|
The iPhone Wiki is no longer updated. Visit this article on The Apple Wiki for current information. |
iOS
 | |
|---|---|
| Company / developer | Apple Inc. |
| Programmed in |
ARM assembly C C++ Objective-C |
| OS family | Unix-like (OS X) |
| Working state | Current |
| Source model |
Closed source (with some open source components) |
| Initial release | Jun 27, 2007 |
| Update method | iTunes and OTA Updates |
| Package manager | App Store |
| Supported platforms | iPhone, iPod touch, iPad, iPad mini, Apple TV |
| Kernel type | Hybrid (XNU) |
| Default user interface | SpringBoard |
| License | Proprietary |
| Official website | www.apple.com |
iOS, formerly known as iPhone OS (and just Mac OS X), is the operating system for the iPhone, iPod touch, iPad, iPad mini and Apple TV. iOS has four abstraction layers: the Core OS layer, the Core Services layer, the Media layer, and the Cocoa Touch layer. The OS takes ~350MB of the device's total memory storage, this means that users will not get their full storage space.
In iOS 4.0+, it takes up ~800MB of space, changing the root partition from 500MB to 1000MB, due to the 2x graphics that have been added for the iPhone 4 (iPhone3,1) and iPod touch 4G retina displays.
In iOS 5.0, Apple began pushing towards a computer-less experience for iOS. (e.g.- Devices can be activated and updated over the air.) In addition, multitasking gestures are now enabled by default.
In iOS 6.0, it takes up ~850MB of space A4/A5/A5 Rev A/A5X and ~1.2GB for A6/A6X.
In iOS 7.0, it takes up ~1.2GB of space A4/A5/A5 Rev A/A5X, ~1.3GB for A6/A6X and ~1.5GB for A7/A7 variant.
In iOS 8.0, it takes up ~1.7GB of space A5/A5 Rev A/A5X, ~1.8GB for A6/A6X, 2.0GB for A7 and ~2.0-2.3GB for A8.
