Software Gems: The Computer History Museum Historical Source Code Series

When brothers Thomas and John Knoll began designing and writing an image editing program in the late 1980s, they could not have imagined that they would be adding a word to the dictionary.Thomas Knoll, a PhD student in computer vision at the Universit...

Commentary on the source code

Software architect Grady Booch is the Chief Scientist for Software Engineering at IBM Research Almaden and a trustee of the Computer History Museum. He offers the following observations about the Photoshop source code:And this is the kind of code we all can learn from. Software source code is the literature of computer scientists, and it deserves to be studied and appreciated. Enjoy a view of Photoshop from the inside.

Early Photoshop screenshots*

Historical Source Code Releases