A robot named Jarvis-1, with the help of colorful graphics, compares his mechanical body to that of a human to show kids what takes place when blood receives oxygen and is pumped throughout the body, returning for more oxygen. Jarvis-1 provides students with lots of facts about the circulatory system as he mixes fun and games into the curriculum * This CD-Rom is compatible with Windows XP or earlier and Mac OS or earlier (not compatible with Inter-based Macintosh computers)