What is meant by computer network?
A computer network is a group of
computer systems or set of computer systems linked or connected
through cabling, ethernet cable or wireless radio waves, satellites
etc;. Computer channels are connected to share resources like CDs
& printers, exchange information or data from one computer
system to the other. Simply the computer system is a facility to
work more from system in place.Most common connecting network is
internet. nternet is also considered as one of the network.
Describe the various types
of networks.
Computer networks are of different
types:
- LAN - LOCAL AREA NETWORK
- The network which is confined to relatively smaller
geographical area is called LAN. Example - Computer systems
connected in lab, schools, colleges, offices or in a building etc;
In LAN computers are connected through cables or wireless
system.
- WAN - WIDE AREA NETWORK
- The network which connects system in long or wide
geographical areas. Example - Computer systems connected world
wide. Satellites or transoceanic are used to connet the computer
systems. So that person from one place in one country can
communicate with the other in another country with in a fraction of
seconds.
- PAN - PERSONAL AREA NETWORK
- The network which is the interconnection of technology
within the environment of individual user mearly 10 meters. Example
- If a person is travelling means with his laptop if he commects
his mobile or any other device or gadgets to share data or
information is called PAN.
- GAN - GLOBAL AREA NETWORK
- The network which is composed of different
interconnected networks asuch as internet. There is geographical
limitations.
- HAN - HOME AREA
NETWORK - The network which is usually with in the home of
the user. The network connectivity within closed area or boundary
is called home area network.
- MAN - METROPOLITAN AREA
NETWORK - The network which connects multiple LAN. These
networks connects larger than LAN but smaller than WAN. MAN
connects the systems with in the city or town for connecting
computer systems.
- CAN - CAMPUS AREA NETWORKS
- Campus area network is also called as Corporate area
network. This is a multiple interconnected local area network.