A PhD student, Thomas Knoll, was making a program were he could display grayscale images on a monochrome display. The program was called "Display" (so, basically, the original, first name of Photoshop is Display). John Knoll, his brother, got attention of the program and told him that he should make it a full-fledge program for everyone's use. He took a six month break from his studies, just to complete the program, with his brother, John. When finished, he renamed the program to "ImagePro", but the name was already taken, but changed to "Photoshop" a year later, and the program got distrbuted. At this time, Thomas went to Silicon Valley and gave a demonstration of the program to the engineers at Apple, and Russel Brown, an art director of Adobe, bought the license of Photoshop for Adobe.