real time

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Related to Real-time computing: Real-time systems

real time

As fast as required. A real-time system must respond to a signal, event or request fast enough to satisfy some requirement. Real time often refers to process control and embedded systems. For example, space flight computers must respond to changing conditions in order to keep the rocket ship on course. Industrial robots must respond quickly in order to keep the assembly line moving at full speed. Antilock brakes and other driving assist systems must respond to changing road conditions immediately in order to benefit the driver and vehicle. See embedded system, real-time audio, real-time video and real-time search.

Real-Time Communications
Videoconferencing requires real-time systems that transmit video across the network and display it at the other end as quickly as the camera is capturing it. Gaming is another real-time application. The system must render video frames in immediate response to the user's inputs.

Business Systems - Not Really
The typical transaction processing system is not considered real time even though it often updates databases immediately. However, in the past, as business information systems became fast enough to respond to queries and updates in only a second or two, they were called real-time systems. See online.
References in periodicals archive ?
Design-time guarantee of timely service capabilities of subsystems: To meet the demands of the general public on the assured reliability of future real-time computing systems (RTCSs) in safety-critical applications, the system engineer must produce design-time guarantees for timely service capabilities of various subsystems (which will take the form of objects in object-oriented system designs) as opposed to relying on the testing only.
While all the challenges and important research areas (see Lee and Krishna [1993]; Son [1995]; Stankovic [1988]; Stankovic and Ramamritham [1988]) in real-time computing cannot be covered here, several key areas are stressed.
Int'l Conference on Embedded and Real-Time Computing (17th) and Workshop on Cyber-Physical Systems (1st: 2011: Toyama, Japan)
Papers address topics in the research, development, and design of embedded systems, including embedded systems in architecture, software, hardware, real-time computing, testing and verification, image and graphics processing, hardware/software co-design, pervasive/ubiquitous computing, wireless sensor networks, power-aware computing, security and dependability, system on chip (SoC) and multi-core based systems, and embedded multimedia systems.
Continuing its commitment to seamless innovation, SAP AG today announced that Ariba, an SAP company, is moving to SAPA HANA, the leading in-memory platform for real-time computing.
The others discuss innovation in distributed real-time computing, model-driven design and organic computing, scheduling and resource management, software architecture, emerging future services and software infrastructure in future computing environments, communication and middleware, software development support, embedded systems, and software modeling and analysis.
The need for large scale real-time computing, communication, transfer and storage of data generated by smart grid technologies is expected to be addressed by cloud computing services.
Papers from a July 2008 conference examine advances in the traditional core areas of embedded systems in architecture, software, hardware, real-time computing, and testing and verification, and in additional areas of special emphasis such as pervasive/ubiquitous computing and sensor networks, wireless communications, power-aware computing, security and dependability, and multimedia.
Led by Chief Executive Officer Damian Black, SQLstream's executive leadership team represents one of the most experienced in the successful application of real-time computing technology.

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