Basic concepts of computer networks.

1. By:
Abdul Wahab

2. Definition Of Computer Network.
Types Of Network.
Lan.
Types of Network Topology.
Three Main Network topologies.
Presentation Contents

3. Definition Of Computer Network
 A Computer Network is any set of
computers or devices connected to each
others with the ability to exchange data.

4.  Local area network (LAN)
 Personal area network (PAN)
 Metropolitan area networks (MAN)
 Wide area networks (WANs)
Types of network

5.  A local area network (LAN) is a network
that’s connects computers and devices
in a limited geographical area such as
a home, school, offices buildings.
Local Area Network (LAN)

6.  The pattern of interconnections of
nodes in a networks is called the Topology.
Definition Of Network Topology

7.  Bus Topology
 Star Topology
 Ring Topology
 Mesh Topology
 Tree Topology
 Hybrid Topology
Types Of Network Topology

8.  Bus Topology
 Star Topology
 Ring Topology
Three Main Network Topologies

9.  All Computers and devices are connected
to central cable or bus.
 Popular in Lan because they are not
expensive and easy to install.
Bus Topology

10.  All devices connect to a central device
called hub.
 All data transferred from one computer to
another passes through hub.
Star Topology

11.  All computer and devices arranged along
ring.
 Data travels from device to device around
entire ring, in one direction.
Ring Topology

12. THE END