The Second Edition, However, Offers Several Improvements Over The First Edition. Many Section Have Been Rewritten To Clarify The Presentation. Chapters 1 Through 7 And Chapter 10 Have Been Revised By Adding New Up-To-Date Material And Deleting Obsolete Subjects. New Problems Have Been Formulated For The First Seven Chapters. These Replace The Problem Set From The First Edition. Three New Experiments Have Been Added In Chapter 11. Chapter 12, A New Chapter, Presents The IEEE Standard Graphic Symbols For Logic Elements.