International Business Machines (IBM)

Before the smartphone, before the laptop, before the internet, there was a company already helping the world compute.

IBM's history stretches back more than a century, spanning tabulating machines, room-sized mainframes, the personal computer, and cutting-edge research. Few companies have remained relevant across so many eras of technology.

This is the story of "Big Blue" and its long journey through the computing age.

IBM's legacy is its central, century-long role in the computing age. From tabulating machines to mainframes to the personal computer and advanced research, IBM helped build the foundations of modern information technology and repeatedly reinvented itself to stay relevant.

IBM influenced the entire computing industry - from the mainframes that ran businesses and governments to the PC standard that shaped personal computing. Its research laboratories advanced science, and its reinventions became case studies in business.

Compared with newer tech companies, IBM stands out for its longevity, spanning over a century and many technological eras. Compared with hardware-focused rivals, IBM increasingly emphasized software, services, and research, repeatedly reinventing its business.

Corporate roots (1911); adopted IBM name (1924); mainframe leadership (mid-20th century); System/360 (1964); IBM PC (1981); shift to services and software (1990s-2000s); Watson AI (2011); focus on cloud, AI, and enterprise technology (2010s-2020s).

As a very long-lived global company, IBM has been the subject of historical and business debate over the decades. This article notes these areas neutrally and omits disputed or unverified specifics.

Note: To avoid citing unverified specifics, this section notes general recognition. IBM researchers have received major scientific honors, including Nobel Prizes, and the company is widely recognized in technology history.

IBM is recognized worldwide, especially in business and technology circles. Its products and research have influenced computing across the globe for over a century.

In 2026, IBM remains a major enterprise-technology company focused on cloud, AI, and research. Its long history and ongoing work keep it relevant to how large organizations use technology.

Did You Know: IBM is older than the electronic computer itself. Imagine If: A tabulating-machine company leads computing for a century - IBM did. Historic Moment: 1981, when the IBM PC launched. On This Day: 1924 - the International Business Machines name is adopted.

Short Summary: IBM, known as "Big Blue," is a century-old pioneer of mainframe and personal computing.

Medium Summary: With roots tracing to 1911 and the IBM name adopted in 1924, IBM led the mainframe era, introduced the landmark System/360 (1964) and the IBM PC (1981), then reinvented itself around software, services, and research, showcasing its Watson AI in 2011.

Long Summary: International Business Machines (IBM) traces its roots to a 1911 merger of firms making tabulating and business machines, adopting the IBM name in 1924 under leader Thomas J. Watson. Through the mid-20th century it became the leader in mainframe computing, and its 1964 System/360 family - offering compatible computers for many needs - became a landmark in computing history. In 1981 IBM introduced its personal computer, helping set a standard that shaped the entire industry. As technology changed, IBM reinvented itself around software, services, and consulting in the 1990s and 2000s, a widely studied turnaround, and in 2011 it showcased its Watson artificial-intelligence system. Today "Big Blue" focuses on cloud, AI, and enterprise technology, remaining one of the oldest and most influential companies in the history of computing.