Servers & Database

File Server
Each PC runs a simple database program. Data from A is brought to the individual PC that needs it. If a certain record is needed, all the records come from A. Thus all the computers go to A to get information. There has to be a file locking so if two people get information at the same time, it won't be affected.
Print Server
The print server The communication server provides communication links to other networks.
Communication Server
The client server is where the client (PC) requests processing from the server. The server computer, which can be a PC as well, performs the processing requested by the client. Both however do processing. The client performs processing associated with the user interface and application processing that can be done locally (e.g. wordprocessing, spreadsheets). The server performs processing tasks in support of its clients. in which processing capabilities are distributed throughout a network such that a client computer requests processing or some other type of service from a server computer. In the client server environment, users at client PCs usually request that data to be downloaded (server to client) from the server to their PCs for processing.

The Client Server Mechanism

The client is the browser and the server is the httpd. They communicate through the http protocol. Through a client pull, text file is sent back written in html. In a server push the server sends you things on its own. When you have a server push file, the server sends things on its own without the client asking for them. Channels are pure push technology. handles user print jobs and controls at least one printer.
Database Server
There are several parts to the system - the backend program and various frontends on individual machines. Frontends are programs you have on your computer, like Word, etc. A request is made to the network and then the file that satisfies it is brought over. The user interacts with their program and requests are sent to the server and back.
Distributed Database
There is not one machine designated as the server for all the machines. Each machine can look for something in a different machine. Each person can keep their information independent. The World Wide Web is true distributed database because you can access information without knowing from where it's coming.
Knowbot
Knowledge Robot is the future toward which we are headed. When a request is made, the knowbot will automatically know where to find the information and how to go about finding it.