Photoshop 0.63 was the first version of the now-popular image editing software. It was published by John Knoll for Macintosh System 7 on October 2, 1988.[1]


Before choosing the name "Photoshop", John called the project "ImagePro", and perhaps other names lost to history.[2] Eventually, the "Photoshop" branding was chosen, and an upgraded version would be offered to BarneyScan for distribution with their slide scanner.


As image processing is RAM-intensive, Photoshop was able to make use of virtual memory, which was a new feature of System 7.[3] Photoshop would also take advantage of now-standard QuickDraw 32-bit color support.

From the start, Photoshop included the following features:


Lasso Marquee
Hand Move
Crop tool Eraser
Paint Bucket Eyedropper
Brush tool Pencil
Airbrush tool Smudge tool
Blur tool Sharpen tool


  1. GUIdebook Graphical User Interface Gallery, Photoshop 0.63, accessed 11-17-2010
  2., "From Darkroom to Desktop—How Photoshop Came to Light", accessed 11-17-2010
  3. Wikipedia, "System 7", accessed 11-17-2010

External linksEdit

Adobe Photoshop
Versions 0.63 · 0.87 · 1.0 · 2.0 (2.5) · 3.0 · 4.0 · 5.0 (5.5) · 6.0 · 7.0 · CS · CS2 · CS3 · CS4 · CS5 · CS6 · CC
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