Top Document: Unix - Frequently Asked Questions (6/7) [Frequent posting] Previous Document: Identifying your Unix flavor. Next Document: Real-time Unices. See reader questions & answers on this topic! - Help others by sharing your knowledge Date: Tue Aug 15 15:14:00 EDT 1995 X-Version: 2.9 6.6) Brief notes on some well-known (commercial/PD) Unices. (I am not at all satisfied with this section, unfortunately I have neither the time nor the documents to make it much better (wrt contents). Should only list Unices known by a reasonably wide audience. Small and non-US Unices welcome, e.g. Eurix. In need of reformatting) This section lists (in alphabetical order) some of the better known Unices along with a brief description of their nature. Unfortunately, it's out-of-date almost by definition... (sorted alpha, ignoring numbers and other chars) AIX: IBM's Unix, based on SVR2 (later up to SVR3.2?) with varying degrees of BSD extensions, for various hardwares. Proprietary system admin (SMIT). Both 850 and Latin-1 CPs. Quite different from most Unices and among themselves. Newsgroup: comp.unix.aix. - 1.x (for 386 PS/2) - 2.x (for PC RTs) - 3.x (for RS/6000), paging kernel, logical volume manager, i18n; 3.2 adds TLI/STREAMS. SV-based with many enhancements. 4.1 is latest (includes support for PowerPC?) - AIX/ESA, runs native on S/370 and S/390 mainframes, based on OSF/1. AIX was to have been base for OSF/1 until Mach was chosen instead. I hope this subsection is converging :-) AOS (IBM): 4.3BSD port to IBM PC RT (for educational institutes). Don't confuse with DG's proprietary OS of same name. Arix: SV A3000UX (Commodore): 68030-based SVR4 Unix (?) for the Amiga. A/UX (Apple): SV with Berkeley enhancements, NFS, Mac GUI. System 6 (later System 7) runs as guest of A/UX (opposite of MachTen). Newsgroup: comp.unix.aux. - 2.0: SVR2 with 4.2BSD, system 6 Mac applications. - 3.0 (1992): SVR2.2 with 4.3BSD and SVR3/4 extensions; X11R4, MacX, TCP/IP, NFS, NIS, RPC/XDR, various shells, UFS or S5FS. System 7 applications. - 4.0 will have/be OSF/1. But I hear Apple has decided to drop A/UX (will go for AIX now that they're together with IBM on the PPC) 3B1 (680x0): SV-based, done by Convergent for AT&T. Newsgroup: comp.sys.3b1. BNR/2: stands for BSD Net/2 Release? Includes NetBSD/1, FreeBSD. BOS for Bull's DPX/2 (680x0) - V1 (1990): SVR3 with BSD extensions (FFS, select, sockets), symmetric MP, X11R3 - V2 (1991): adds job control, disk mirroring, C2 security, DCE extensions - There's also BOS/X, and AIX-compatible Unix for Bull's PPC workstations. How it relates to above two is unknown. 386BSD: Jolitz's port of Net/2 software. Posix, 32-bit, still in alpha (now version 0.1). BSD/386 (80386): from BSDI, with source (augmented Net2 software) Newsgroup: comp.unix.bsd. Chorus/MiXV: Unix SVR3.2 (SVR4) over Chorus nucleus, ABI/BCS. Coherent (Mark Williams Company): For 80286. Unix clone compatible with V7, some SVR2 (IPC). V4.0 is 32-bit. Newsgroup: comp.os.coherent. Mark Williams closed down early '95. Consensys: SVR4.2 CTIX: SV-based, from Convergent D-NIX: SV DC/OSx (Pyramid): SVR4. Newsgroup: comp.sys.pyramid. DELL UNIX [DELL Computer Corp.]: SVR4 DomainIX: see DomainOS below. DomainOS (Apollo, now HP): proprietary OS; layered on top is BSD4.3 and SVR3 (a process can use either, neither or both). Development now stopped, some features now in OSF/1 (and NT). Now at SR10.4. Name for SR9.