Database Reference
In-Depth Information
Computers connected to a network
User requests
ile(s) from the
ile server
User B
File server
sends
requested
ile(s) to the
user
Network
286
File
server
Files on disk
FIGURE 9-4
File server architecture
An alternative architecture, which is called client/server, is illustrated in Figure 9-5. In client/server ter-
minology, the server is a computer providing data to the clients, which are the computers that are connected
to a network and that people use to access data stored on the server. A server is also called a back-end
processor or a back-end machine, and a client is also called a front-end processor or a front-end machine.
Client computers connected to a network
Client requests
data from the
database
User B
Server sends
only requested
data to the
client that
requested it
Network
Server with
a DBMS
Database
FIGURE 9-5
Two-tier client/server architecture
