Picture 1 Picture 2 Picture 3

Picture 3 Picture 1 Picture 2

No 14 Sammy House

Felix House Farah House

No 10

No 11

No 15

No 13

No 12

Najib House

Jalan Cantik

No 16 Ah Toi House

Taman Muhibah

Jalan Hebat

Ariel House

Mawi House

COMPUTER NETWORKS AND COMMUNICATIONS

Computer Networks

Apply the concept of network into Computer, we will get…

And each computer has its own address, just like our house. PC_5 PC_1 10.0.0.1

PC_2

10.0.0.5

10.0.0.2

PC_6 10.0.0.6

Printer PC_4

10.0.0.3

10.0.0.4

UTP Cable Media

PC_3

PC_7 10.0.0.7

Collection of computer and devices connected together

Exchange information

Computer Networks

Share resources

Sharing of peripheral devices

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DEFINITION OF COMPUTER NETWORKS

A network is a collection of computers and other hardware devices that are connected together to share hardware, software and data as well as to facilitate electronic communications. Allow user to share resource to other.

What is resources?

RESOURCES

DATA

INFORMATION

HARDWARE

SOFTWARE

Communications

Email

Chatting

Internet

Paging

Video conferencing Fax machine

Satellite



DEFINITION OF COMMUNICATIONS

A process in which two or more computers or devices transfer data, instructions and information. Even the smallest computers and devices communicate directly with one another or with hundred of computers on a network.

 WHAT WE NEEND FOR COMMUNICATIONS? 

Four basic elements  Sending

and receiving devices  Communication channel  Connection devices  Data transmission specifications



Sending devices  Initiates instruction to transmit data



Communication devices  Convert data instruction so it can be carry



Communication Channel  Path for signal to travel



Communication device  Convert data instruction so can be read



Receiving device  Accept transmission instruction or information.

GROUP TASK Cite example in immediate environment to show the importance of network and communication. 

FINISH