* was DomainIX. Newsgroup: comp.sys.apollo. DVIX (NT's DVS): SVR2 DYNIX (Sequent): 4.2BSD-based DYNIX/PTX: SVR3-based EP/IX (Control Data Corp.): for MIPS 2000/3000/6000/4000; based on RISC/OS 4 and 5, POSIX-ABI-compliant. SVR3, SVR4 and BSD modes. Esix (80386): pure SVR4, X11, OpenLook (NeWS), Xview Eurix (80?86): SVR3.2 (Germany) FreeBSD: 386bsd 0.1 with the patchkit applied, and many updated utilities. FTX: Stratus fault-tolerant OS (68K or i860-i960 hardware) Generics UNIX (80386): SVR4.03 (Germany) GNU Hurd (?): vaporware from the Free Software Foundation (FSF): Unix emulator over Mach 3.0 kernel. Many GNU tools are very popular (emacs) and used in the PD Unices. HELIOS (Perihelion Software): for INMOS transputer and many other platforms. HP-UX (HP): old from S III (SVRx), now SVR2 (4.2BSD?) with SV utilities (they have trouble making up their minds). - 6.5: SVR2 - 7.0: SVR3.2, symlinks - 7.5 - 8.0: BSD based? for HP-9000 CISC (300/400) and RISC (800/700), shared libs - 9.0: includes DCE Interactive SVR3.2 (80x86): pure SVR3. Interactive has been bought by Sun; will their system survive Solaris? Idris: first Unix clone by Whitesmith. A small Unix? For INMOS transputer and others?. IRIX (SGI): Version 4: SVR3.2, much BSD. Version 5.x (current is 5.2) is based on SVR4. Newsgroup: comp.sys.sgi. Linux (386/486/586): Unix under GPL (not from FSF, though). Available with sources. POSIX compliant w/ SysV and BSD extensions. Being ported to Alpha/AXP and PowerPC (ports for 680x0 Amigas and Ataris already exist; a port is also being done to the MIPS/4000). Newsgroup: comp.os.linux.{admin,announce,development,help,misc}. MacBSD, ?: works on Mac II (directly on H/W). MachTen, Tenon Intersystems: runs as a guest under MacOS; 4.3BSD environment with TCP, NFS. Scaled down version: MachTen Personal. MacMach (Mac II): 4.3BSD over Mach 3.0 microkernel, X11, Motif, GNU software, sources, experimental System 7 as Mach task. Complete with all sources (need Unix license). Mach386: from Mt Xinu. Based on Mach 2.5, with 4.3BSD-Tahoe enhancements. Also 2.6 MSD (Mach Source Distribution). Microport (80x86): pure SVR4, X11, OpenLook GUI Minix (80x86, Atari, Amiga, Mac): Unix clone compatible with V7. Sold with sources. Being POSIXified (sp?). For PCs, and surely many others (eg. INMOS transputer). Newsgroup: comp.os.minix. MipsOS: SVish (RISC/OS, now dropped, was BSDish) more/BSD (VAX, HP 9000/300): Mt Xinu's Unix, based on 4.3BSD-Tahoe. NCR UNIX: SVR4 (4.2?) Net/2 tape (from Berkeley, 1991): BSD Unix, essentially compatible with 4.3BSD, includes only sources free of AT&T code, no low-level code. See 386BSD and BSD/386 above. NetBSD 0.8: is actually 386bsd in a new suit. Ported to [34]86, MIPS, Amiga, Sun, Mac. What is relation to Net/2? - 1.0 came out in '94. NEXTSTEP (Intel Pentium and 86486, Hewlett-Packard PA-RISC, NeXT 68040): BSD4.3 over Mach kernel, own GUI. - 1.x, 2.0, 2.1, 2.2, 3.0, 3.1 (old) - 3.2 (current version, Intel Pentium and 86486, Hewlett-Packard PA-RISC, NeXT 68040) - 3.3 (shipping; SPARC-version available) - 4.0 (to be announced, will include Sun