Technical Abbreviations and Acronyms
- NUDNeighbor Unreachability Discovery
- NUTNetwork Under Test
- NVANegative Vorticity Advection
- NVCNumber of Virtual Components
- NVTNetwork Virtual Terminal
- NWSNational Weather Service (formerly U.S. Weather Bureau)
- OAOrdered Aggregate
- OA&MOperations Administration and Maintenance
- OAMOperations Administration and Maintenance
- OASISOrganization for The Advancement of Structured Information Standards
- OATCOpen Authentication Technology Committee
- OBDOn-Board Diagnostics
- OCPObjective Code Point
- OCROptical Character Recognition
- OCSPOnline Certificate Status Protocol
- ODUOptical Data Unit
- OEMOriginal Equipment Manufacturer (usually in reference to car parts)
- OEOoptical-electronic-optical
- OFOutput Feedback
- OFObjective Function
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