Adobe Creative Suite (CS) is a collection of graphic design, video editing, and web development applications made by Adobe Systems. Macromedia Studio, a predecessor, was designed and distributed by Macromedia, who released the last version (Macromedia Studio 8) on the 13th of September, 2005. After Adobe's acquisition of Macromedia, however, Macromedia Studio was replaced, modified, and integrated into Adobe CS3, CS4, and CS5. The latest version, Adobe Creative Suite 5, was released on the 30th of April, 2010, and still includes programs like Flash, Dreamweaver, and Fireworks - essential for web designers.

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Learn about Flash by visiting these sites: Internet for Beginners: What is Flash?
Adobe Flash on Wikipedia