The TurboTax Deluxe 2011 Federal and State Tax Returns CD is a tax preparation software by Turbotax that includes both federal and state tax return options. It is designed for individuals and households to easily file their taxes online or on CD. The software is compatible with Windows and Mac operating systems, requiring a minimum of 256 MB of RAM and a 1 GHz processor speed. With a 500 MB minimum hard drive space required, this product is a convenient tool for simplifying the tax preparation process for users in the United States.