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iOS 4 is the fourth major release of the iOS mobile operating system developed by Apple Inc., being the successor to iPhone OS 3.It was announced at the Apple Special Event on April 8, 2010, and released on June 21, 2010. iOS 4 was the first version branded as "iOS" rather than "iPhone OS", [1] due to the release of the iPad.
iOS enforces strict sandboxing to maintain security and privacy. Apps are generally limited to accessing their own containers and specific system-provided directories, such as the Photos library. To access files outside of their sandbox, iOS uses mechanisms like document pickers, file providers, and app extensions.
iOS version history. iOS is a mobile operating system developed by Apple Inc. and was first released as iPhone OS in June 2007, coinciding with the launch of the first generation iPhone. [1] iPhone OS was renamed iOS following the release of the iPad, starting with iOS 4. [2] With iOS 13, Apple began offering a separate operating system, iPadOS ...
Obsolete, unsupported [citation needed] iPhone OS 3 (stylized as iPhone OS 3.0) is the third major release of the iOS mobile operating system developed by Apple Inc., succeeding iPhone OS 2. It was announced on March 17, 2009, and was released on June 17, 2009. It was succeeded by iOS 4 on June 21, 2010, dropping the "iPhone OS" naming convention.
However, unlike more modern iOS devices, this update again does not provide iPhone 3G owners with access to important features, in this case, the Game Center application. [19] On November 22, 2010, the iPhone 3G received the iOS 4.2 software update (as iOS 4.2.1), which introduced features such as YouTube voting, and security fixes.
watchOS is the operating system of the Apple Watch, developed by Apple Inc. It is based on iOS, the operating system used by the iPhone, and has many similar features. [4] It was released on April 24, 2015, along with the Apple Watch, the only device that runs watchOS. watchOS exposes an API called WatchKit for developer use.
iPadOS 14 (iPadOS version derived from iOS 14) iOS 14 is the fourteenth major release of the iOS mobile operating system developed by Apple for the iPhone and iPod touch lines. Announced at the company's Worldwide Developers Conference on June 22, 2020 as the successor to iOS 13, it was released to the public on September 16, 2020. [4][5] It ...
The iPhone is a line of smartphones developed and marketed by Apple that run iOS, the company's own mobile operating system.The first-generation iPhone was announced by then–Apple CEO Steve Jobs on January 9, 2007, at Macworld 2007, and launched later that year.