The term "nos" can refer to different things depending on the context. Here are some possible meanings:
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Nitrous Oxide Engine/System: A Nitrous Oxide Engine or System, commonly referred to as NOS, is an internal combustion engine in which oxygen for burning the fuel comes from the decomposition of nitrous oxide, N2O, as well as air. The system increases the engines power output by allowing fuel to be burned at a higher-than-normal rate, because of the higher partial pressure of oxygen injected with the fuel mixture. Nitrous injection systems may be "dry", where the nitrous oxide is injected separately from fuel, or "wet" in which additional fuel is carried into the engine along with the nitrous. NOS may not be permitted for street or highway use, depending on local regulations.
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Nitrous Oxide: Nitrous oxide (dinitrogen oxide or dinitrogen monoxide), commonly known as laughing gas, nitrous, nitro, or nos, is a chemical compound, an oxide of nitrogen with the formula N2O. It is commonly used for sedation and pain relief, but is also used by people to feel intoxicated or high.
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Network Operating System: A Network Operating System (NOS) is a computer operating system thats designed primarily to support workstations, PCs, and, in some instances, older terminals that are connected on a local area network (LAN). The software behind a NOS enables multiple devices within a network to communicate and share resources with each other. The role of the NOS is to provide basic network services and features that support multiple input requests simultaneously in a multiuser environment. There are two basic types of network operating systems: peer-to-peer and client-server.
In summary, "nos" can refer to a Nitrous Oxide Engine/System, Nitrous Oxide, or a Network Operating System, depending on the context.
