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The key feature of client / server architecture is the division of tasks between the application server and clients. In both client and server-based software is an operating system on the hardware platform. The platforms and operating systems of client and servers may be different. There may be a number of different types of client platform and operating systems and a number of different types of server platforms and operating systems in a single environment. So long as a particular client and server, the same communication protocols and support the same applications that are irrelevant to lower-level disparities. It is the communications software that enables client and server together. TCP / IP, OSI are some examples of communication software. The point of all the support software (communication and operating systems) is to provide a basis for distributed applications. can be executed Ideally, the actual functions of the application are divided in a way, platform and network resources between the client and server optimized and optimized to the ability of users to perform various tasks and cooperate with each other with shared resources. These requirements assume that the majority of software applications running on the server, while the bulk of application logic on the client removed in other cases. A key factor for the success of a client / server environment is the way in which the user interacts with the system as a whole. Thus, the design of the user interface to critical client computers. In most client / server systems, there is strong emphasis on providing a graphical user interface (GUI) that is easy to use and learn even more powerful and flexible. So we can think of a presentation services module in the client workstation for providing a user interface for distributed applications in the environment. The interaction between client and server request in the form of transactions in which the client is a database and receives a response database. The server is responsible for maintaining the database, for which purpose a complex database management system software module is not required. A variety of different applications that make use of the database can be stored on client computers. Software allows the customer requests for access to the server’s database to make. A popular example of such logic is the Structured Query Language or SQL. Quick Note: the nonsense of the search for the right spyware remover If you really want to do the work of searching for the right Spyware Protection from a Spybot go to the internet and get a free Spybot or take a free Spybot Search and Destroy Download, In order to prevent valuable information from your computer, you tore Spybot Remover Today. Presentation Services module must not be confused with the presentation layer of the OSI model.