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OS/2 client is a high performance desktop operating system made by IBM that runs on Intel/Cyrix/AMD Pentium and Intel 80x86. OS/2 Warp Server is a more advanced version of OS/2 designed for use as a network server.
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“Whether you run a large enterprise or a small business, OS/2 Warp Server offers you a strategic network platform, for today and the future. With OS/2 Warp Server, you gain a complete, fully-functional application server, a highly reliable network operating system, a systems management server, backup and recovery services, and more…all in a single, cost-effective solution that’s easy to install and manage. The bottom line? OS/2 Warp Server is an extraordinary feature-rich network operating system.”w35
Click here for sources to purchase a copy of OS/2 Warp.
Intended purpose
server/mainframe: OS/2 Warp intended for small and medium scale servers
desktop/workstation: OS/2 client intended for desktops and workstations
handheld: not appropriate
real time: not appropriate
Kind of OS: proprietary
Release Date: April 2, 1987
Current Version: 4.51e122
Cost: $250
Hardware Supported: Pentium, 80486w23
Maximum Number of Processors: 64e122
“This is normally a single processor OS, but you can get the pro version that contains the SMP kernel from warp server. The client does not come with SMP, only the server, and only if you request it. The maximum number of processors is 64 but not considered practical for more than 16 because you have reached the point of diminishing returns. Four processors runs 300% faster than one (for NT, it is more like 250%).” —David Eckarde123
“OS/2 Warp Server can use at least 4 clusters of 64 CPUs for a total of 256 CPUs.” —Robert Damian Mauroe122
“On an RS/6000 implementation based off the the AS/400 ‘Phoenix’ technology, they’ve done 256 clusters at max CPUs per node.” —Robert Damian Mauroe122
Kernel: proprietary
Peripherals: “some but not all PC hardware” —Kristian Elof Sørensenw36
“Both OS/2 and eCS can now use the JFS from AIX. You use it for the data partitions as you can’t boot from it. You still do that from HPFS. JFS will also span partitions and drives. Four drives, two of them scsi and two IDE, you can make drive
q:be on all four, without any drive letters before it.” —David Eckarde123
Other Systems Emulated: Windows 3.1 (built-in emulation)e89, PC-DOS (built-in emulation, same as MS-DOS)
Graphics Engine: GRADDe99
“IBM developed a 32-bit GRE (GRaphics Engine) for it’s OS/2 2.1. Then sometime when they released OS/2 Warp 4 they released a new “object oriented device driver” called GRADD, which is also 32-bits.” —Pat Jaworskie99
Text Command Shell: UNIX† shellse122
User Interface (graphic): Presentation Manager, X Windowe122
Graphic Command Shell: WorkPlacee99, X Windowe122
click on the preview image for a larger version
screen shot courtesy of Pat Gunn’s Operating Systemsw59
“It [OS/2] does have available 2 complete GUI X implementations (including support to run whatever X GUI you wish such as KDE, etc) and full text based *nix support as well.” —Robert Damian Mauroe122
Other:
(for your convenience, look for this symbol 
marking passages about OS/2, OS/2 Warp, and OS/2 Warp Server)
Please send recommendations on additional URLs to Milo.
(Frequently Asked Questions)
http://www.os2ss.com (“The OS/2 Supersite”—Dirk Terrell)e13
http://www.os2ezine.com/ “OS/2 eZine”
http://www.linuxrx.com/WS_Linux/OS_comparison.html “The Linux resource exchange — Operating systems comparison” LINUX, HPUX, Windows NT, BSDi, FreeBSD, IRIX, Digital UNIX, Solaris, Macintosh, OS/2, UnixWare, OpenServere83
http://www.ecomstation.com (“eComStation”e123
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.
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
Software Implementation Techniques: Writing Software in OpenVMS, OS/2, Unix, and Windows NT; 2nd edition; by Donald E. Merusi; Digital Press; November 1995; ISBN 155558134X; paperback; 567 pages; $52.95
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.
We are working on providing a second source.
OS/2 Warp 4.0; $249.95
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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.
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This web site handcrafted on Macintosh 
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and served using FreeBSD 
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†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, 2001, 2004 Milo
Last Updated: April 2, 2004
Created: June 22, 1998
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