The practice of locking an Android device to run only a single, designated application is a configuration technique often employed in specialized environments. Consider a point-of-sale system where a tablet is exclusively used for processing transactions; this is a practical illustration of its application. Another example involves digital signage displaying advertisements, where the device solely serves that purpose.
This focused operation offers several advantages. It enhances security by limiting the attack surface, preventing unauthorized access to other functions or applications. It improves device performance by dedicating system resources to the primary application. Furthermore, it simplifies device management and maintenance, as administrators only need to focus on a single application’s functionality and updates. Historically, solutions for achieving this involved custom ROMs, but Android has since incorporated more streamlined, native methods.