Part 1 of this book describes some of the simple enhancements that C++ has made to C. These features are not object-oriented, but they provide conveniences that C programmers can readily appreciate, and they are used throughout the rest of the book.
Chapter 1 introduces C++'s input and output facilities. Chapter 2 describes several of the features that make C++ easy to use, and also describes how to make C++ work with C programs. Chapter 3 describes references, a new kind of variable that C++ provides.