Basically
a computer network consists of two or more than two computers and
peripherals such as printers and scanners which is directly created for
common use of such devices. All hardware and software in a network are
referred as source.
The reasons for the use of the network can be stated as follows:
Shared use of resources
Cost reduction
Reliability
Time Reduction
Extensibility
Communications
Things that should be considered before launching network:
1-Organization size
2-Security level
3-Type of activity
4-Management level
5-The traffic amount
6-the budget