All Mind Reading products work on both Windows and Apple Macintosh (OS 9 and OS X) computers. In order to install and run Mind Reading products you should have a computer with the following: Minimum Pentium 2 running Windows 98 or later with 32 MB RAM. Pentium 3 or faster recommended. or Apple Power Mac running OS 9.2 or later with 16 MB available RAM for application. OS X users (particularly laptop users) should have a minimum of 256MB of memory in order to run Mind Reading. Minimum screen resolution 800 x 600, with 16-bit colour display. Sound card and speakers required. CD-ROM* drive to install from optical disk (2.5 GB free space needed on hard drive) DVD-ROM drive to play from optical disk** * If you have a CD-ROM drive you will not be able to run Mind Reading directly from the CD-ROM, but will have to install the entire application onto your hard disk, requiring at least 2.5GB of free disk space for the Full Version and 140MB for the Emotions Library. ** FULL VERSION ONLY (300 MB free space needed on hard drive)