A collection of computing devices that are
connected in various ways in order to
communicate and share resources .
TYPES OF NETWORK
LAN(Local Area Network)
WAN(Wide Area Network)
MAN(Metropolitan Area Network)
A LAN is a computer network limited to a small
area such as an office building, university, or
even a residential home. Most mid to large-sized
businesses today use LANs, which makes it easy
for employees to share information.
A network that connects two or more local-area
networks over a potentially large geographic
A metropolitan area network is a network that
connects two or more local area networks or
campus area networks together but does not
extend beyond the boundaries of the immediate
A topology describes the configuration of a
A topology describes the physical and the logical
interconnection between the different nodes of a
TYPES OF NETWORK TOPOLOGIES
A configuration that connects all nodes in a closed loop on which
messages travel in one direction .
A configuration that centers around one node to which all others
are connected and through which all messages are sent .
All nodes are connected to a single communication line that carries
messages in both directions .
In Mesh Topology each node is connected to every other node.
COMPUTER NETWORKING MODEL
BENEFITS OF THE OSI MODEL
Facilitates modular engineering
Ensures interoperable technology
Simplifies teaching and learning
SCOPE OF NETWORKING
• All IT/ITES based companies require Networking
• In software Industry also there are Networking
• Not only IT companies need network all of them need
network to reduce workload