What does GRID stand for?

What does GRID mean?

GRID	Global Resource Information Database Academic & Science » Ocean Science
GRID	Global Rave Information Database Miscellaneous » Hobbies
GRID	Greens Republicans Independents And Democrats Governmental » Politics
GRID	General Repository For Interactions Datasets Computing » Databases
GRID	Gradual Retrograde Immune Degeneration Medical » Physiology
GRID	Graphics Retail Interior Design Business » General
GRID	Great Rewards In Devotion Community » Religion
GRID	Generic Region For Information Display Computing » General
GRID	Graphic Retrieval and Information Display Governmental » NASA