Mobile computing refers to human-computer interaction where the computer is typically designed to be portable and used during regular activities. It enables the transmission of data, video, and voice. Mobile software, mobile communication, and mobile hardware are the three key aspects of mobile computing. The fundamental principles underpinning mobile computing are individuality, social interactivity, connectivity, and portability. Mobile computing utilizes primarily three forms of wireless data connections: cellular data services, Wi-Fi connections, and satellite internet access. Cellular data services employ various technologies such as CDMA, GSM, EDGE, and LTE. This book sheds light on various aspects of mobile computing and communications. The topics included in this book are of utmost significance and bound to provide incredible insights to the readers. The textbook is appropriate for those seeking detailed information in this area.