A computer network allow computers to exchange data.

1. Computer Network
Presented By :
Aileen Ailden

2. WHAT IS COMPUTER NETWORK
• A network is a group
of two or
more computer
system linked
together.

3. NETWORK TYPES
• LAN
• WAN
• MAN

4. LAN
• The computers are geographically
close together (that is, in the
same building).

5. WAN
The computers are farther
apart and are connected by
telephone lines or radio waves.

6. MAN
A data network designed for a
town or city

7. NETWORK TOPOLOGY
• The geometric arrangement of a
computer system.

8. TYPES
• Star
• Bus
• Ring
• Mesh

9. BUS TOPOLOGY
In networking a bus is the central
cable -- the main wire -- that connects
all devices on a local-area network
(LAN).
Advantage
It's easy to connect a computer or
device and typically it requires less
cable than a star topology.

10. STAR TOPOLOGY
In a star network devices are connected
to a central computer, called a hub.
Nodes communicate across the network
by passing data through the hub.
Advantage
In a star network, one malfunctioning
node doesn't affect the rest of the
network.

11. RING TOPOLOGY
That is, all of the nodes are
connected in a closed loop.
Messages travel around the ring,
with each node reading those
messages addressed to it.
Advantage
One main advantage to a ring network is
that it can span larger distances than other
types of networks, such as bus networks,
because each node regenerates messages as
they pass through it.

12. MESH TOPOLOGY
• .
In a mesh network, devices are
connected with many redundant
interconnections between network
nodes
Advantage
Data can be transmitted from different
devices simultaneously. This topology
can withstand high traffic.