The process of upgrading an Apple mobile device’s operating system through the company’s desktop software constitutes a method for installing new features, security patches, and performance improvements. This approach necessitates connecting the iPhone, iPad, or iPod touch to a computer running the designated application, after which the update file is transferred and installed. It provides an alternative when over-the-air updates are not feasible, such as in situations with limited bandwidth or storage on the device itself.
This method has historically served as a primary means of maintaining the currency and security of mobile devices. Before widespread high-speed internet access and ample device storage, utilizing a computer offered a more reliable and efficient method for deploying large operating system updates. Benefits include the ability to back up a device entirely before commencing the upgrade and the potential for a more stable installation process. It also provided a recovery mechanism should an over-the-air update fail.