The CD version of TTax contains versions for PC and MAC.
Be aware of the minimum system requirements:
Minimum System Requirements: Windows ** NOTE: Win XP is NO LONGER SUPPORTED for TTax 2016
https://ttlc.intuit.com/questions/1901571-minimum-system-requirements-for-turbotax-windows-software
Minimum System Requirements: MAC
https://ttlc.intuit.com/questions/1899173-minimum-system-requirements-for-turbotax-mac-software
