Book excerpt: Used at more than 100 institutions in its second edition, Using Turbo Pascal 6.0-7.0, Third Edition applies a highly successful formula of "learning by example" to your introductory Turbo Pascal programming course. The text uses small program segments as examples, breaking down the process of programming into a series of manageable steps. The author has added a new DOS tutorial and lab activities for using the Turbo 7.0 system, and given increased focus to the issue of how to write a program. The concept of procedures is introduced early in chapter 4 (in connection with top down programming design), and then is covered in detail in chapters 10 and 11, making it easy to cover or omit as needed.