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Computational and Informational Technologies for Science, Engineering and Education

Ust–Kamenogorsk, Kazakhstan, September, 8–12, 2003

Abstracts


Real-time systems

Askarova Z.Y.

al-Farabi Kazakh National University (Almaty)

A real-time system is a system which has to respond to externally generated input stimuli within a finite and specified period. The correctness of a real-time system depends not only on the logical result of the computation, but also on the time at which the results are produced. Often distinguish between hard and soft real-time systems. Hard real-time systems are those where it is absolutely imperative that responses occur within the specified deadline. Soft real-time systems are those where response times are important but the system will still function correctly if deadlines are occasionally missed. In a hard or soft real-time system, the computer is usually interfaced directly to some physical equipment and is dedicated to monitoring or controlling the operation of that equipment. A key feature of all these applications is the role of the computer as an information processing component within a larger engineering system.

It is possible to identify three classes of programming languages which are, or have been, used in the development of real-time systems. These are assembly languages, sequential systems implementation languages and high-level concurrent languages. Young lists the following six (sometimes conflicting) criteria as the basis of a real-time language design: security, readability, flexibility, simplicity, portability and efficiency.

At the Department of Computing Science of al-Farabi Kazakh National University under the curriculum course Real-Time Systems will be read since September, 1, 2003 on 2-nd rate of a magistracy.

Note. Abstracts are published in author's edition



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