From slashdot again:

Geek Boy writes "Borland has released for free on their website, Turbo Pascal v1.0, v3.02 and v5.5, and Turbo C v1.0, v1.5, and v2.01. They also have links to the story of Frank Borland and the "TurboMan" ad from September 1988. " No source code (that would be pretty smooth) but I'm tempted to put Turbo Pascal on my box and see if I can't compile some of my old hacks with dosemu. I wrote a 15,000 line BBS game my soph year of high school... I wonder if I still have a copy.

Slashdot article:
http://slashdot.org/article.pl?sid=99/07/29/1540200&mode=thread

Borland site:
http://community.borland.com/museum/
Peter