Once upon a time, there was, in fact, a Photoshop 1.0. It has remained under tight lock and key in the Computer History Museum. Finally the world will get to see the original source code.
Written in the lost coding language of Pascal, it took 128,000 lines of code to run. Over 10 years, 10 million copies were sold and Photoshop would go on to become the standard in photo-editing. The very word “PhotoShop” is now even in the dictionary.
You can even download the source code, after agreeing to a well-worded license agreement. The code might not do you much good now, its worth reflecting how far we’ve come, even when it comes to a simply photo-editing application
Grab the source code here