Mach (kernel) and Unix

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Difference between Mach (kernel) and Unix

Mach (kernel) vs. Unix

Mach is a kernel developed at Carnegie Mellon University by Richard Rashid and Avie Tevanian to support operating system research, primarily distributed and parallel computing. Unix (trademarked as UNIX) is a family of multitasking, multi-user computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.

Berkeley Software Distribution

The Berkeley Software Distribution or Berkeley Standard Distribution (BSD) is a discontinued operating system based on Research Unix, developed and distributed by the Computer Systems Research Group (CSRG) at the University of California, Berkeley.

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Computer network

A computer network is a set of computers sharing resources located on or provided by network nodes.

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Darwin (operating system)

Darwin is the core Unix-like operating system of macOS (previously OS X and Mac OS X), iOS, watchOS, tvOS, iPadOS, audioOS, visionOS, and bridgeOS.

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FreeBSD

FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution (BSD).

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GNU Hurd

GNU Hurd is a collection of microkernel servers written as part of GNU, for the GNU Mach microkernel.

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Hybrid kernel

A hybrid kernel is an operating system kernel architecture that attempts to combine aspects and benefits of microkernel and monolithic kernel architectures used in operating systems.

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IBM

International Business Machines Corporation (using the trademark IBM), nicknamed Big Blue, is an American multinational technology company headquartered in Armonk, New York and present in over 175 countries.

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Inter-process communication

In computer science, inter-process communication (IPC), also spelled interprocess communication, are the mechanisms provided by an operating system for processes to manage shared data.

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Kernel (operating system)

The kernel is a computer program at the core of a computer's operating system and generally has complete control over everything in the system.

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MacOS

macOS, originally Mac OS X, previously shortened as OS X, is an operating system developed and marketed by Apple since 2001.

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Microkernel

In computer science, a microkernel (often abbreviated as μ-kernel) is the near-minimum amount of software that can provide the mechanisms needed to implement an operating system (OS).

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Microsoft

Microsoft Corporation is an American multinational corporation and technology company headquartered in Redmond, Washington.

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Monolithic kernel

A monolithic kernel is an operating system architecture with the entire operating system running in kernel space.

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Operating system

An operating system (OS) is system software that manages computer hardware and software resources, and provides common services for computer programs.

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OSF/1

OSF/1 is a variant of the Unix operating system developed by the Open Software Foundation during the late 1980s and early 1990s.

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Pipeline (Unix)

In Unix-like computer operating systems, a pipeline is a mechanism for inter-process communication using message passing.

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Sun Microsystems

Sun Microsystems, Inc. (Sun for short) was an American technology company that sold computers, computer components, software, and information technology services and created the Java programming language, the Solaris operating system, ZFS, the Network File System (NFS), and SPARC microprocessors.

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System call

In computing, a system call (commonly abbreviated to syscall) is the programmatic way in which a computer program requests a service from the operating system on which it is executed.

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User space and kernel space

A modern computer operating system usually uses virtual memory to provide separate address spaces, or separate regions of a single address space, called user space and kernel space.

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