The Computer History Museum in Mountain View, Calif. (home of Google, and just a few miles from Apple's HQ in Cupertino) has a new display up, featuring none other than the source code to Photoshop 1.0, the very first version of Adobe's powerhouse photo-editing software. The exhibit features 128,000 lines of code, which make up the initial release of Photoshop, for Mac computers back in ye old early computer days of 1989.
Photoshop represents one of the very first, and most successful graphical interfaces, which of course the Mac platform is known for innovating. You can not only see the exhibit at the Computer History Museum itself, but you can also download the source code on your own over the Internet -- as long as you agree to a 1,400-word license. At any rate, it's nice to have this little piece of GUI history archived and remembered in this way.