I think it's older than that going by this quote from the first chapter. > The Lisp development systems on both my Mac and my PC run comfortably in anywhere fr

I think it's older than that going by this quote from the first chapter. > The Lisp development systems on both my Mac and my PC run comfortably in anywhere from 4 to 8 megabytes of RAM. Less in a pinch. The integrated C++ development environments take anywhere from 12 to 20 megabytes. Both have comparable tools and facilities.