Definition
Real-time systems play a considerable role in our society, and they cover a spectrum from the very simple to the very complex. Examples of current real-time systems include the control of domestic appliances like washing machines and televisions, the control of automobile engines, telecommunication switching systems, military command and control systems, industrial process control, flight control systems, and space shuttle and aircraft avionics.

All of these involve gathering data from the environment, processing of gathered data..............etc

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533NPS01611 ki august month ki pay slip show kare..............etc

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For ten years researchers have been attempting to construct programming language systems that support orthogonal persistence above conventional operating systems. This approach has proven to be poor; researchers invariably construct a complete abstract machine above the operating system with resulting loss of efficiency. This paper describes a new approach, the construction of an operating system designed to support orthogonal persistence.

The operating system, Grasshopper, relies upon three powerful and orthogonal abstractions: containers,..............etc

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Railway staff information system (REIS) is a railway employee information needs to cover all aspects of is being planned. The Internet, through the Railnet, dedicated kiosks etc demand through all delivery modes like 24 X 7 on the railway all current, past and future offer employees information also proposes to use biometrics and other technologies to ensure that an employee is meant for information and a personal password and in addition to its other security features currently available see Is.
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PF No. AE020006

Please sand employee salary slip for previous three months for above PF No.
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By the mid 1980 s, the trend in computing was away from large centralized time-shared computers towards networks of smaller, personal machines, typically UNIX workstations . People had grown weary of overloaded, bureaucratic timesharing machines and were eager to move to small, self-maintained systems, even if that meant a net loss in computing power. As microcomputers became faster, even that loss was recovered, and this style of computing remains popular today.
Plan 9 began in the late 1980 s as an attempt to have it both ways: to build a s..............etc

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Inferno is answering the current and growing need in the marketplace for distributed computing solutions. Based on more than 20 years of Bell Labs research into operating systems and programming languages, Inferno is poised to propel network computing into the 21st century. Bell Labs will continue to support the evolution of Inferno under a joint development agreement with Vita Nuova. Inferno is an operating system for creating and supporting distributed services. It was originally developed by the Computing Science Research Center of Bell Labs..............etc

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PF No. AE020006
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A real time system is defined as follows - A real-time system is one in which the correctness of the computations not only depends upon the logical correctness of the computation but also upon the time at which the result is produced. If the timing constraints of the system are not met, system failure is said to be occurred.


Two types Hard real time operating system Strict time constraints Secondary storage limited or absent Conflicts with the time sharing systems Not supported by general purpose OS Soft real time operating system Reduc..............etc

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