Real-Time Systems in Information Technology - Term Paper Example

 Real Time Systems in Information Technology Operating system 4 RTOS 5 Basic designs 6 Traditional Operating Systems vs. RTOS 6 RTOS working environments 7 Mainstream OS 8 Conclusion 9 References 9 Abstract This paper presents a detailed analysis of the Real Time operating systems. This paper will mainly conduct a comprehensive analytical research for the Real Time Operating system’s functions, implementation areas and working. The RTOS is an upcoming generation of the operating system. This generation allows working, handling, managing the system, activities and operations in an effective way. To date the business of silicon (computer) devices has stayed consistent to the Moore's Law. Attribute of dimension as well as other attributes of the manufacture procedure of IC have been enhanced continuously. The holdup and dimension of the transistors have concentrated tremendously evaluated to a combination of years previously. The poignant object (however not suddenly) is that these development have not approach free. Through steady variable towards sub-micron age plenty of new troubles as well as confronts should be tackled; exclusive of that the forecast of Moore's law would be detained and termination of CMOS technology within a couple of years will be observed. These new expansions have placed the foundation of the Real Time Operating system. These systems have provided us lot advantages regarding the effective working in the industrial areas, common life and computing. A RTOS is a multitasking operating system that is planned for computer applications by means of rigid time limit. RTOS applications comprise a number of manufacturing robots, spacecraft, vehicle engine regulators, little embedded computer arrangement, engineering control as well as a number of huge level computing arrangements (Silberschatz, Galvin, & Gagine, 2002). An untimely instance of a huge level real-time OS was business dealing out capability urbanized by US Airlines as well as IBM for the Airline of Sabre that is also acknowledged as the Sabre online reservations system. Operating system In computer system the OS is the software that is in charge for the management and administration of computer hardware as well as for the essential functions. Moreover, it offers bases on which we can execute other software applications such as MS word or media player (Silberschatz, Galvin, & Gagine, 2002). As OS develops, yet additional services are estimated to be general foundation. Nowadays an operating system can be essential to offer Internet and network connectivity. They can be necessary to care for the system from damage through virus (Silberschatz, Galvin, & Gagine, 2002). RTOS There are a number of applications that have need of instantaneous processing from the computer. For instance getting a quotation from the stock market, searching the record related to a specific issue. In these cases a real time operating system is required. RTOS is a system in which a transaction accesses and updates a file rapidly sufficient to affect the original decision making (Sinha, 1999). A number of improvements have been initiated with the help of system designers to tackle through these troubles before. A RTOS is an OS that assurances a definite potential inside a particular time limitation. For instance, an OS capacity is intended to ensure that a convinced entity was reachable for an automaton on a manufacturing production line. A hard RTOS if the computation could not be carried out for manufacturing the entity obtainable at the designated instant, the OS would stop by a stoppage. The soft RTOS, the manufacturing production line would carry on to assignment however the manufacture production possibly will be lesser as items unsuccessful to come out at their chosen time, reasoning the automaton to be momentarily uncreative. A number of RTOS are shaped for a particular application on the other hand others are all-purpose principle. A number of obtainable common use OS declare to be a RTOS. To a number of degrees, approximately some common use OS like that IBM's OS/390 and MS Windows 2000 can be assessed for its RTOS qualities. That is, yet if an OS doesn't do well, it can have individuality that allows it to be measured as an explanation to an exacting real-time computer application difficulty (Kalinsky, 2003). Basic designs The real time OS offers a two type of basic working design Event Driven Time Sharing In the event-driven system we have the priority scheduling in the execution of system jobs. Here we have switching of the tasks on the basis of the elevated precedence requirements service, also acknowledged as the “pre-emptive priority” (Silberschatz, Galvin, & Gagine, 2002). In the time-sharing RTOS designs the tasks switching is developed on the basis of the system clock interrupt, plus on actions, described as round robin (Silberschatz, Galvin, & Gagine, 2002). Traditional Operating Systems vs. RTOS This section presents a detailed analysis and comparison of the Traditional Operating Systems with RTOS. In the traditional OS computer system software intended to be: common intention and operational on sole processor technology. The