They have dominated the market and after 50 years continue to develop the mainframe, taking the virtual mainframe to the next level.

Inventors of the ENIAC but also one of the first mainframes - the UNIVAC 1

Inventor of the 701; the first in the 700 series.

The chief architect of the System/360. This is still dubbed the Godfather of the mainframe industry.

Created Hercules, an Open Source software implementation of mainframe architectures. It's the world's smallest mainframe.

Managed and oversaw the development of the 3090 system.

Executive of the 1401 system.

The chief engineer who designed the initial version of the PDP-8

Designed the CDC 6600.

Project manager for the Stretch (IBM 7030).