The operating system on an iPhone, identified as iOS, is the software foundation upon which all applications and device functions operate. It manages hardware resources, provides a user interface, and ensures security. For example, the system enables users to interact with apps, access the internet, and manage device settings.
Understanding this system software is vital for optimal device performance and security. It provides a framework for app developers, contributing to a rich ecosystem of available apps. Updates often include improved security features, enhanced functionality, and increased overall device stability. The evolution of this system can be traced from the original iPhone OS to the current version, each iteration bringing significant advancements in user experience and capability.