Dec 02, 2014
NETWORKING
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)
LAN
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.
TYPES OF LAN
• RING TOPOLOGY• STAR TOPOLOGY• BUS TOPOLOGY• MESH TOPOLOGY
• Ring Topology • A configuration that connects all nodes in a closed loop
on which messages travel in one direction .• Star Topology• A configuration that centers around one node to which all
others are connected and through which all messages are sent .
• Bus Topology• All nodes are connected to a single communication line
that carries messages in both directions . • Mesh Topology• In Mesh Topology each node is connected to every other
node.
WAN
A network that connects two or more local-area networks over a potentially large geographic distance
MAN
A network spanning a physical area larger than LAN but smaller than WAN such as a city. A MAN is
typically owned and operated by a single entity such as a government body or large corporation .
COMPUTER NETWORKING MODEL
• APPLICATION
• PRESENTATION
• SESSION
• TRANSPORT
• NETWORK
• DATA
• PHYSICAL
SCOPE OF NETWORKING
• All IT/ITES based companies require Networking
• In software Industry also there are Networking Programmers
• Not only IT companies need network all of them need network to reduce workload