Fisher-Price Laugh, Smile and Learn Computer Learning System A baby appropriate keyboard topper sits over a standard computer keyboard so baby can tap on the colorful Fun animation, friendly characters, music and sounds reward baby, while learning letters, numbers, colors, shapes and lots more Features with 3 "grow-with-me" learning levels In the Learning Mode, baby learns early academics through each activity Fits all standard size keyboards, but may not fit some unique sizes and ergonomic designs, over sized keys for exciting on-screen rewards For PC (Windows 2000, XP or Vista) and Macintosh compatible