[2] IBM's CEO Thomas J. Watson Jr. reportedly chose the site of Rochester in honor of his copilot during World War II, Leland Fiegel, who lived there.

After expansion, it has 3.1 million square feet (290×10^3 m2) on the main campus, more than half the size of the Pentagon in Arlington, Virginia.

[7] On April 24, 2018, in a presentation to the local community, it was announced that the site was renamed Rochester Technology Campus.

In November 2004, the facility claimed the top spot in the TOP500 list of fast supercomputers with a prototype Blue Gene/L system containing 32,768 processors.

The manufacturing output of the site is so great that if it was a separate company, it would be the world's third-largest computer producer.

Along with the Mayo Clinic, the IBM plant is one of the biggest employers in the Rochester area, reportedly numbering around 5,000 in 2002.