enforcement MVS/ESA SP Version 4 Novell NetWare 3 OS/2 1.3 OSF/1 PC/GEOS Windows 3.0 Virtual Machine/Enterprise Systems Architecture (VM/XA ESA) 1991 Amoeba – microkernel-based, POSIX-compliant, distributed OS Linux 0.01-0.1 Mac OS (System 7) MINIX 1.5 PenPoint OS RISC OS 3 Trusted Xenix – rewritten & security enhanced Xenix evaluated at TCSEC B2-class 1992 386BSD 0.1 Amiga Unix 2.01 (Latest stable release) AmigaOS 3.0 BSD/386, by BSDi and later known as BSD/OS. LGX OpenVMS V1.0 (First OpenVMS AXP (Alpha) specific version, November 1992) OS/2 2.0 (First i386 32-bit based version) Plan 9 First Edition (First public release was made available to universities) RSTS/E 10.1 (Last stable release, September 1992) SLS Solaris 2.0 (Successor to SunOS 4.x; based on SVR4 instead of BSD) Windows 3.1 1993 IBM 4690 Operating System FreeBSD NetBSD Novell NetWare 4 Newton OS Open Genera 1.0 OS/2 2.1 Slackware 1.0 Spring Windows NT 3.1 (First Windows NT kernel public release) 1994 AIX 4.0, 4.1 IBM MVS/ESA SP Version 5 NetBSD 1.0 (First multi-platform release, October 1994) OS/2 3.0 Red Hat RISC OS 3.5 SPIN – extensible OS written in Modula-3 1995 Digital UNIX (aka Tru64 UNIX) OpenBSD OS/390 Plan 9 Second Edition (Commercial second release version was made available to the general public.) Ultrix 4.5 (Last major release) Windows 95 1996 AIX 4.2 Debian 1.1 JN – microkernel OS for embedded, Java apps Mac OS 7.6 (First officially-named Mac OS) OS/2 4.0 Palm OS RISC OS 3.6 Windows NT 4.0 Windows CE 1.0 1997 AIX 4.3 DR-WebSpyder 1.0 Inferno Mac OS 8 MINIX 2.0 Nemesis RISC OS 3.7 SkyOS Windows CE 2.0 1998 DR-WebSpyder 2.0 Junos Novell NetWare 5 RT-11 5.7 (Last stable release, October 1998) Solaris 7 (first 64-bit Solaris release – names from this point drop "2.", otherwise would've been Solaris 2.7) Windows 98 1999 AROS (Boot for the first time in Stand Alone version) Inferno Second Edition (Last distribution (Release 2.3, ) from Lucent's Inferno Business Unit) Mac OS 9 OS/2 4.5 RISC OS 4 Windows 98 (2nd edition) 2000s 2010s 2020s See also Comparison of operating systems List of operating systems Comparison of real-time operating systems Timeline of DOS operating systems Timeline of Linux distributions (Diagram 1992–2010) References External links UNIX History – a timeline of UNIX 1969 and its descendants at present Concise Microsoft O.S. Timeline – a color-coded concise timeline for various Microsoft operating systems (1981–present) Full Form of Computer - Full