alternate system
81Legacy system — A legacy system is an old method, technology, computer system, or application program that continues to be used, typically because it still functions for the users needs, even though newer technology or more efficient methods of performing a task …
82Host-based intrusion detection system — A host based intrusion detection system (HIDS) is an intrusion detection system that monitors and analyses the internals of a computing system rather than on its external interfaces (as a network based intrusion detection system (NIDS) would do) …
83Open Access Same-Time Information System — The Open Access Same Time Information System (OASIS), is an Internet based system for obtaining services related to electric power transmission in North America. It is the primary means by which high voltage transmission lines are reserved for… …
84Worldwide Military Command and Control System — The Worldwide Military Command and Control System (or WWMCCS) was a military command and control system implemented for the command and control of the United States military. It was created in the days following the Cuban Missile Crisis. WWMCCS… …
85Christchurch tramway system — A Christchurch Tramway tram, Worcester Street (March 2005) Operation Loca …
86Danka system — The shūmon ninbetsu aratamechō, or danka register, of a village called Kumagawa near Fussa, Tokyo (Fussa City Museum). The danka system ( …
87Optical landing system — The Fresnel Lens Optical Landing System of Charles de Gaulle An optical landing system (OLS) (nicknamed meatball or simply, Ball ) is used to give glidepath information to pilots in the terminal phase of landing on an aircraft carrier.[1] From… …
88Air Force Space Surveillance System — Part of the master transmitter antenna at Lake Kickapoo, Texas c.2001. The Air Force Space Surveillance System, colloquially known as the Space Fence, is a multistatic radar system that detects orbital objects passing over America. It is a… …
89Spherical coordinate system — In mathematics, the spherical coordinate system is a coordinate system for representing geometric figures in three dimensions using three coordinates: the radial distance of a point from a fixed origin, the zenith angle from the positive z axis… …
90Binary numeral system — Numeral systems by culture Hindu Arabic numerals Western Arabic (Hindu numerals) Eastern Arabic Indian family Tamil Burmese Khmer Lao Mongolian Thai East Asian numerals Chinese Japanese Suzhou Korean Vietnamese …
