CLIENT/SERVER Presented By K V BRAHMAM. 1ST MCA Y9MC24038. RVR&JCCE CONTENTS About CLIENT About SERVER Architecture & Layers Advantages Future technologies Conclusion As a rule, the client does not perform any database functions; instead, the client sends requests for data to a server, and then formats and displays the results. A computer that accesses shared network resources provided by another computer (SERVER) A client may be located on a Microsoft Exchange Server computer or on a user’s workstation. The Microsoft Exchange Client computer contains the following components: ABOUT CLIENT Microsoft Exchange Client client extension Client application ABOUT SERVER A computer that provides shared resources to network users. Server applications can be mailbox agents, gateways or add-in applications. The following components run on the Microsoft Exchange Server computer: Directory Directory Exchange Agent (DXA) Information store Message Transfer Agent (MTA) Gateway Connector ARCHITECTURE & LAYERS Architecture defines where to place server and client, and what software and functions place at server and client. This architecture divided into four types. These are: One tire architecture ▪ In this both client and server are on same machine. Server directly communicate with client, here no network communication is needed. Two tire architecture Three tire architecture N-tire architecture Here so many layers are placed. This type architecture is used in Internet. Clients request first layer and this request is propagated upward and TWO-TIER Tier 1 Server Tier 2 Client 1 Client 2 Client 3 THREE-TIER Database Server Business Server Client 1 Client 2 …... Client n ADVANTAGES Inter operability Usability Scalability Flexibility Limitations: If organization is small establishing client/server environment is too expensive. Installation of software is difficult. Future Technologies Clients work without hard disks. Operating System for clients also resides in server and server give provision to boot OS remotely by client. Small scale organizations also use this technology. Implementation and maintenance is very cheaper. All organizations are interested to maintain network with in the organization. Conclusion Client/server environment is heart for now a days technologies. All networking computers use this technology. This technology have its own advantages and disadvantages. But advantage are more profitable for organizations and user friendly for client users. Disadvantages effect on only small size networks.
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