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Siemens Nixdorf Informationssysteme

German information-technology company created in 1990 through the combination of Siemens' computer activities and Nixdorf Computer.

Last updated August 24, 2026

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Overview

Siemens Nixdorf Informationssysteme AG, commonly abbreviated SNI, was a German information-technology company established in 1990 through the merger of Siemens' Data Information Services division with Nixdorf Computer. The business combined Siemens' enterprise-computing activities with Nixdorf's established expertise in commercial information systems, banking equipment, retail technology, and business computing. It operated as a separate company within the Siemens group and became one of Europe's largest information-technology suppliers during the 1990s. SNI's portfolio covered a broad range of enterprise hardware and software. Its systems included BS2000 mainframes and the BS2000 operating system, SINIX Unix-based systems, RISC-based RM-x00 servers, databases, personal computers, enterprise software, and solutions designed to work with commercial platforms such as SAP R/3. The company also developed ComfoDesk, a graphical user-interface shell aimed at enterprise users. This mix allowed SNI to serve large organizations as well as banking, retail, and other transaction-intensive environments. The company's business was shaped by the convergence of traditional mainframe computing, open systems, client-server architecture, and industry-specific automation. Nixdorf's legacy gave SNI a strong position in automated teller machines, point-of-sale systems, and branch or store infrastructure, while Siemens contributed engineering scale, corporate relationships, and established computing technologies. SNI therefore competed across several segments rather than presenting itself as a narrowly focused hardware or software brand. During the 1990s, SNI was described as the largest information-technology company in Europe. Its scale reflected the importance of European suppliers in mainframes, business computing, banking automation, and systems integration before the consolidation of the personal-computer and server industries. The company nevertheless faced a rapidly changing market in which proprietary systems were increasingly challenged by standardized hardware, Unix, Microsoft platforms, and global technology vendors. In 1999, Siemens reorganized the business into two successor operations. Fujitsu Siemens Computers assumed the personal-computer and general computer business, while Wincor Nixdorf took over the banking and retail activities associated with Nixdorf's heritage. This division ended Siemens Nixdorf as a standalone operating company and transferred its principal activities into more specialized successor businesses. The SNI name is consequently historical rather than an active independent brand.

History

Siemens Nixdorf Informationssysteme emerged from the combination of two important strands of German computing. Nixdorf Computer had developed a strong position in commercial data processing and was particularly associated with banking, retail, branch automation, and transaction-oriented systems. Siemens, meanwhile, maintained its own computer operations through the Data Information Services division. In 1990, these activities were merged to form Siemens Nixdorf Informationssysteme AG, generally known as SNI. The new company operated as a separate business within Siemens rather than simply becoming another product line of the parent group. Its creation brought together complementary capabilities. Siemens supplied the resources and customer relationships of a major industrial conglomerate, together with established mainframe and enterprise-computing technologies. Nixdorf contributed a commercial systems heritage and a substantial installed base in banks, retailers, and other organizations that relied on specialized transaction systems. SNI's product strategy reflected the technological transition taking place in the 1990s. It continued to offer mainframe computing through its BS2000 systems and associated operating environment, while also promoting Unix-based and open-systems products through SINIX. The company sold RISC-based RM-x00 servers, databases, personal computers, enterprise software, and systems intended to support applications such as SAP R/3. ComfoDesk provided a graphical shell for enterprise users. The resulting portfolio ranged from central corporate systems to distributed servers and user-facing computing equipment. Banking and retail remained especially important areas of competence. SNI supplied technology for automated and branch-based financial services, retail operations, and point-of-sale environments. These activities gave the company a differentiated position in Europe, where banks and retailers often required integrated hardware, software, maintenance, and systems expertise. At the same time, its mainframe and server products allowed it to address large corporate and public-sector computing requirements. For much of the 1990s, SNI was regarded as Europe's largest information-technology company. Its scale gave it visibility across the European enterprise market, but the industry was becoming increasingly competitive. Proprietary architectures faced pressure from standardized servers and personal computers, while Unix and Microsoft-based systems altered the economics of business computing. Customers also increasingly expected integrated services and internationally competitive platforms rather than a portfolio centered on national or legacy architectures. In 1999, Siemens divided the SNI business into two successor organizations. The personal-computer and broader computer activities were combined with Fujitsu's corresponding business to form Fujitsu Siemens Computers. The banking and retail operations were transferred to Wincor Nixdorf, a successor that preserved the Nixdorf name and focused on transaction systems, self-service equipment, and retail technology. This restructuring ended Siemens Nixdorf as an independent operating company. Its technologies, customer relationships, and employees continued in successor businesses, but the SNI brand itself became historical.

