iOS - Operating System

531 words [ 25 Screenshots ] [ 18 Versions ] [ 1 Weblinks ] - Last update: 2023-12-22 Page created: 2023-12-19 [SB]



iOS Logo The development of the iPhone OS operating system is closely linked to the development of the iPhone smartphone by Apple. The development of the operating system, which is specially designed to the requirements of the iPhone, began in parallel with the hardware development. This ensured the optimal adaptation of the software to the hardware from the start.

The iPhone project started at Apple under the leadership of Steve Jobs in early 2005. It was an ambitious project aiming to create a superior smartphone compared to those available at that time. Jobs and his team worked on a device that combined the functionality of an iPod with the capabilities of a mobile phone and featuring internet applications. This included integrating the Safari browser for mobile surfing, email client, telephony, and much more.

iOS is a closed operating system exclusively running on Apple devices with ARM-based processors. These include the iPhone, iPod Touch and iPad in various models. The iOS kernel is based on a microkernel architecture to ensure high security. It employs various security mechanisms like sandboxes for apps, restricting their access to specific resources and protecting the system from potential threats.

iOS software is tightly integrated with the processor architecture to ensure optimal performance and energy efficiency. The CPU architecture in iPhones has significantly evolved over the years. The iPhone 4 introduced the Apple-designed A4 chip in 2010, marking Apple's first proprietary chip development.

After years of development and innovation, the first iPhone running on iPhone OS was finally unveiled by Steve Jobs at the Macworld Conference in San Francisco, California, in January 2007. This event marked a significant milestone in the design and the way mobile devices could be utilized. In retrospect, it established a new standard for smartphones, triggering a lasting boom in the smartphone industry in the following years.

The device's operation is enabled through touches and multitouch gestures. Besides fundamental features, iPhone OS offered many pre-installed apps unified with a user-friendly interface, showcasing a novel form of interaction and navigation.

With the introduction of the Apple App Store in July 2008, Apple created its own app ecosystem and enthused numerous developers. Users could now install third-party apps, not originating from Apple, starting from iPhone OS 2.0. Before the App Store's launch, adding or removing apps on the iPhone was not possible. This step immensely boosted the further distribution of iPhones.

The popularity of the iPhone and iPad, coupled with the growing number of apps in the Apple App Store, contributed to the global distribution of one of the most popular smartphones. Typically, Apple ensures that iPhones and iPads receive regular updates to new iOS versions as long as the hardware meets the requirements. This ensures that mobile devices are consistently provided with the latest features, security patches, and bug fixes.

Initially, iPhone OS, later rebranded as iOS, was utilized on both iPhones and iPads. However, this significantly changed with the release of iPadOS 13 in September 2019. This resulted in increased specialization of the operating system for the use cases and requirements of the iPad. Apps are optimized for the larger screen and landscape mode. Moreover, iPadOS introduced an improved multitasking environment tailored for multimedia applications.



iOS - Operating System screenshot 1iOS - Operating System screenshot 2iOS - Operating System screenshot 3iOS - Operating System screenshot 4
iPhone 14 with iOS 16.6, locked screeniPhone 14 with iOS 16.6, screen unlockiPhone 14 with iOS 16.6, Home screeniPhone 14 with iOS 16.6, Home screen
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iPhone 14 with iOS 16.6, Control CenteriPhone 14 with iOS 16.6, PhoneiPhone 14 with iOS 16.6, Apple App StoreiPhone 14 with iOS 16.6, Apple App Store
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iPhone 14 with iOS 16.6, App SwitcheriPhone 14 with iOS 16.6, Safari BrowseriPhone 14 with iOS 16.6, Share function in Safari BrowseriPhone 14 with iOS 16.6, Spotlight Search
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iPhone 14 with iOS 16.6, SettingsiPhone 14 with iOS 16.6, SettingsiPhone 14 with iOS 16.6, SettingsiPhone 14 with iOS 16.6, Settings
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iPhone 14 with iOS 16.6, Settings, GeneraliPhone 14 with iOS 16.6, Settings, AboutiPhone 14 with iOS 16.6, Settings, Update iOS operating systemiPhone 14 with iOS 16.6, Settings, authenticate with Face ID and Passcode
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iPhone 14 with iOS 16.6, Settings, SafariiPhone 14 with iOS 16.6, Settings, SafariiPhone 14 with iOS 16.6, Settings, SafariiPhone 14 with iOS 16.6, Settings, App Store
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iPhone 14 with iOS 16.6, App Library


Date - Version
2007 June - iPhone OS 1.0 introducing first iPhone
2008 July - iPhone OS 2.0 introducing Apple App Store and first iphone supporting 3G mobile networks
2009 June - iPhone OS 3.0 introducing Cut, Copy & Paste
2010 April - iPhone OS 3.2 first iPad, optimzed for screen size
2010 June - iOS 4.0 introducing multitasking
2011 October - iOS 5.0 introducing Siri, voice assistant, iMessage, iCloud and notification center
2012 September - iOS 6.0 first iPhone 5 supporting 4G mobile networks
2013 September - iOS 7.0 introducing new design and Touch ID
2014 September - iOS 8.0
2015 September - iOS 9.0 introducing multitasking for iPad
2016 September - iOS 10.0
2017 September - iOS 11.0 introducing Face ID
2018 September - iOS 12.0
2019 September - iOS 13.0, iPadOS 13 introducing Dark Mode
2020 September - iOS 14.0, supporting 5G mobile networks with iPhone 12, iPadOS 14 introducing Widgets on Home Screen
2021 September - iOS 15.0, iPadOS 15
2022 September - iOS 16.0, iPadOS 16
2023 September - iOS 17.0, iPadOS 17


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