A Service is an application component that can perform long-running operations in the background and does not provide a user interface. Another application component can start a Service and it will continue to run in the background even if the user switches to another application. In this course, Android Services Fundamentals, you'll learn everything you need to know about a Service. First, you'll explore Service, Threads, and Process. Next, you'll discover Started Service, Intent Service, Bound Service, and lifecycle of the Services. Then, you'll move on to Inter-process Communication. Finally, you'll wrap up by learning how to use Messenger and AIDL for IPC. By the end of this course, you'll have a very strong foundation on the topic of Service.