Programming Mobile Services for Android Handheld Systems: Concurrency is an advanced course that focuses on the design and implementation of concurrent applications for Android handheld devices. The course is aimed at students who have a strong background in programming and are familiar with the basics of Android app development. The course begins by providing an overview of concurrency and its importance in mobile app development. Students will learn about the challenges involved in designing and implementing concurrent applications, and the different approaches that can be taken to address these challenges. The course then dives into the specifics of programming concurrent applications for Android devices. Students will learn about the Android concurrency model, which is based on the use of threads and asynchronous programming. They will learn how to create and manage threads, and how to use the Android APIs to implement asynchronous tasks. Throughout the course, students will work on a series of hands-on programming assignments that will give them the opportunity to apply the concepts they are learning. These assignments will involve designing and implementing concurrent applications that address real-world problems. By the end of the course, students will have a deep understanding of concurrency in mobile app development, and will be able to design and implement concurrent applications for Android devices with confidence. They will have a solid understanding of the Android concurrency model, and will be familiar with the different approaches that can be taken to address the challenges of concurrent programming. Overall, Programming Mobile Services for Android Handheld Systems: Concurrency is an essential course for anyone who is interested in developing high-quality, high-performance mobile applications for Android devices. With its focus on real-world problems and hands-on programming assignments, the course provides an excellent opportunity for students to develop their skills and gain practical experience in this exciting and rapidly evolving field.