A computer network allows connected devices to exchange and share data through connections. There are different types of computer networks including local area networks (LANs), metropolitan area networks (MANs), and wide area networks (WANs). A computer network requires hardware like network cards, cables, and connectivity devices to physically connect devices and allow communication using network protocols.

3. Computer Network

4. 4
What is Computer Network ???
A computer network is a
telecommunications network
that allows computers to
exchange data. In computer
networks, networked
computing devices pass data
and shire file to each other
along data connections.

5. Types of Computer Network :
Local Area Network (LAN)
Metropolitan Area Network (MAN)
Wide Area Network (WAN)

6. Types of LAN Card :
LAN Card: A LAN card is an computer circuit board
insert into a computer to connected to the network.
There are three types of LAN card.
ARC net Ethernet Token ring

7. Types of Network Cable :
Coaxial cable
Twisted pair cable
Optical fiber cable
Thik
Thim
STP
UTP
STP
UTP
10 MB Per Second
100 MB Per Second
2 GB Per Second

8. Types of Topology :
Network topology : Topology is the arranger on shapes on layout of a
computer in a computer network. There are different types of topology ,
the major three topology are Bus Topology, Star Topology & Ring Topology .

9. Types of Protocol :
Network protocol : Protocol consist of a set of rules that used
to transfer message from one computer system to another.
 There are five types of network protocol :
1. Net BEVI
2. DLC
3. Apple talk
4. IPX/SPX
5. TCP/IP

10. Connectivity Device :
Connectivity devices : Connectivity devices are devices that is
used to make physical network connection.
The connectivity devices are :
HUB
Repeater
Switch
Router
Bridge Gate way Brouter

11. Conclusion :
A computer network is a telecommunications network that
allows computers to exchange data.
Computer network is essential for our everyday life, so we
should have some knowledge about how to establish a
Computer Network for our office or personal uses .