Get Photoshop 1.0.1 for free
photoshop free

"You can now get your hands on the source code of version 1.0.1 of Photoshop from 1990 for absolutely nothing. Adobe Systems Inc. has given the Computer History Museum permission to distribute the code with the exception of the MacApp applications library that was licensed from Apple. Adobe has worked with the Computer History Museum in the past giving MacPaint away back in 2010." Read my full post at Neowin.