Book excerpt: This is the eBook of the printed book and may not include any media, website access codes, or print supplements that may come packaged with the bound book. The 8051 Microprocessor: A Systems Approach emphasizes the programming and interfacing of the 8051. Using a systematic, step-by-step approach, the text covers various aspects of 8051, including C and Assembly language programming and interfacing. Throughout each chapter, a wealth of examples and sample programs clarify the concepts, offering an opportunity to learn by doing. Review questions at the end of each section help reinforce the main points covered in the chapter.