This document provides an overview of computer network classification. It discusses four main types of computer networks: 1) Local Area Network (LAN) which connects devices within a small physical area like a home, office, or school. 2) Metropolitan Area Network (MAN) which connects devices within a larger area like a city or campus. 3) Personal Area Network (PAN) which connects devices centered around an individual person's workspace. 4) Wide Area Network (WAN) which connects multiple LANs over a broad geographic distance using technologies like telephone lines or satellites.

1. Topic: Classification of Computer Network
CSE 317: Computer Networks
Submitted To
Pranab Bandu Nath
(Senior lecturer) CSE Department
City University, Dhaka
Submitted By
Mahadi Hasan Shihab
Id: 1834902615
Batch: 49th ,( B)

2. Classification of Computer Network
Network
“The computer network is a set of computers connected to share
resources.”An internet itself can be considered the computer network.
In computer networks, the computing devices exchange the data
with each other by using the connections between nodes. The
data links are established over cable media such as wires or optic
cables or wireless media such as Wi-Fi.
The computer network is a digital telecommunication network
which allows nodes to share the resources. It is the group of
computer systems and other computing hardware devices.
Those devices are linked together through communication channels
to facilitate communication and resource sharing among a wide range of users.
Computer Network

3. Figure: The computer network.
There is an example of the earliest computer network that was the Network
for communicating computers which are functioned as a part of the U.S.
military’s Semi-Automatic Ground Environment Radar System.
Networks are used to facilitate communication via email, video conferencing,
instant messages, etc. It enables files sharing across the Network. These
are also used to make information easier to access and maintain among the network users.
Types of Network

4. Computer Network 1
The Network is also used to enable the multiple users to share a single
hardware device like the printer or scanner. It allows for sharing of
software or operating programs on the remote system.
There are multiple devices or medium in a computer network, which helps
in the communication between two different devices that are called
as network devices.
Ex. Router, switch, bridge, hub, Gateway, Modem, Repeater.
The Network is the interconnection of multiple devices and termed
as hosts connected by using multiple paths to send and receive the
data or media. The computer network is mainly of four types, which are given below:
LAN (Local Area Network)

5. MAN (Metropolitan Area Network)
PAN (Personal Area Network)
WAN (Wide Area Network)
There are several types of protocols which are used in networking. The protocol
is a set of rules or algorithms which defines the way how two entities
can communicate across the Network, and different protocol is defined
at every layer of the OSI Model.
1. LAN (Local Area Network)
The Local Area Network is a computer network which interconnects the computer
within the limited area such as a residence, school laboratory, university campus
or office building. LAN (Local Area Network) spans a relatively small area. In
a wireless LAN, the users have unrestricted movement within the coverage area.
The wireless networks become popular in the residences and small businesses just
because of their easy installation. The network topology describes the layout of
interconnections between devices and network segments. The wide varieties of
LAN topologies are used at the data link layer and physical layer.

6. Computer Network 2
2. MAN (Metropolitan Area Network)
The Metropolitan Area Network is a computer network which is similar
to the Local Area network but spans an entire city or campus.

7. Computer Network 3
In Metropolitan Area Network, we interconnect the user with computer
resources in a whole geographic area or region. This Network is larger
or broader that the Local Area Network.
3. PAN (Personal Area Network)
The Personal Area Network is used for interconnecting the devices which
are centered on a person’s workspace. This Network provides data
transmission among devices such as computers, smartphones, tablets,
and personal digital assistants.

8. Computer Network 4
Figure: The Personal Area Network.
4. WAN (Wide Area Network)
The Wide Area Network is the telecommunication network which extends over
the large geographical area for the primary purpose of computer networking.
These networks are often established with leased telecommunication circuits.
The WAN connects different smaller networks, including the Local Area Network.

9. Computer Network 5
The computers connected to the Wide Area Network are often connected through
public networks, such as telephone systems. This Network can connect through
the leased lines or satellites.