Client – Server Architecture. Client Server Architecture A network architecture in which each computer or process on the network is either a client or.

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Presentation transcript:

Client – Server Architecture

Client Server Architecture A network architecture in which each computer or process on the network is either a client or a server

Components Clients Servers Communication Networks

Clients Applications that run on computers Rely on servers for – Files – Devices – Processing power Example: client – An application that enables you to send and receive Clients are Applications

Servers Computers or processes that manage network resources – Disk drives (file servers) – Printers (print servers) – Network traffic (network servers) Example: Database Server – A computer system that processes database queries Servers Manage Resources

Communication Networks Networks Connect Clients and Servers

Client–Server Computing Process takes place – on the server and – on the client Servers – Store and protect data – Process requests from clients Clients – Make requests – Format data on the desktop Client-Server Computing Optimizes Computing Resources

Application Functions Software application functions are separated into three distinct parts Server: Data Management Client: Presentation & Application Logic

Application Components Database Applications: – Most common use of client-server architectures 2 Client Types Fat Client Thin Client Data Management Application Logic Presentation Logical Tiers

Middleware Software that connects two otherwise separate applications Example: Middleware product linking a database system to a Web server Middleware Links Applications Web Server: Presents Dynamic Pages Database Server: Manages Data Client: Requests Data via Web

Types of Servers Application Servers Audio/Video Servers Chat Servers Fax Servers FTP Servers Groupware Servers IRC Servers List Servers Mail Servers News Servers Proxy Servers Telnet Servers Web Servers Z39.50 Servers From A to Z