security kernel UNIX/32V Version 7 Unix 1980s 1980 86-DOS AOS/VS (Data General) CTOS MVS/System Product (MVS/SP) V1 NewDos/80 OS-9 RS-DOS SOS Virtual Machine/System Product (VM/SP) Xenix 1981 Acorn MOS Aegis SR1 (First Apollo/DOMAIN systems shipped on March 27) Business Operating System CP/M-86 iMAX – OS for Intel's iAPX 432 capability machine MS-DOS PC DOS Pilot (Xerox Star operating system) UNOS UTS Xinu first release 1982 Commodore DOS LDOS (By Logical Systems, Inc. – for the Radio Shack TRS-80 Models I, II & III) pSOS QNX Stratus VOS Sun UNIX (later SunOS) 0.7 Ultrix Unix System III 1983 Coherent DNIX EOS GNU (project start) Lisa Office System 7/7 LOCUS – UNIX compatible, high reliability, distributed OS MVS/System Product V2 (MVS/Extended Architecture, MVS/XA) Novell NetWare (S-Net) ProDOS STOP – TCSEC A1-class, secure OS for SCOMP hardware SunOS 1.0 1984 AMSDOS Mac OS (System 1.0) MSX-DOS PC/IX Sinclair QDOS QNX UNICOS Venix 2.0 Virtual Machine/Extended Architecture Migration Assistance (VM/XA MA) 1985 AmigaOS Atari TOS DG/UX DOS Plus Graphics Environment Manager MIPS RISC/os Oberon – written in Oberon SunOS 2.0 Version 8 Unix Virtual Machine/Extended Architecture System Facility (VM/XA SF) Windows 1.0 Windows 1.01 Xenix 2.0 1986 AIX 1.0 Cronus distributed OS GEMSOS – TCSEC A1-class, secure kernel for BLACKER VPN & GTNP GEOS GS-OS Genera 7.0 HP-UX SunOS 3.0 Version 9 Unix 1987 Arthur (much improved version came in 1989 under the name RISC OS) BS2000 V9.0 IRIX (3.0 is first SGI version) MDOS MINIX 1.0 OS/2 (1.0) PC-MOS/386 Topaz – semi-distributed OS for DEC Firefly workstation written in Modula-2+ and garbage collected Windows 2.0 1988 A/UX (Apple Computer) AOS/VS II (Data General) CP/M rebranded as DR-DOS Flex machine – tagged, capability machine with OS and other software written in ALGOL 68RS HeliOS 1.0 KeyKOS – capability-based microkernel for IBM mainframes with automated persistence of app data LynxOS Mac OS (System 6) MVS/System Product V3 (MVS/Enterprise Systems Architecture, MVS/ESA) OS/2 (1.1) OS/400 RISC iX SpartaDOS X SunOS 4.0 TOPS-10 7.04 (Last stable release, July 1988) Virtual Machine/Extended Architecture System Product (VM/XA SP) VAX VMM – TCSEC A1-class, VMM for VAX computers (limited use before cancellation) 1989 Army Secure Operating System (ASOS) – TCSEC A1-class secure, real-time OS for Ada applications TSX-32 Version 10 Unix Xenix 2.3.4 (Last stable release) 1990s 1990 AIX 3.0 AmigaOS 2.0 BeOS (v1) DOS/V Genera 8.0 LOCK – TCSEC A1-class secure system with kernel & hardware support for type