What technology company created the Group Control System operating system and is located in Armonk, New York?
Group Control System Group Control System (GCS) is an operating system made by IBM, meant to run as a guest of VM. GCS is an integral component of the discontinued VM/SP (since VM/SP 4), VM/XA SP, VM/ESA and current z/VM IBM System product offerings.
Tridium Tridium Inc. is an American engineering hardware and software company based in Richmond, Virginia, whose products facilitate and integrate the automation of building and other engineering control systems.