traditional OS operational by a fixed amount of isolated precedence stages, not the incessant assortment of precedence connected by means of LS and ED. Every precedence rank has a job line linked by it. The numeral system used to be a foundation of uncertainty: the maximum precedence tasks have the small priority rank. There is a flaw in all traditional OS that these systems are intended to work on single system as well as they carry out nothing to facilitate association on a bigger level among users on unusual systems (Kalinsky, 2003). Traditional OS offers a main capability for all-purpose functional computing, they are extremely complex, secret, as well as hard to use. For that reason, they are not able to convince the requirements of non-specialist system users. These Traditional Operating systems proffer compulsory functionalities, while they do not accomplish the speedy change among synchronized tasks. As well, the suitable evaluation and transfer of computer information data among these mutually dependent tasks are not holed up by these systems. The present RTOS are more flexible as compare to those traditional OS. Now there is multitasking among jobs. This functionality was not present in the traditional OS. Now the RTOS offers the enhanced job processing in a way that their associated job must be executed first. It means we only concentrate on the job that system needs to execute at a time. But in the traditional OS, system is able to carry out an activity that is assigned to them into queue. The jobs in the queue are retrieved in a manner and processed. The next job needs to wait until the pervious job completes. The new RTOS are based on the priority based job execution. If a job is most essential at the present moment then that job will be executed first (Silberschatz, Galvin, & Gagine, 2002). Another difference that makes these systems more effective is their easy working environment and effective user interface. RTOS working environments This sections talks about the main and wide spread working environments of the real time operating systems. I have accessed that there following given areas are better working areas of RTOS. Transaction Processing Facility Manufacturing industry Environmental observation In the transaction processing facility the RTOS system have the capability to manage and handle the online transactions in a well-organized manner. It takes action on the user requests in a better way and dedicates all essential resources to that request for the better request handling and management (Kalinsky, 2003). The second main working area is the manufacturing industry. Here the RTOS are able to handle the automatic manufacturing and handling. For instance an industrial robot that welds the cars frames. This robot is guided through a RTOS that detects the exact place of welding and carry out the welding operation in a better way (Kalinsky, 2003). The third important area is the environmental observation system that is able to gather the environmental data and processing, and broadcast it to a specified location. The example of such system can be a weather observer system that consists of the process of gathering environmental data after a specified interval of time. This data comprises temperature, humidity, pressure, air flow, etc. Such type of observations are taken after a specified amount of time and processed to access the real condition of the weather (Kalinsky, 2003). Mainstream OS Now this section will talk about the Mainstream OS for the real time working environment. It is accessed that the following given RTOS are most widely used (Kalinsky, 2003); Windows CE RTLinux VxWorks QNX In the working environment such as Transaction Processing Facility RTLinux is mostly used. This system is a type of Linux that is developed to support the functionalities of RTOS (Jeff, 2004). In the Manufacturing industry the VxWorks is an operating system that is specially developed to maintain such type of operations. In the Environmental observation the QNX will be more effective operating system (Jeff, 2004). Conclusion In this paper I have presented the analysis of real time operating system. RTOS are really essential in the present age of new technology and automation. These systems have effective capability to manage and run the automated systems by taking priority based actions for specific responses. I have presented a detailed comparison of RTOS and Traditional Operating Systems. Then the main working areas of the real time operating system are discussed. I have tried to streamline each aspect of the RTOS in an effective way to develop a compliance overview of these systems. References 1. Jeff Child. (2004). Mainstream RTOSes Are Worth a Look, Source; http://www.cotsjournalonline.com/, retrieved on 09-04-2009. 2. Kalinsky, D. (2003). Basic concepts of real-time operating systems, source; http://www.linuxdevices.com/, retrieved on 09-04-2009. 3. Loudon, k. C. (1999). Management Information System. New York: Addison Wesley Publishing Company. 4. Silberschatz, A. Galvin,P., & Gagine, G. (2002). Operating System Concepts (6th ed.). New York: John Wiley & Sons. 5. Sinha, P. K. (1999). Computer Fundamentals. New Delhi: BPB Publications. Read More