Real-time software may use one or more of the following: synchronous programming languages, real-time operating systems, and real-time networks, each of which provide essential frameworks on which to build a real-time software application. The term 'real-time' is also used in simulation to mean that the simulation's clock runs at the same speed as a real clock, and in process control and enterprise systems to mean 'without significant delay'. Real-time processing fails if not completed within a specified deadline relative to an event deadlines must always be met, regardless of system load.Ī real-time system has been described as one which 'controls an environment by receiving data, processing them, and returning the results sufficiently quickly to affect the environment at that time'. A system not specified as operating in real time cannot usually guarantee a response within any timeframe, although typical or expected response times may be given. Real-time responses are often understood to be in the order of milliseconds, and sometimes microseconds. Real-time programs must guarantee response within specified time constraints, often referred to as 'deadlines'. Real-time computing ( RTC) is the computer science term for hardware and software systems subject to a 'real-time constraint', for example from event to system response. ( April 2014) ( Learn how and when to remove this template message) Please help to improve this article by introducing more precise citations. This article includes a list of general references, but it remains largely unverified because it lacks sufficient corresponding inline citations.

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