Different type of OS in market || 2021
Proprietary [ edit ] Acorn Computers [ edit ] Arthur ARX MOS RISC iX RISC OS Amazon [ edit ] Fire OS Amiga Inc. [ edit ] AmigaOS AmigaOS 1.0-3.9 (Motorola 68000) AmigaOS 4 (PowerPC) Amiga Unix (a.k.a. Amix) Amstrad [ edit ] AMSDOS Contiki CP/M 2.2 CP/M Plus SymbOS Apple Inc. [ edit ] Apple II family Apple DOS Apple Pascal ProDOS GS/OS GNO/ME Contiki Apple III Apple SOS Apple Lisa Apple Macintosh Classic Mac OS A/UX ( UNIX System V with BSD extensions) Copland MkLinux Pink Rhapsody macOS (formerly Mac OS X and OS X) macOS Server (formerly Mac OS X Server and OS X Server) Apple Network Server IBM AIX (Apple-customized) Apple MessagePad Newton OS iPhone and iPod Touch iOS (formerly iPhone OS) iPad iPadOS Apple Watch watchOS Apple TV tvOS Embedded operating systems A/ROSE bridgeOS iPod software (unnamed embedded OS for iPod ) Unnamed NetBSD variant for Airport Extreme ...