The 2017 Intuit TurboTax Premier Investments Personal Tax CD is a tax preparation software package offered by Intuit. It is designed for both Windows and Mac operating systems, making it versatile for a range of users. The CD format allows for easy installation and use of the software, providing a convenient way to manage personal taxes and investments. With the Intuit TurboTax Mac model, users can access a user-friendly interface and comprehensive tools to help navigate the complexities of filing taxes effectively.