OS/2 is a proprietary computer operating system for x86 and PowerPC based personal computers. It was created and initially developed jointly by IBM and...

iPhone OS 2 is the second major release of the iOS mobile operating system developed by Apple Inc., being the successor to iPhone OS 1. It was the first...

iPhone OS was renamed iOS following the release of the iPad, starting with iOS 4. With iOS 13, Apple began offering a separate operating system, iPadOS, for...

Mac OS (originally System Software; retronym: Classic Mac OS) is the series of operating systems developed for the Macintosh family of personal computers...

HarmonyOS (HMOS) (Chinese: 鸿蒙; pinyin: Hóngméng; trans. "Vast Mist") is a distributed operating system developed by Huawei for smartphones, tablets, smart...

first-generation iPhone. It was succeeded by iPhone OS 2 on July 11, 2008. Development of iPhone OS 1.0 and the first generation of iPhone hardware was...

Wear OS, formerly Android Wear, is a closed-source Android distribution designed for smartwatches and other wearable computers, developed by Google. Wear...

the only device that runs watchOS. watchOS exposes an API called WatchKit for developer use. The second version, watchOS 2, included support for native...

Team OS/2 was an advocacy group formed to promote IBM's OS/2 operating system. Originally internal to IBM with no formal IBM support, Team OS/2 successfully...

iPhone OS 3 (stylized as iPhone OS 3.0) is the third major release of the iOS mobile operating system developed by Apple Inc., succeeding iPhone OS 2. It...

Sailfish OS is a paid Linux-based operating system based on free software, and open source projects such as Mer as well as including a closed source UI...

Mac OS X Jaguar (version 10.2) is the third major release of macOS, Apple's desktop and server operating system. It superseded Mac OS X 10.1 and preceded...

The operating system used is Windows 3.0/3.1/95 and a graphical OS called Towns OS, based on MS-DOS and the Phar Lap DOS extender (RUN386.EXE). Most...

announced their user interface for Android, Nothing OS. Nothing OS 1.5 was released with version 1.5.2 on 16 February 2023, powered by Android 13. It has...

Mac OS 9 is the ninth and final major release of the classic Mac OS operating system for Macintosh computers, made by Apple Computer. Introduced on October...

of Windows (NT and CE families), OS/2,, eComStation, ArcaOS, and ReactOS. In some versions of Windows (CE .NET 4.2, CE 5.0 and Embedded CE 6.0) it is...

Palm OS (also known as Garnet OS) is a discontinued mobile operating system initially developed by Palm, Inc., for personal digital assistants (PDAs)...

including Linux and macOS. From PC DOS 2.0 in 1982, all succeeding Microsoft operating systems, including Microsoft Windows, and OS/2 also have included them...

device (such as a graphics adapter), especially on Microsoft Windows and OS/2 operating systems. The BMP file format is capable of storing two-dimensional...

Zorin OS is a Linux distribution based on Ubuntu with both free and paid versions. It uses a GNOME and XFCE 4 desktop environment by default, although...

similar to iOS 7 and OS X Yosemite and adds features such as Peer-To-Peer AirPlay. Version 8.0 was skipped. Apple TV Software 7.2.2 (iOS 8) is currently...

The Vivo X5 was the first device to run Funtouch OS 2.0 in 2014. Although it is based on Android 4.4.2, the operating system has been modified to provide...

services. Current Fire OS version list: Fire OS 1.x Fire OS 2.x Fire OS 3.x Fire OS 4.x Fire OS 5.x Fire OS 6.x Fire OS 7.x Flyme OS is an operating system...

ArcaOS is a proprietary operating system based on OS/2, developed and marketed by Arca Noae, LLC under license from IBM. It was first released in 2017...

code in 2005 due to a lack of interest in Access Control Lists. In OS/2 version 1.2 and later, the High Performance File System was designed with extended...

known as Steam Machines, to run SteamOS for game streaming and local play. SteamOS versions 1.0, released in 2013, and 2.0, released in 2015, were based on...

work on a revamped version of IBM and Microsoft's OS/2 operating system known as "NT OS/2". NT OS/2 was intended to be a secure, multi-user operating...

iPhone OS 1 – derived from "Mac OS X" (now known as "macOS") iPhone OS 2 iPhone OS 3 iOS 4 – continued from iPhone OS 3 iOS 5 iOS 6 iOS 7 iOS 8 iOS 9 iOS 10...

RISC OS Fire OS AmigaOS AmigaOS 1.0-3.9 (Motorola 68000) AmigaOS 4 (PowerPC) Amiga Unix (a.k.a. Amix) AMSDOS Contiki CP/M 2.2 CP/M Plus SymbOS Apple...

In the graphical Workplace Shell (WPS) of the OS/2 operating system, a shadow is an object that represents another object. A shadow is a stand-in for any...