They are used in very expensive and complicated technology, eg. automatic pilot on a plane, missile defence systems and monitoring intensive-care patients in a hospital.
Hard real-time = Pacemakers, Airplane control systems Soft real-time = Live Video Streaming
J. E. Cooling has written: 'COOLING MODULA 2 MICROCOMPUTER SYSTEMS' 'Software engineering for real-time systems' -- subject(s): Real-time data processing, Software engineering 'Real-time embedded computer systems' 'Real-Time Software Sustems'
Real-time systems are required in situations when real-time processing is needed or intense calculations need to be done.
sales order processing and reservation systems
real-time operating systems are systems that respond to input immediately. They are used for such tasks as navigation, in which the computer must react to a steady flow of new information without interruption. Most general-purpose operating systems are not real-time because they can take a few seconds, or even minutes, to react. Real time systems are systems that respond with in time constraint.it is of two type Hard real time Soft real time Hard real time systems are those systems that respond in time and if not than it is not of any use. Soft real system are that system if time constraint is over than after it will be rescheduled
Examples of real-time systems include embedded systems in automotive applications, such as anti-lock braking systems (ABS), where timely responses are critical for safety. Other examples are medical devices like heart monitors that require immediate data processing to provide accurate health information. Industrial automation systems, such as robotic assembly lines, also exemplify real-time systems, as they must operate within strict time constraints to maintain efficiency and safety. Additionally, telecommunications systems that manage call routing in real-time are another example.
All real-time systems are online systems because they operate continuously and respond to inputs in real-time, often requiring immediate processing and feedback. However, not all online systems are real-time; some online systems may not have strict timing constraints and can tolerate delays in processing. For example, a web application that handles user requests intermittently may be online but does not require real-time processing. In contrast, a real-time system, such as an air traffic control system, must deliver timely responses to ensure safety and efficiency.
Offline Real-Time Systems: Embedded Control Systems: Used in appliances like washing machines, these systems follow a pre-programmed sequence of operations without needing real-time input. Automotive Engine Control Units (ECUs): These systems manage engine performance based on predefined parameters, making adjustments based on sensor data but operating independently of external inputs. Industrial Automation Systems: Programs in manufacturing settings control machinery based on scheduled tasks, executing operations without real-time external data. Online Real-Time Systems: Air Traffic Control Systems: These systems monitor and manage aircraft movements in real-time to ensure safe distances and efficient routing. Online Banking Systems: They provide immediate transaction processing and account updates, allowing users to conduct financial operations in real-time. Online Gaming Platforms: These systems enable multiple players to interact and compete in real time, processing actions and updates instantaneously to enhance user experience.
this answer is bs there is no answer.
scientific instuments
Real-time systems run only programs that are intended to further the application at hand.Interactive systems are general purpose and may run arbitrary programs that are not cooperative or even malicious.
Roman Gumzej has written: 'Real-time systems' quality of service' -- subject(s): Real-time data processing, Quality control, Embedded computer systems