’s Quick Pascal 1.0 (and other products) might be voiding by running it on top of DR DOS 3.3x or 3.40. I don’t have the original Quick Pascal 1.0 … Continue reading

Posted in Digital Research, Microsoft, PC history, Undocumented | Leave a comment

How to Void Your Valuable Warranty

Try installing Quick Pascal 1.0 on DR DOS 3.40: What is going on there? It’s a long story… In 1988, Microsoft became increasingly worried by a new upstart OS from an old rival, DR DOS. Over the years, Digital Research … Continue reading

Posted in Digital Research, DOS, Microsoft | 29 Comments