Image-Pro could be used for rack card printing too and that wasn’t the only thing it could do. The Knoll brothers then renamed Display to Image-Pro. Then his brother, John Knoll, who was in charge of the special effects department for Industrial Light and Magic on the 1st Star Wars movie showed interest in the project and recommended that it be developed into a full image editing program. To crack this disadvantage of Mac Plus, Thomas began coding a program that could solve the problem.

In 1987, Thomas Knoll, a PhD student at the University of Michigan, found out that his new Mac Plus (third model of computer in Macintosh line) failed to display grayscale images on its 1-bit black and white display.

At the beginning, Photoshop was known as “Display” to show grayscale images on a monochrome display.

Photoshop is mainly used for bitmap image and to do image manipulation tasks effectively.

‘Photoshop’, today is the most popular and profitable application that supports layers, filters, brushes, text, 3D objects, videos, etc.

Adobe photoshop 6.0 release date