XNU is a hybrid kernel combining the Mach kernel developed at Carnegie Mellon University with components from FreeBSD and a C++ API for writing drivers called IOKit. XNU runs on x86_64 and ARM64 for both single processor and multi-processor configurations.

XNU ("X is Not Unix") is the computer operating system (OS) kernel developed at Apple Inc. since December 1996 for use in the Mac OS X (now macOS) operating system and released as free and open-source software as part of the Darwin OS, which, in addition to being the basis for macOS, is also the basis for Apple TV Software, iOS, iPadOS, watchOS,...

XNU is an acronym for X is Not Unix. XNU is a hybrid kernel combining the Mach kernel developed at Carnegie Mellon University with components from FreeBSD and a C++ API for writing drivers called IOKit. XNU runs on x86_64 for …

Apr 4, 2025 · XNU is a unique hybrid kernel that combines a Mach microkernel core with components of BSD Unix. This design inherits the rich legacy of Mach (originating from 1980s microkernel research) and the robust stability and POSIX compliance of BSD.

没想到，国庆节这天醒来一看，素以“封闭”闻名的苹果公司，竟然在 GitHub 上公布了旗舰操作系统的 XNU 内核源代码。 XNU代表的含义是“XNU is Not Unix”（XNU不是Unix），这是一个类似Unix的内核，用在各类苹果 Darwin 操作系统中，包括电脑系统 macOS （以及早先的版本OS X），还有移动操作系统 iOS。 通过访问内核代码，苹果可以让开发者更容易理解设备如何与上层软件互相配合。 现在还很难说开发者能从中获益多少，但起码是件好事。 Twitter上各路网友 …

Apr 7, 2025 · XNU is a unique hybrid kernel that combines a Mach microkernel core with components of BSD Unix. This design inherits the rich legacy of Mach (originating from 1980s microkernel research) and the robust stability and POSIX compliance of BSD.

Sep 23, 2020 · It is for the same reason that Ubuntu OS is often called "Linux" or RaspberryPi OS is called "Linux" - Linux is not an OS. It is a kernel that can be used as the core of your OS. Which is why we call Android an OS even though it uses the Linux kernel. Darwin, however, is an OS, not just a kernel (the kernel is called xnu).

XNU kernel is part of the Darwin operating system for use in OS X and iOS operating systems. XNU is an acronym for XNU is Not Unix. XNU is a hybrid kernel combining the Mach kernel developed at Carnegie Mellon University with components from FreeBSD and C++ API for writing drivers called IOKit.

Oct 2, 2023 · XNU is the intermediate layer between the software (like iOS/macOS) and the hardware (components of an iPhone/MacBook). It is one of the first pieces of software that is …

Oct 26, 2024 · XNU kernel is part of the Darwin operating system for use in macOS and iOS operating systems.