The following programs all use the cT language to achieve interactive performance on Mac and PC platforms. If you are accessing the textbook using either of these types of computers, then click on the appropriately labeled file below to pull over the file you need after first setting the Mosaic option to Load to Local Disk. The files with the .ctb extensions are the interactive programs. To make use of them, you will also have to pull over the player that is appropriate for your machine. The players are listed below the interactive programs. Enjoy!