The TurboTax 2016 Home Business Federal E-File and State Tax Return CD is a retail license product suitable for both Windows and Mac operating systems. It requires a minimum of 1 GB of RAM and 650 MB of hard drive space. This CD includes the necessary software for tax preparation, with support for a variety of operating systems such as Windows 10, Mac OS X 10.3, and Vista. Made by Intuit, this TurboTax model is designed for individual use and is in English language.