Unit 1 Recognize Computer 1 Text 1 Do You Know Them? 1 Text 2 Notebook Computer 5 Text 3 Communicate with Computer 9 Text 4 Simple Introduction of Installation 13 Unit 2 Use Computer 21 Text 1 Guess What It is 21 Text 2 What does a Computer Look Like? 25 Text 3 Introduction of a Window 28 Text 4 Learning Computer Knowledge All by Yourself 33 Unit 3 Overview of Computer 41 Text 1 C
