The International Tandem User Group (ITUG) is a non-profit association dedicated to users of the Tandem NonStop computing platform. Now part of the Connect Worldwide community, it facilitates education, networking, and technical exchange between users, vendors, and Hewlett Packard Enterprise (HPE). 

ITUG Overview

• Purpose: To provide a platform for sharing technical knowledge, advocacy, and strategic information regarding Tandem (now HPE NonStop) systems.
• Structure: ITUG operates as a global umbrella for various regional chapters, such as the British Isles Tandem User Group (BITUG) and the German Tandem User Group (GTUG).
• Key Resources: ITUGLIB, an extensive download library containing open-source software, technical white papers, and legacy Guardian tools. 

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Historical Timeline by Era

1. The Foundational Era (1974–1983)

• 1974: Tandem Computers is incorporated in California by Jimmy Treybig and a core team of former HP 3000 engineers.
• 1976: The first Tandem/16 (NonStop I) system ships to Citibank, establishing the fault-tolerant market.
• 1980: Regional groups begin forming, such as GTUG in Germany, to support the rapidly growing user base.
• 1981: Introduction of NonStop II, which adds 32-bit addressing capabilities. 

2. Growth and Expansion Era (1984–1996)

• 1984: BITUG is founded in the British Isles, eventually becoming the largest user group outside the USA.
• 1986: Tandem launches NonStop SQL, the first fault-tolerant SQL database.
• 1991: The platform migrates from proprietary stack-based processors to MIPS RISC architecture (TNS/R).
• 1993: Release of the NonStop Himalaya K-series, further expanding scalability. 

3. Acquisition and Integration Era (1997–2008)

• 1997: Compaq acquires Tandem Computers to bolster its enterprise server portfolio.
• 2002: Hewlett-Packard (HP) acquires Compaq, bringing Tandem “back home” to the company that inspired its founders.
• 2003: ITUG celebrates its 25th anniversary with participation from original Tandem executives.
• 2005: ITUG officially merges with other HP user groups (Encompass and HP-Interex) to form Connect, though it often retains the “ITUG” branding for its NonStop-focused division. 

4. Modern Era (2009–Present)

• 2014: The platform completes its transition to Intel x86 architecture, branded as Integrity NonStop X.
• 2015: Hewlett-Packard splits; Tandem/NonStop becomes a core part of Hewlett Packard Enterprise (HPE).
• Present: ITUG continues to operate under Connect Worldwide, hosting major annual events like the NonStop Technical Boot Camp (TBC). 

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HP Connect (often referred to as Connect Worldwide) is a leading global IT user community dedicated to professionals using Hewlett Packard Enterprise (HPE) and HP Inc. solutions. It serves as an independent hub for peer-to-peer networking, technical education, and advocacy, primarily supporting users of high-availability systems like NonStop, ProLiant, and HP-UX. 

Historical Timeline by Era

The community’s history is defined by the evolution and eventual merger of several legacy user groups representing the giants of the mid-20th-century computing world. 

1. The Legacy Foundations (1960s – 1990s)

Before the name “Connect” existed, three distinct user groups served the customers of the companies that would eventually form the modern HP/HPE ecosystem:

• DECUS (1961): The Digital Equipment Computer Users’ Society was one of the oldest and largest user groups, supporting DEC systems.
• Interex (1974): Founded as the HP 3000 International Users Group, it later expanded to support HP 9000 and HP-UX users.
• ITUG (1970s): The International Tandem User Group supported the high-availability Tandem NonStop server community. 

2. The Consolidation Era (2000 – 2008)

Major corporate mergers necessitated the union of these independent communities:

• 2002: HP acquired Compaq, which had already acquired DEC and Tandem.
• 2004 – 2005: The DECUS community transitioned into Encompass, serving the Enterprise users of the merged entities.
• 2008: Connect Worldwide was officially launched through the merger of Encompass and ITUG, creating a single, unified global community for HP enterprise users. 

3. The Unified “Connect” Era (2008 – 2015)

During this period, Connect Worldwide solidified its role as the primary independent voice for HP enterprise technology:

• Global Advocacy: It represented over 50,000 members across 1,000+ member companies worldwide.
• Technical Focus: The community focused heavily on HP’s “Converged Infrastructure” and mission-critical systems.
• The “Boot Camp”: The NonStop TBC (Technical Boot Camp) became its flagship global event. 

4. The Modern Era & Digital Transformation (2015 – Present)

Following the historic 2015 split of Hewlett-Packard into HP Inc. and Hewlett Packard Enterprise (HPE), the community adapted to a dual-focus landscape: 

• Specialised Sub-Communities: While “Connect” remains the umbrella for legacy enterprise users, newer platforms like the HP Support Community have risen to manage consumer and PC-specific technical needs.
• HP Connect (Cloud Service): HP introduced a modern cloud-based tool also named HP Connect, which IT admins use to manage BIOS and security settings for corporate PC fleets via Microsoft Intune.
• AI Integration: The latest era (2024+) focuses on the “HP AI Helix,” embedding AI management and security into the user experience.