Since the release of the original iPhone in 2007, Apple's iPhone series has been the most popular smartphone in the world. The reason why the iPhone can be favored by users is mainly due to the powerful functions of the iOS system.From the original iPhoneOS to the latest iOS 16 system, the iOS system has accompanied us for 15 years. Do you still remember when you joined the iOS family? Many friends may not know that the first-generation iOS system is not called iOS 1, but iPhone OS. As the prototype of the iOS system, the iPhone OS can be said to be very simple, only mail, photos, calendar, Safari browser and other basic functions.Then in 2008, Apple launched the iPhone OS2. The biggest update of this system is the addition of the App Store, support for GPS navigation,etc.In 2009, Apple launched iPhone OS3 which mainly added some system functions. Spotlinght global search officially landed on the iPhone, as well as common operations such as copy and paste, and the iOS system gradually began to improve. In 2010, iPhone OS officially changed its name to iOS, and with the release of iPhone 4, it was also named iOS 4. The biggest update was the addition of skeuomorphism. Jobs and his design team designed complex light and shadow effects for the icons on the interface, making the interface looks more beautiful. The system also added the multitasking function, the user can double-click the Home button to switch programs at will. The main update of iOS 5 is the addition of an intelligent voice assistant Siri, iCloud function, and PCFree function (can be activated without connecting to a computer), etc. In this system, users can finally customize wallpapers. iOS 6 can be regarded as an evolutionary version of iOS 5, and the changes are not obvious. In this system, the map function is added for the first time to replace the original built-in Google Maps. In addition, there are panoramic cameras, cellular mobile supports FaceTime, cloud transfer photos, lost mode and so on. The release of iOS 7 in 2013 was the beginning of the transformation of iOS. The entire system UI ushered in a major change, adopting a better-looking flat style, and the iOS system icon style still continues this design. In terms of functions, the very practical AirDorp function has been added, and the nine cell input method that Chinese people prefer is added. iOS 8 can also be regarded as an optimized version of iOS 7, with new additions including Apple Pay payment service, continuous interoperability, third-party input method support, and new health applications.The iOS 9 update does not change too much, mainly adding eye protection mode, power saving mode, 3D Touch, live photos, and the iPhone lock screen password supports 6 digits for the first time. iOS 10 canceled the function of "slide to unlock" that users have been accustomed to for many years, and replaced it with pressing the Home button to unlock. In addition, iOS 10 has also redesigned the lock screen interface, with richer notifications and support for raising to wake up, including the UI of the control center has also ushered in major changes, and Siri can directly control third-party applications and so on. iOS 11 can be said to be the worst operating system in the history of iOS. On the one hand, the system optimization is not done well. Many users have the impression that it consumes large power. Because of the emergence of the full-screen iPhone X, the interaction method of iOS 11 has also brought many changes, including the small white bar at the bottom, the pull-down call out control center, Face ID unlocking and so on. While the App Store has also been redesigned, it doesn't look like much.Apple has finally worked hard in iOS 12, and the fluency has been greatly improved. According to Apple's official statement, the camera startup speed has increased by 70%, the app startup speed has been increased by 40%, etc., and screen time, do not disturb mode, and password autofill have also been added. The biggest update of iOS 13 is the addition of the "Dark Mode" function, which not only saves power, but is also loved by users who stay up late. In this system, Face ID unlocking is also faster, the software startup speed is twice as fast, and the software installation package and update package have become smaller iOS 14 can be said to be another relatively large system adjustment after iOS 7. New screen widgets and App resource libraries have been added, including the system volume button icon has also been moved from the middle of the screen to the side, call pop-up window, light App, App Track transparency and more. iOS 15 mainly adds "focus mode", live text, wallet supports car keys and ID cards, FaceTime supports multi-person calls, weather app upgrades, app privacy reports, iPhone 12 and above models can support wearing a mask to unlock, etc. . This year's iOS 16 has just been released, and it has also been complained about, because the major changes to the lock screen interface have made many users very uncomfortable and even feel a bit ugly. The iOS 16 lock screen also supports Live Events, making it easier for users to stay informed about what's going on from the lock screen, as well as live text enhancements, iCloud Shared Gallery, recall/editable messages, new CarPlay in-cars, and more. About OriwhizORIWHIZ is a mobile phone LCD/OLED screen and other phone spare parts' manufacturer（factory）,we offer OEM and ODM service to customers all over the world.Our products have ISO9001,CE,FCC,ROSH certificate.All of our products are manufactured by brand new materials and 100% quality test before shipping.We promise our best quality products will be delivered to our clients on time.We have professional customer service and welcome inquiry any time. Our main products include:iPhone LCD,iPhone Charging Port,iPhone Front Camera,iPhone Back Camera,iPhone ear speaker,iPhone Battery,etc.Not only iPhone related products,we also have Samsung,Oppo,Vivo,etc.