1. Introduction to computer networks
Term1
Introduction to computer networks

2. Class Activity: Collect your candy..

3. Define the term network media Describe different types of medium
Lesson2 Objectives:
Define the term network media
Describe different types of medium
Describe how data is transmitted over the network
Explain the bandwidth
Explain duplex

4. The material used to connect data is called medium
Network Media
Fiber-optic
Copper wires
Wireless
The material used to connect data is called medium

5. A pair of copper cables twisted to protect the signal
A type of network media that transfers electrical signals via copper medium
Twisted Pair cable
Coaxial cable
A pair of copper cables twisted to protect the signal
A copper or aluminum cable coved with a jacket that carries electrical signals.

6. Fiber Optic Cables
A type of network media (cables) uses glass to carry the light signal. that transfers electrical signals via copper medium
The fiber optic cable can carry the most data because it is not affected by outside signal or electromagnetic fields

7. Wireless Medium
A type of network media uses radio signals to connect devices. Wifi and 4G networks uses the wireless network medium

8. Activity 7 & 8– Pages
Work in pairs

9. Bandwidth
Data transfers as small units through network medium as Packets. Each packet contains data in the image of 0s and 1s
Number of bits that can go through the network medium is called bandwidth.

10. Bandwidth
is measured in:

11. Checking Bandwidth
Visit website and record the bandwidth

12. Transmitter & Receiver at the same time (duplex)
Transmitting and Receiving Data
Transmitter
Receivers
Transmitter & Receiver at the same time (duplex)

13. Duplex Half Duplex Full Duplex
Receiving and transmitting signals by both ends at the same time
Half Duplex
Full Duplex
One computer transmits data at any time
Both computers sends and transmits data at the same time

14. Book Activity – P52-59

15. Cisco Packet Tracer
Check the bandwidth of your network Cisco Packet Tracer.
Book Activities P46-49

16. Cisco Packet Tracer
Check the bandwidth and duplex of your network Cisco Packet Tracer.
Book Activities p-54