Skip to main content

Original Photoshop code now available free from Computer History Museum

Photoshop1a_dt
Image used with permission by copyright holder

Photoshop, the program that launched a million images of improbable situations – and has its own verb – was first released by Adobe back in 1990. Though the photo-editing software can cost upwards of $1,000 today, you can try out the original, bare-bones version gratis. Though we doubt you’ll be able to do much with the outdated software, according to PCWorld, the Computer History Museum is honoring the software’s humble, Macintosh-only beginning by releasing the original source code for Photoshop 1.0.1 for free – and noncommercial use only, of course.

Photoshop’s roots date back to the late 1980s when it was written by Thomas Knoll, a PhD student at the University of Michigan, and his brother, John, who worked at George Lucas’s Industrial Light & Magic. Together, they developed it into a consumer-friendly application and the first iteration of it was bundled with a slide scanner called the Barneyscan. It was christened Barneyscan XP even though it had nothing to do with Barney Rubble and didn’t run on Windows XP. No wonder it only sold about 200 copies. Still, it was enough for Adobe to take notice, license the rights from the Knoll brothers, and release Photoshop 1.0.

The original code for Photoshop is made up of 179 files and about 128,000 lines of code. Roughly 75 percent of the code is written in Pascal, 15 percent is written in code specific to the Motorola 68000 processor that powered the original Macintoshes, and the remaining 10 percent is in other bits of code. By comparison, today’s Photoshop has over 10 million lines of code.

photoshop1_dt
Image used with permission by copyright holder

While the Computer History Museum has most of the code for Photoshop 1.0.1 available, it is missing the MacApp framework that was licensed from Apple. Unless you’ve got an original Macintosh hanging out in your basement, we’re guessing that most people aren’t going to be downloading the code to compile and run Photoshop, but more to learn about how simple lines of code can create such an iconic program.

Download the code for Photoshop 1.0.1 from the Computer History Museum, or check out the museum for yourself in none other than Silicon Valley’s mecca, Mountain View, California. 

Images via KnowYourMeme and creativebits

Editors' Recommendations

Meghan McDonough
Former Digital Trends Contributor
Meghan J. McDonough is a Chicago-based purveyor of consumer technology and music. She previously wrote for LAPTOP Magazine…
How to instal Photoshop brushes (and where to find them for free)
how to install photoshop brushes tutorial featured

Digital artists shouldn’t be limited to a single on-screen cursor any more than physical painters should be restricted to a single paintbrush. Photoshop brushes open up endless possibilities for both photo editing and digital art, from adding texture to creating a digital watercolor from a blank canvas.

Adobe has hundreds of Photoshop brushes that are included with a Creative Cloud subscription, but most of them don’t come pre-installed. Here's how to find and install Photoshop brushes.
How to find free Photoshop brushes

Read more
Adobe releases Photoshop from desktop cage with new iPad app — and more to come
photoshop for ipad launches 1

The most well-known photo editor is no longer chained to a desktop. On November 4, Adobe launched Photoshop for iPad, along with a list of updates to make the traditional Photoshop a bit less traditional, including a new Object Selection tool, one-click background removal, and updates to the interface. Adobe also announced Photoshop Camera for iOS and Android, and updates to Premiere Pro and Premiere Rush.
Photoshop for iPad
Teased last year during Adobe Max, Photoshop for iPad made its official debut at the start of this year’s event. While the goal is to eventually bring the same tools available for desktop to the iPad, as Adobe said last year, the first release of the iPad app is lighter than the robust desktop editor. Adobe says the first version focuses on composting, basic retouching, masking and the most commonly used Photoshop processes.

While the iPad version doesn’t have all the bells and whistles yet, Photoshop for iPad is built on the same code base as the original Photoshop, unlike Adobe’s previous Photoshop-inspired mobile apps like Photoshop Fix. Photo editors and designers can work with layers and more, and open the same PSD files in the desktop program. 

Read more
Good news for Mac photographers — Lightroom now available from Mac App Store
adobe lightroom on apple mac app store mas discover lr copy2

Eyeing an Adobe Lightroom subscription? The photo editing software can now be downloaded directly from the Mac App Store. On Thursday, June 20, Apple added Lightroom CC to the largest catalog of Mac apps in the world, allowing for easier access for downloading the popular photo editing app. Lightroom is the first flagship Adobe app to come to the desktop-based App Store.

The update brings Adobe Lightroom CC to the App Store, offering simpler downloads for users who already have an Apple ID. While Mac users could already download the software directly from Adobe -- and still can -- opting for the App Store download could save time since Mac users may already have data such as purchasing information stored from previous downloads.

Read more