HP Integrity NonStop H-Series - Manual (Page 3)

New and Changed Information
098571 Tandem Computers Incorporated iii
This manual has been updated to use the D-series nomenclature.
The operating system for Tandem NonStop systems, formerly called the Guardian
operating system, is now called the Tandem NonStop Kernel. This change reflects
Tandem’s current and future operating system enhancements that further enable open
systems and application portability.