Photoshop was established in 1987. John and Thomas Knoll, the founders of this program, was working at the time with Industrial Magic and Light, the special effects branch for Lucasfilm. They derived this idea from Adobe Illustrator which was already established by Adobe. The Knoll brothers sold the program to Adobe and it blew up massively. Personal computers were running this program individually by the early 1990s. The software took off and photoshop became a more diverse industry allowing different fields to use it. For example these can include but aren’t limited to: publishing, medicine, film, web design, advertising, engineering, and architecture.