The purpose of this website is to educate people about NETWORK. After you visit this website you will be able to :

- Define Network

-  Define Communuication Device

- Define Transmission Media

-  Pros&Cons of Network

Relationship between communication device and transmission media

COMMUNICATION DEVICE
 TRANSMISSION MEDIA    
Dial-Up Modem
 Telephone Line
Digital Modem :
         + DSL (Digital Subscriber Line)
         + Cable Modem
 Digital Line
Wireless Modems
 Cellular Network
Wireless Access Points
 Wired Network

HOW DATA IS TRANSMIT IN A NETWORK ?

    

1. Sending and removing devices

-Sending devices – A device that initiates an data, instructions and information. These are often a computer

-Receiving devices –A device that accepts data , instructions and information . These are often a computer.

2. Transmission media :

  Medium that carries the message (data , instructions and informations).

3.Communication devices.

This devices act as an interface between the sending and receiving devices and the communication channel . They convert outgoing message into packets that can travel across the communication channel. Each packet contains the data , as well as the recipient, the sender, and the sequence information used to reassemble the data at the destination.

 4. Protocol is a set of rules that govern data communication

 Example: TCP/IP