  • 1999

    Business is divided between two successor companies

    [1]

    Fujitsu Siemens Computers took over general computer activities, while Wincor Nixdorf assumed the banking and retail business.

  • 1990

    Siemens Nixdorf Informationssysteme is established

    [1]

    Siemens' Data Information Services division and Nixdorf Computer were merged to create SNI, a separate company within Siemens.

  • 1990

    Combined enterprise-computing portfolio begins operating

    [1]

    The new company brought together mainframes, operating systems, servers, databases, personal computers, enterprise software, and banking and retail technology.

Products and positioning

A broad European enterprise-technology supplier combining mainframes, open systems, servers, software, and industry-specific banking and retail infrastructure.

  • Mainframe computers and operating system

    BS2000

    BS2000 was SNI's mainframe computing platform and operating environment. It represented the company's continuation of large-scale enterprise processing for organizations that required centralized transaction handling, reliability, and long-term application support. The platform formed part of SNI's traditional enterprise-computing business alongside newer Unix and client-server offerings.

  • Unix operating system

    SINIX

    SINIX was SNI's Unix-based operating-system line. It supported the company's move beyond proprietary mainframe environments into open systems and distributed enterprise computing. SINIX was associated with SNI's Unix workstations and servers and helped the company address customers adopting more standardized application and networking architectures.

  • RISC-based servers

    RM-x00

    The RM-x00 family consisted of RISC-based servers sold for enterprise and open-systems workloads. It formed part of SNI's effort to offer scalable systems alongside its mainframe products, serving organizations moving toward distributed computing, Unix environments, and client-server architectures.

  • Enterprise graphical user interface

    ComfoDesk

    ComfoDesk was a graphical user-interface shell designed for enterprise users. It provided a more accessible desktop-style interaction layer for SNI systems and illustrated the company's attempt to make business computing more usable as organizations adopted graphical interfaces and distributed applications.

  • Industry-specific information technology

    Banking and retail systems

    SNI supplied computing and automation technology for banks and retailers, including systems associated with branch operations, self-service banking, transaction processing, and point-of-sale environments. These activities were inherited in large part from Nixdorf's commercial-systems business and later became the core of Wincor Nixdorf.

Brand decisions

  • 1999

    Separate the computer and transaction-technology businessesStrategy

    Background

    The information-technology market was shifting toward standardized personal computers, open systems, and specialized industry solutions, making a single broad SNI structure less suitable for the different businesses.

    Action taken

    Siemens split SNI's activities between Fujitsu Siemens Computers, which received the general computer business, and Wincor Nixdorf, which received the banking and retail operations.

    Aftermath

    The restructuring ended Siemens Nixdorf as a standalone company and created successor businesses with more focused market positions.

  • 1990

    Merge Siemens and Nixdorf computer activitiesM&A

    Background

    Siemens and Nixdorf each maintained substantial positions in business computing, but their activities covered complementary areas of enterprise systems, commercial computing, and transaction technology.

    Action taken

    The Siemens Data Information Services division and Nixdorf Computer were combined into Siemens Nixdorf Informationssysteme AG.

    Aftermath

    The merger created a major European information-technology supplier with a portfolio spanning mainframes, servers, software, personal computers, banking, and retail systems.

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