Photoshop is an Adobe Systems Product. Now days Adobe Systems is one of the biggest software development companies in the world. This company provides all multimedia application for all community designers. Graphic designers are using its Photoshop, Illustrator, Indesign, and Freehand etc. Web designers are using its Photoshop, Flash, Dreamweaver, Sound Booth, and Fireworks etc. Post-production artists are using Photoshop, Premiere, Sound Booth, and After Effects etc.
All above explanation is showing that photoshop belongs to the biggest technologies owning community. Now, I am going to tell you about why Photoshop is necessary for each and every designer of graphic designing, web designing, animation, photography and video editing industry. Photoshop has strong ties with other Adobe software for media editing, animation, and authoring. The . PSD (Photoshop Document), Photoshop's native format, stores an image with support for most imaging options available in Photoshop.
In 1987, Thomas Knoll, a PhD student at the University of Michigan, began writing a program on his Macintosh Plus to display grayscale images on a monochrome display. This program, called Display, caught the attention of his brother John Knoll, an Industrial Light & Magic employee, who recommended Thomas turn it into a full-fledged image editing program. Thomas took a six month break from his studies in 1988 to collaborate with his brother on the program, which had been renamed ImagePro. Later that year, Thomas renamed his program Photoshop and worked out a short-term deal with scanner manufacturer Barneyscan to distribute copies of the program with a slide scanner; a total of about 200 copies of Photoshop were shipped" this way.
During this time, John traveled to Silicon Valley and gave a demonstration of the program to engineers at Apple Computer Inc. and Russell Brown, art director at Adobe. Both showings were successful, and Adobe decided to purchase the license to distribute in September 1988. While John worked on plug-ins in California, Thomas remained in Ann Arbor writing program code. Photoshop 1.0 was released in 1990 for Macintosh exclusively, and now the latest released version of Photoshop is cs4.
It was just introduction and a little bit history of the Photoshop. This software is able to provide all solutions related to image editing, digital painting, textures/pattern designing, special effects, lay outing and any type of bitmap or raster graphics editing. Do you want to learn this program, then their are so many professional institutions just go and enquire about the course.