uNETix

uNETix is an early implementation of UNIX for IBM PC systems.

more

Ultrix

Ultrix^[1] (officially all-caps ULTRIX) is the brand name of Digital Equipment Corporation's (DEC) discontinued native Unix operating systems for the PDP-11, VAX, MicroVAX^[2] and DECstations.

more

SerenityOS

SerenityOS is a free and open source desktop operating system that has been in continuous development since 2018.

more

SunOS

SunOS is a Unix-branded operating system developed by Sun Microsystems for their workstation and server computer systems.

more

SOX

SOX is a discontinued UNIX clone. It was developed from scratch in Brazil, in the late 1980s, by Computadores e Sistemas Brasileiros S/A (now Cobra Tecnologia), under the leadership of Ivan da Costa Marques.

more

RISC iX

RISC iX is a discontinued Unix operating system designed to run on a series of workstations based on the Acorn Archimedes microcomputer.^[1]

more

Redox

Redox is a Unix-like microkernel operating system written in the programming language Rust, which has a focus on safety, stability, and performance.^[4][5][6]

more

QNX

QNX (/ˌkjuː ˌɛn ˈɛks/ or /ˈkjuːnɪks/) is a commercial Unix-like real-time operating system, aimed primarily at the embedded systems market.

more

NeXTSTEP

NeXTSTEP is a discontinued object-oriented, multitasking operating system based on the Mach kernel and the UNIX-derived BSD. It was developed by NeXT Computer, founded by Steve Jobs, in the late 1980s and early 1990s and was initially used for its range of proprietary workstation computers such as the NeXTcube.

more

MOS

Mobile Operating System (MOS; Russian: Моби́льная Операцио́нная Систе́ма (МОС)) is an operating system, a Soviet clone of Unix from the 1980s.^[1]

more

MNOS

MNOS (MobilNaya Operatsionnaya Sistema, МобильНая Операционная Система (МНОС), or Portable Operating System) is a Unix-like operating system developed in the Soviet Union.

more

MINIX

MINIX (from mini-Unix) is a Unix-like operating system based on a microkernel architecture.

more

LynxOS

The LynxOS RTOS is a Unix-like real-time operating system from Lynx Software Technologies (formerly "LynuxWorks").

more

Linux

Linux (/ˈlɪnʊks/, LIN-uuks)^[11] is both an open-source Unix-like kernel and a generic name for a family of open-source Unix-like operating systems based on the Linux kernel,^[12] an operating system kernel first released on September 17, 1991, by Linus Torvalds.^[13][14][15] 

more

GNU Hurd

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

more

Domain/OS

Domain/OS is the discontinued operating system used by the Apollo/Domain line of workstations manufactured by Apollo Computer.

more

DNIX

DNIX (original spelling: D-Nix) is a discontinued Unix-like real-time operating system from the Swedish company Dataindustrier AB (DIAB).

more

DEMOS

DEMOS (Dialogovaya Edinaya Mobilnaya Operatsionnaya Sistema: Russian: Диалоговая Единая Мобильная Операционная Система, ДЕМОС, lit. 'Interactive Unified Portable Operating System') is a Unix-like operating system developed in the Soviet Union.

more

Darwin

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.

more

Coherent

Coherent is a clone of the Unix operating system for IBM PC compatibles and other microcomputers, developed and sold by the now-defunct Mark Williams Company (MWC).

more