Video and pictures from the 40th anniversary celebrations of the IBM mainframe (System/360) on April 7, 2004, at the Computer History Museum in Silicon Valley, California.

Article by Patrick Mullenon on IBM announcing 64 bit architecture.

Guruge's views on the IBM world, XML Web services, grids and autonomic computing.

1964 article coinciding with the announcement of the System/360 (S/360), the first family of computers to have the same machine architecture as IBM mainframes of today. Written by the S/360's architects: Gene Amdahl, Gerrit Blaauw and Fred Brooks.

Free Java-based software for Linux and Windows workstations. Used to read IBM manuals in BookManager format, typically on CD-ROM. Replaces IBM Library Reader (ILR).

Manufactures and markets mainframe connectivity and data movement products, both under their own brand name and as an OEM.

Workers' Compensation Board - Alberta is the first Canadian company to install an IBM eserver zSeries 990 mainframe computer, code-named T-Rex. z/Journal article is a PDF file requiring Adobe Acrobat Reader.

A personal history of the IBM mainframe by Lars Poulsen.

CMG is a user group focused on performance and resource management, especially for IBM mainframes, with an annual conference and exhibition in North America. Groups link lists local CMG groups worldwide.

A Web-based application used to calculate the size of each IBM software product's structure within a Parallel Sysplex Coupling Facility (CF).

6000 words and phrases currently in use and from the past, technical and marketing terms, as heard in IBM mainframe computer environments.

Access to over 30 Web sites run by individuals interested in mainframes.

Although business continuity is the focus, many articles are mainframe-related. Also hosts an annual conference.

Storage platforms and software for IBM mainframes.

Industry information relevant to organizations with IBM mainframes, covering new and updated hardware and software products, vendor news and industry research. A free news service published every Wednesday, also available by e-mail subscription.

Large collection of categorized links covering IBM mainframe hardware and software topics, with special emphasis on the needs of systems programmers.

A bimonthly IBM publication with technical overview and how-to articles and tips, mostly on systems software, with some hardware coverage; plus IBM and non-IBM product news. Written by IBM and non-IBM authors.

Manufacturer of IBM mainframe-compatible servers, services, software and storage. Fujitsu acquired Amdahl, originally founded by IBM System/360 architect Gene Amdahl.

Pictures of Central Processing Unit (CPU), channel and control unit front panels from System/360 and /370 mainframes, plus a few System/3, 1401, 1800 and SAGE items from the author's collection.

Links to P/390 information and z/OS freeware, as well as Gilbert's own z/OS tools and documentation.

United Kingdom region of GUIDE SHARE Europe, a merger of SHARE and GUIDE operations in the UK.

The merger of the European portion of the IBM user groups GUIDE and SHARE.

HDS provides hardware storage systems for multiple platforms, including the IBM mainframe. Related support, software and training is also available.

Includes a Search facility. Catalog link then Products and Services includes information on and pictures of many historical pieces of mainframe hardware.

An updated on-line version of the once popular book, now officially known as the Glossary of Computing Terms.

IBM home page for current mainframe computer systems, with links to an overview, software, operating systems, networking, I/O connectivity, solutions, news, events, FAQs, support, education and a library of documents.

Free access to IBM manuals in both Web-based BookManager and Adobe Acrobat PDF format. Mostly IBM mainframe hardware and the software that supports it.

IBM TotalStorage Enterprise Tape Drive 3592 replaces 3590 MagStar with a non-compatible tape cartridge format, just as MagStar replaced 3480 a decade earlier. Originally code-named Jaguar.

Access to all IBM announcement letters, sales manual, press releases, red books, white papers and catalogs, with comprehensive search for most.

Special type of less formal IBM manuals. Useful for users seeking more real-world examples than given in standard manuals. Usually details implementation and experiences of a project to implement IBM software and hardware, but some are conference presentation material. More often now, a few are introductory textbooks on a specific technology: IBM hardware or software product.

Convenient access to mainframe hardware and systems software planning and maintenance information. Registration is free, but is restricted to IBM customers, business partners and employees; confirmation takes about two business hours.

IBM programs and information for anyone developing a commercial software product for IBM's mainframe operating systems. Including free software and low cost hardware through PartnerWorld for Developers, developerWorks and other programs.

Organized by product/version, the Sales Manual lists announcement, marketing withdrawal and end of support dates for all releases of software, and relevant parts of the original announcement letter(s). Also lists hardware.

IBM TotalStorage Enterprise Storage Server (ESS) can be used for both mainframe DASD and as a Storage Area Network (SAN) for a broad range of platforms. Originally code-named SHARK.

Search by name for telephone numbers and e-mail addresses of IBM employees, limited to six results to prevent abuse.

Worldwide menu-based access to country-specific IBM information: product descriptions and announcements, and ordering and partner information.

News analysis, technology, editorial, product reviews and pictorial sections covering mainframe, Unix/Linux, software and services.

A directory of technical white papers, Webcasts, and case studies from IBM and other companies.

Getting an old System/360 Model 30 running DOS/360 in 1982 in New Zealand.

Channel extension products extend a multiplexer channel to anywhere in the world. MGT also provides networking/communications consulting.

Historical mainframe information plus tips and techniques for Assembler and C/C++. From a Systems Programmer specializing in mainframe telecommunications networks.

On-line presentations on various mainframe systems programming topics: hardware, operating system, Assembler and networking.

Covers mainframe hardware and z/OS-related systems software topics. Including a collection of IBM Green Cards.

IBM mainframe-specific portal, with search engine and browsable categories: hardware, software and education directories; career center, Web links, published articles (some by site staff).

Independent, volunteer run association providing IBM customers with user focused education, professional networking, and a forum to influence the Information Technology industry.

Storage (tape and disk) for the mainframe and other platforms. Including Storage Area Networks (SAN), WORM (Write Once, Read Many) tape and supporting software and consulting.

A student's 1/48 scale model of an IBM System/370 Model 138 computer system, complete with 3800-1 laser printer. Pictures and the story behind it.

IBM laid claim to the T-Rex containing the densest electronics in the world: 3.2 billion transistors in 16 chips on 101 layers of ceramic glass connected to 5000 pins by 500 meters of wire, all in a 3.7" x 3.7" x 0.75" module.

NaSPA's mainframe systems programming-oriented technical journal.

IBM's 40th anniversary book, by Chuck Boyer, detailing the history of the System/360; IBM mainframes today are still software-compatible with the System/360.

Subtitle: Why the mainframe is the cheapest solution for most organizations. Updated version of the classic Xephon report.

Tom Van Vleck's history of the IBM System/360 Model 67 computer and the CP/CMS operating system, which later became z/VM.

An informal association of mainframers run by Arcati Research, with monthly newsletter and breakfast sessions in London or Oxford, England. Membership is free.

First announced in mid-2003, IBM initiative to make the mainframe more competitive, most notably in hardware and software pricing. But also by increasing the number of young people with mainframe skills.

Isham Research's look at a software-based mainframe emulation on Intel-based platforms that recently went into bankruptcy.

Provides SNA, 3270, 5250 and LAN/WAN integration products: displays, printers and controllers, including communication servers and console concentrators.

A tribute to the late Chris Bunyan, Xephon co-founder and champion of the IBM mainframe.

An independently-published mainframe-only magazine covering IBM zSeries hardware and the software that runs on it, including the VSE/ESA, z/VM, z/OS and Linux operating systems. Subscriptions are free in the U.S. and Canada.

IBM home page for interfacing the mainframe to the Internet. Includes links to news, technical information, products, services, performance, security and support.

An IBM site providing mainframe hardware and systems software planning and maintenance information for Technical Support staff.