which explains the different types of networks with diagrams

1. Topic : Understand the Concept of Networking and LAN
Sub topic : Categorize computer networks
9606A.32 1

2. Objectives
On completion of this period, you would be able to know
about
• different categories of computer networks
9606A.32 2

3. Computer Networks- Introduction
• The system of inter-connecting a number of computer
systems with the media links is known as a computer
network
• The media links called as channels may be copper wires,
optical fibers, satellite and microwave systems, infrared
transmissions
3

4. Computer Networks- Introduction
• Two computers are said to be interconnected if they are
able to exchange information accurately and timely
• A computer network can be used for sending e-mails,
electronic data interchange, teleconference, cellular
telephony, cable television, manufacturing process using
CAD & CAM, marketing, sales, financial services etc
4

5. Computer Networks- Introduction
• Networks consist of two or more locations (nodes) that
are connected together using communication links
• A node may contain any number of computers and
communication devices
5

6. Classification of Computer Networks
The computer networks can be classified into the
following categories
• PAN (Personal Area Network)
• LAN (Local Area Network)
• MAN (Metropolitan Area Network)
• WAN (Wide Area Network)
• INTERNET (Internetworking of Networks)
6

7. Classification of Computer Networks
contd…
• The distances of coverage of various networks with
respect to the distance between the computer
processors are given in the following table
7

8. Example of PAN

9. Example of PAN

10. Example of LAN

11. Example of MAN

12. Example of MAN

13. Example of MAN

14. Example of WAN

15. Illustration of Internet

16. Illustration of Internet

17. Summary
In this class, you have learnt about
• Categories of computer networks
17

18. QUIZ
1. MAN covers_____________
a) 1 meter area
b) a room or campus
c) a city
d) Entire globe
18

19. QUIZ
2. LAN covers_____________
a) 1 meter area
b) a room or campus
c) a city
d) Entire globe
19

20. QUIZ
3. Internet covers_____________
a)
20

21. Frequently Asked Questions
1. Differentiate between PAN, LAN, MAN, WAN, Internet
21