CS5 is the acronym for Adobe Creative Suite 5. Creative Suite is a graphic design suite. The Standard package came with the Photoshop, Acrobat, InDesign and Illustrator applications.
Creative Suite 5 released on April 30, 2010. Aside from Standard, there were four other versions of the suite: Premium, Web Premium, Production Premium and Master Collection. In addition to the standard applications, the Premium package included the Photoshop Extended, Flash Catalyst, Flash Professional, Dreamweaver and Fireworks applications. Web Premium added the Flash Builder and Contribute applications. The Production Premium package included Premiere Pro, OnLocation, Encore, After Effects and Soundbooth. The Master Collection included every application. The Creative Suite product line was discontinued on May 6, 2013.