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DAV Class 8 Chapter 1 Let us Explore - Computer Network. Notes, Please give me notes that we have to write in notebook.
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Answer:
A computer network is a group of computers that use a set of common communication protocols over digital interconnections for the purpose of sharing resources located on or provided by the network nodes.
With respect to the Computer Knowledge section in the major Government exams conducted, the Computer Networking forms an extremely important topic and questions are frequently asked from this concept.
In this article, we bring to you the detailed information about the different types of Computer networks, their definition and functions along with the different types of node devices.Candidates can also take the reference as to what this concept is all about through the video given below. This will enable candidates to get a more interactive interface to understand the topic and get a better analysis of the concept.
What is a Computer Network?
Before moving forward with the article and learning more about the types of computer networks, it is important for candidates to understand what is a network and how it affects the functioning of one or more computers connected with each other.
Definition – A group of computers which are connected to each other and follow similar usage protocols for the purpose of sharing information and having communications provided by the networking nodes is called a Computer Network.
A network may be small where it may include just one system or maybe as large as what one may want. The nodes may further be classified into various types. These include:
Personal Computers
Servers
Networking Hardware
General Hosts
Networking can be classified into three types:
Types of Computer Networks
Topology
Interpreters
We shall discuss all three in detail further below in this article.
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Types of Computer Networks
There are five main types of Computer Networks:
LAN (Local Area Network) –
Systems connected in a small network like in a building or a small office
It is inexpensive
It uses Ethernet or Token-ring technology
Two or more personal computers can be connected through wires or cables acting as nodes
Transfer of data is fast and is highly score
PAN (Personal Area Network) –
The smallest computer network
Devices may be connected through Bluetooth or other infra-red enables devices
It has a connectivity range of upto 10 metres
It covers an area of upto 30 feet
Personal devices belonging to a single person can be connected to each other using PAN
MAN (Metropolitan Area Network) –
A network that can be connected within a city, for example, cable TV Connection
It can be in the form of Ethernet, ATM, Token-ring and FDDI
It has a higher range
This type of network can be used to connect citizens with the various Organisations
list down few activities or belonging which you share with your best friend and your family members during a day