Clients are PCs or workstations that rely on servers for resources like files, devices and processing power. Servers are powerful computers dedicated to managing disk drives, printers or network traffic. In a client-server architecture, server software accepts requests from client software and returns the results, with a two-tier architecture having a single server supporting an unlimited number of thin or fat clients, while a three-tier architecture separates processes across three logical layers executed on different processors.

2. WHAT IS CLIENT ?
Clients are pcs or workstations on which users
run applications. Clients rely on servers for
resources, such as files, devices, and even
processing power.

3. WHAT IS SERVER ?
Servers are powerful computers or processes
dedicated to managing disk drives (fileservers),
printers (print servers), or network traffic
(network servers ).

4. DEFINITION OF CLIENT-SERVER
Server software accepts requests for data from
client software and returns the results to the
client

5. CLIENT-SERVER ARCHITECTURE

6. TYPES OF CLIENT SERVER ARCHITECTURE

7. TWO-TIER
In two-tier client server architecture, the system is
implemented as a single logical plus an indefinite number of
clients that use that server.
Client can be:
Thin client or
Fat client

9. THREE-TIER
The three application layers are mapped onto
three logically separate processes that executes
on different processors

11. DATA FLOW DIAGRAM