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Adobe releases source code for 1990's Photoshop 1.0.1

Written by Andre Yoskowitz (Google+) @ 15 Feb 2013 21:09

Adobe releases source code for 1990's Photoshop 1.0.1 The Computer History Museum has released the source code for Adobe Photoshop 1.0.1, published in 1990.
Writes the historical society: "With the permission of Adobe Systems Inc., the Computer History Museum is pleased to make available, for non-commercial use, the source code to the 1990 version 1.0.1 of Photoshop. All the code is here with the exception of the MacApp applications library that was licensed from Apple. There are 179 files in the zipped folder, comprising about 128,000 lines of mostly uncommented but well-structured code. By line count, about 75% of the code is in Pascal, about 15% is in 68000 assembler language, and the rest is data of various sorts."

The code was written by Photoshop founder Thomas Knoll, who was the only engineer for v1.

If you are interested in the source code, download it from here, along with a history lesson and user guide: Adobe Photoshop 1.0 Source Code

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