SPARC version and will be OpenStep compliant - no NEXTSTEP for PowerPC or DEC Alpha yet announced (are there plans? NEWS-OS (Sony) - 3.2 OSF/1 (DEC): DEC's port of OSF/1. I think this is now (4/93) available on DEC's latest Alpha AXP (64-bit machine). OSx (Pyramid): Dualport of both SysV.3 and BSD4.3. Newsgroup: comp.sys.pyramid. PC-IX (IBM 8086): SV Plan 9 (AT&T): announced 1992, complete rewrite, not clear how close to Unix it is. Key points: distributed, very small, various hardwares (Sun, Mips, Next, SGI, generic hobbit, 680x0, PCs), C (not C++ as rumors had it), new compiler, "8 1/2" window system (also very small), 16-bit Unicode, CPU/file servers over high speed nets. SCO Xenix (80x86): Versions for XT (not robust!), 286, 386 (with demand paging). Today bulk of code is from System V. Stable product. SCO Unix (80x86): SVR3.2 (stopped taking USL source at this point). Sinix [Siemens]: System V base. Solaris (Sparc, x86): - 1.0: essentially same as SunOS 4.1.1, with OpenWindows 2.0 and DeskSet utilities. - 1.0.1: SunOS 4.1.2 with multiprocessing (kernel not multithreaded); not for 386 - 2.0: (initially announced as SunOS 5.0 in 1988) based on SVR4 (with symmetric MP?), will include support for 386; with OpenWindows 3.0 (X11R4) and OpenLook, DeskSet, ONC, NIS. Both a.out (BSD) and elf (SVR4) formats. Kerberos support. Compilers unbundled! - Solaris is OpenStep compliant (non-NeXT, but with NEXTSTEP API) with latest (1994?) version. - Sun will ship its OpenStep-implementation with project DOE for Solaris. First versions will be for SPARC-based Suns, but a version for Solaris 2.4 for x86 and PowerPC will appear later. SunOS (680x0, Sparc, i386): based on 4.3BSD, includes much from System V. Main Sun achievements: NFS (1984), SunView (1985), NeWS (1986, postscript imaging, now in OpenWindows), OpenLook GUI standard, OpenWindows (NeWS, X11, SunView!). Newsgroup: comp.sys.sun.*. - 3.x: SV IPC package, FIFOs - 4.0.3: lightweight processes, new virtual mem, shared libs - 4.1: STREAMS & TLI, 8-bit clean?, async I/O, ms-dos file system (continues as Solaris -- see above). UHC (80x86): pure SVR4, X11, Motif Ultrix (DEC): based on 4.2BSD with much of 4.3. Newsgroup: comp.unix.ultrix. - 4.4 is latest UNICOS (Cray): System V base. Newsgroup: comp.unix.cray - 5.x, 6,x, 7.0 UnixWare Release 4.2 [Univel]: SVR4.2; over NetWare. Univel no longer exists. UTEK (Tektronix) - 4.0 VOLVIX (Archipel S.A.): UNIX-based OS built around a communication based, distributed, real-time micro-kernel. SVR3.2 system calls, BSD4.4 file/network system calls (VFS, FFS). Also NFS and X11. Vanilla VOLVIX is for transputers. Xenix (80x86): 1st Unix on Intel hardware, based on SVR2 (previously on S III and even V7). Newsgroup: comp.unix.xenix. User Contributions:Comment about this article, ask questions, or add new information about this topic:Top Document: Unix - Frequently Asked Questions (6/7) [Frequent posting] Previous Document: Identifying your Unix flavor. Next Document: Real-time Unices. Part1 - Part2 - Part3 - Part4 - Part5 - Part6 - Part7 - Single Page [ Usenet FAQs | Web FAQs | Documents | RFC Index ] Send corrections/additions to the FAQ Maintainer: tmatimar@isgtec.com (Ted Timar)
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