For more than two decades, Tim Duffy has taught introduction to computers to thousands of his own students at Illinois State University, as well as to millions of students worldwide through his highly successful series. Still teaching introductory computing today throughout the school year, Duffy knows what works in the classroom; what students need; where students can trip up; what assignments will make them think; what examples and exercises will illuminate the concepts; and what techniques will teach. Duffy teaches what he writes and writes what he teaches. Book jacket.