www.maedastudio.com/1996/gggkami/mori6.jpg
Some early work of John Maeda is done by Postscript programming. A series of posters show various examples.

http://bp0.blogger.com/_jQ3w5UYYX5A/RaIP1wox03I/AAAAAAAAAAM/LlqyguU-qRU/s320/RandomFontColorEffects.jpg

Just van Rossum and Erik van Blokland (LettError) built the Typeface Beowolf as their first ‘RandomFont’.
They apply random functions to the letterforms when printing. Thus you get an individual shape for each letter. Computer fonts are rather dynamic programs than static forms. The two designers admit that the random aesthetic here is not that appealing, but the project was “proof that fonts were no longer physical objects but instructions.” (Interviews 1: Print, p.170, Processing. A Programming Handbook for Visual Designers and Artists, 2007 MIT)
http://www.letterror.com/content/nypels/randomfont.html