Client server computing unit 1
Introduction to client server computing pdf
Centralized DP department was unable to keep up with the demand for new applications. The client only needs to look in to a configuration file to find its servers name. Client-server computing may benefit the bottom line of cooperations. The hardware platforms must be able to support multiple operating system, networks and protocols. The server is also known as the back-end application, reflecting the fact that the server process provides the background services for the client process. By separating the native environment, the developer doesnt face any additional constraints or software on the user. The communication middleware, also known as middleware or the communications layers, is made up of several layers of software that aid the transmission of data and control information between clients and servers. Client server management tools are just beginning to become robust enough to support large, disperse deployments.
Decision making are carried out by many lower ranked managers across the organization rather than performed by CEOs. Management interface change from system to system but the maintainability of program shouldnt place more burdens on this process.
In fact, management costs are magnified with client server because of the inherent manageability problems associated with distributed networks. How is this transparency accomplished?
Client server computing unit 1
There are many issues regarding the heterogeneous computing that face both programmers and MIS personnel. This may be prohibitive factor in the deployment of a system, especially if there are large number of nodes requiing prerequisite software. The communication middleware, also known as middleware or the communications layers, is made up of several layers of software that aid the transmission of data and control information between clients and servers. By separating the native environment, the developer doesnt face any additional constraints or software on the user. The code that processes the SQL request and the data resides on the server allowing it to use its own processing power to find the requested data rather than pass all the records back to a client and let it find own data as the case for the file server. Weighing users productivity on outdated systems against the cost of replacing those systems is a delicate balancing act. Systems not capable of running multitasking OS can be preserved. Communication middleware: : Communication middleware: It is any computer process es through which clients and servers communicate.
We are having four types of servers. Vendor independence as compared to the main frame computing. The processing node could either return results to the dispatching station or to the original client.
People may be using their server to interact in a very loosely coupled way with some enterprise server. The ongoing maintenance and support of client server networks is a major cost factor facing cooperations today.
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