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[9] iOS formerly also powered iPads until iPadOS was introduced in 2019, and the iPod Touch line of devices until its discontinuation. [10] iOS is the world's second most widely installed mobile operating system, after Android. As of December 2023, Apple's App Store contains more than 3.8 million iOS mobile apps. [11] iOS is based on macOS.
Apple silicon is a series of system on a chip (SoC) and system in a package (SiP) processors designed by Apple Inc., mainly using the ARM architecture.They are the basis of Mac, iPhone, iPad, Apple TV, Apple Watch, AirPods, AirTag, HomePod, and Apple Vision Pro devices.
Following the acquisition, Apple signed a rare "Architecture license" with ARM, allowing the company to design its own core, using the ARM instruction set. [31] The first Apple-designed chip was the A4, released in 2010, which debuted in the first-generation iPad, then in the iPhone 4.
As of 2023, there are six supported software platforms: iOS, iPadOS, watchOS, tvOS, macOS and visionOS. Prior to the introduction of the Macintosh in early 1984, Apple had several operating systems for the Apple II series, Apple SOS for the Apple III series, and Lisa OS and MacWorks XL for the Apple Lisa series; those were introduced between ...
UIKit is an application development environment and graphical user interface toolkit from Apple Inc. used to build apps for the iOS, iPadOS, and tvOS operating systems. [1] UIKit provides an abstraction layer of iOS, the operating system for the iPhone, iPod Touch, and iPad.
iOS features a hardened memory allocator known as kalloc_type that was introduced in iOS 15. Since the XNU kernel is primarily written in memory unsafe languages such as C and C++ , [ 15 ] kalloc_type is designed to mitigate the large amount of vulnerabilities that result from the use of these languages in the kernel.
Darwin is the core Unix-like operating system of macOS, iOS, watchOS, tvOS, iPadOS, audioOS, visionOS, and bridgeOS.It previously existed as an independent open-source operating system, first released by Apple Inc. in 2000.
The M3's Unified Memory Architecture (UMA) is similar to the M2 generation; M3 SoCs use 6,400 MT/s LPDDR5 SDRAM. As with prior M series SoCs, this serves as both RAM and video RAM. The M3 has 8 memory controllers, the M3 Pro has 12 and the M3 Max has 32. Each controller is 16-bits wide and is capable of accessing up to 4 GiB of memory. [14]