sponsored by
OSdata.com: Pyramid 




    “Pyramid uses the MIPS chipset, and did the reference port of SysVr4 to those chips under contract to Unix System Laboratories (USL). Pyramid runs Sys V, release 4.2 (with their own enhancements).” —Chad R. Larsone50


OSdata.com is used in more than 300 colleges and universities around the world

Find out how to get similar high web traffic and search engine placement.

Intended purpose

server/mainframe: medium to large scale servers; mainframes

desktop/workstation: workstations (for those with UNIX familiarity)

handheld: not appropriate

real time: not appropriate

Kind of OS: proprietary UNIXe50

    “Note that it does support the mips abi. Unfortunately, virtually nothing is compiled for the mips abi, but instead compiled for the specific os (sgi irix, sony, whatever.)” —Mark Wedele96

Release Date:

Current Version:


Hardware Supported: MIPSe50

Maximum Number of Processors: 24e65

    “This really depends on the model — as far as I know, the OS does not limit the number of processors — only the amount of physical slots.
    “That said, the MIS 2, 4, and 12 have 2, 4, and 12 slots for CPUs. The later MIS-ES series had 2 processors per board (earlier models had 1 cpu/board). So in theory an MIS-ES could have up to 24 processors.
    “The nile 100 has 6 R-bus slots, NS 150 has 12 r-bus slots. At least one of those slots will need a memory board, and another will need an RXI. So that leaves 4 or 10 rbus slots for dpu's (2 cpu/board).
    “The mis-s is an r3000 @ 33 mhz, mis-es is r3000@37, and the niles are r4400 at either 150 or 200 mhz.
    “For the rm1000, the number of processors is not as simple — each node in the system has 1 cpu, but some nodes can be either niles or rm600s. So a one cell rm1000 could have 4 corner nodes (4 cpu's) + 2 nile nodes (22 cpu's). In mile configuration, the niles do not need the RXIs.
    “I have limited this to pyramid proper hardware. The SNI hardware (other rm model numbers) vary system to system — generally, the higher the number, the more power the system can have.” —Mark Wedele65

Number of bits: 32e96


POSIX: compliante96


    “Niles boards include dens (dual ethernet) xni (two wide scsi), and a variety of other comm products (fddi, token ring, …). Fast ethernet currently not supported, and support of scsi devices is fairly limited.
    “mis support xvi (2 fast scsi), den, above mentioned comm products, as well as iop drives, ios scsi (2 scsi 1 interfaces), and itp (16 port serial boards).
    “All scsi above is differential.
    “Rm1000 are a hot swapable backplane with hot swapable drives (wide scsi). Included is additional scsi ports and ethernet. PCI nodes can be installed, with a variety of cards supported (fddi, fast ethernet, and I am sure many more).” —Mark Wedele96

File Systems Supported: rxfs (basically vxfs), ufs. Nile, rm100 also use tfs for /stand partitions.e96

Other Systems Emulated:

Graphics Engine: “No on board graphics hardware. These are servers that sit in the back room — remote display via X11 is what is used.” —Mark Wedele96

Text Command Shell: UNIX shells

User Interface (graphic):

Graphic Command Shell:

Disabled support:

Internet Services:

Application Programs:




references within this web site

further reading: web sites

Please send recommendations on additional URLs to Milo.

official web sites



(Frequently Asked Questions)

user group web sites

other related web sites

    http://www.unix-vs-nt.org/ John Kirch’s article “Microsoft Windows NT Server 4.0 versus UNIX”

further reading: books

    For more UNIX book listings, see also the general book listings on the UNIX web page.

If you want your book reviewed, please send a copy to: Milo, POB 1361, Tustin, CA 92781, USA.

Price listings are for courtesy purposes only and may be changed by the referenced businesses at any time without notice.

further reading: books: introductory/general

A Practical Guide to the Unix System; by Mark G. Sobell; Addison-Wesley Pub Co; October 1994; ISBN 0805375651; paperback; 800 pages; $37.95

further reading: books: administration

Essential System Administration: Help for Unix System Administrators (Nutshell Handbook); 2nd edition; by Aeleen Frisch; O’Reilly & Associates; December 1996; ISBN 1565921275; paperback; 788 pages; $27.96

The Complete Guide to Netware 4.11/Intranetware; 2nd edition; by James E. Gaskin; Sybex; December 1996; ISBN 078211931X; paperback; $47.99; includes information on getting NetWare working with Windows, Macintosh, UNIX, and OS/2

further reading: books: internet

Building a Unix Internet Server; by George Eckel; New Riders Publishing; June 1995; ISBN 1562054945; paperback (with CD-ROM); 325 pages; $30.40

further reading: books: enterprise/business

further reading: books: content creation

further reading: books: programming

Advanced Programming in the Unix Environment (Addison-Wesley Professional Computing Series); by W. Richard Stevens; Addison-Wesley Pub Co; June 1992; ISBN 0201563177; hardcover; 744 pages; $63.95

further reading: books: hardware

further reading: books: miscellaneous

In Association with Amazon.com

If you want your book reviewed, please send a copy to: Milo, POB 1361, Tustin, CA 92781, USA.

OSdata.com is used in more than 300 colleges and universities around the world

Read details here.

    A web site on dozens of operating systems simply can’t be maintained by one person. This is a cooperative effort. If you spot an error in fact, grammar, syntax, or spelling, or a broken link, or have additional information, commentary, or constructive criticism, please e-mail Milo. If you have any extra copies of docs, manuals, or other materials that can assist in accuracy and completeness, please send them to Milo, PO Box 1361, Tustin, CA, USA, 92781.

    If you have an extra or unwanted copy of any official manuals or documentation on this operating system, please send them to: Milo, POB 1361, Tustin, CA 92781, USA. I have the following items: NONE.

    Note: I am looking for a fan of Pyramid who has the time to check this web site for completeness and accuracy regarding Pyramid. Just check through the site about once a week or so and report back with any information (including the URL of the web page you are reporting).

    Click here for our privacy policy.

Click here to skip over the summaries of individual operating systems.

previous page next page
previous page next page

home page

peer level









Digital UNIX (or DUNIX)


GNU Hurd





Mac OS X









OpenVMS (or OVMS)


OS/2 Warp

OS/2 Warp Server










Windows 3.1

Windows 95

Windows 98

Windows NT

Windows NT Server

Windows NT Server Enterprise Edition

Made with Macintosh

    This web site handcrafted on Macintosh computers using Tom Bender’s Tex-Edit Plus and served using FreeBSD .

Viewable With Any Browser

    †UNIX used as a generic term unless specifically used as a trademark (such as in the phrase “UNIX certified”). UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company Ltd.

    Names and logos of various OSs are trademarks of their respective owners.

    Copyright © 1998, 1999, 2000 Milo

    Last Updated: July 14, 2000

    Created: June 22, 1998

Click here to skip over the summaries of individual operating systems.

previous page next page
previous page next page