Radon System: A ventilation system beneath the floor of a basement and/or structural wood floor and designed to fan exhaust radon gas to the outside of the home

 

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Radon System: A ventilation system beneath the floor of a basement and/or structural wood floor and designed to fan exhaust radon gas to the outside of the home

North American Industry Classification System (NAICS): Standard industrial classification codes have been replaced in the 1997 Census of Agriculture by the new North American Industry Classification System (NAICS). NAICS is a unique, all-new sys . . . View Full Definition

NT File System (NTFS): One of the file system for the Windows NT operating system (Windows NT also supports the FAT file system). NTFS has features to improve reliability, such as transaction logs to help recover . . . View Full Definition

Open Circulatory System: A system in which the circulating fluid is not enclosed in vessels at all times; found in insects, crayfish, some mollusks, and other invertebrates.

Open Systems Interconnection (OSI): A reference model developed by the International Organization of Standardization. It splits networking into seven layers which provide specific services and communications standards.

Open System: A system that can be adjusted for new functions or purposes, and hence produce new and unpredicted results. Human language is an example of an open system. To a lesser extent, so is XML code . . . View Full Definition

Nonsystematic Risk: Nonsystematic risk results from unpredictable factors, such as poor management decisions, successful competitive products, or suddenly obsolete technologies that may affect the securities is . . . View Full Definition

Network Basic Input - Output System (NetBIOS): A commonly used networking protocol originally developed for LANs. Operates on the Session and Transport layers of the OSI model, so doesn't make use of physical network characteristics.

National Television System Committee (NTSC): Refers to the standards used for video broadcast and playback signal parameters in the U.S. Japan and other countries. Alternative systems used in Europe and some Asian countries are PAL and SECAM.

National Spatial Reference System (NSRS): A consistent national coordinate system that defines latitude, longitude, height, scale, gravity, and orientation through out the nation, and how these values change with time. The NSRS is d . . . View Full Definition