The Prentice Hall StudentExpress Astronomy CD-ROM. Student Express is a educational software designed for learning,Studing, and Succeeding. With a minimum requirement of 128 MB of hard drive space and 64 MB of RAM, this CD-ROM is compatible with Windows operating systems. It offers interactive presentations and multimedia content to enhance the student. The software provides a comprehensive collection of textook, worksheets, active art, and web resources for you to help in your child's education in an easy-to-use format.