By:
Date Added.: Aug 7, 2010;
Category: The five main components of data communication system are:
- Transmitter
- Receiver
- Medium
- Message
- Protocol
The transmitter sends the message and the receiver receives the message. The medium is the channel over which the message is sent and the protocol is the set of rules that guides how the data is transmitted from encoding to decoding. The message of course is central to all the other components. The message is the data that is being communicated.
|
System |
Roles of the Components |
Example |
|
Transmitter |
The device that sends the Message |
Computer, Radio Station |
|
Receiver |
The device that receives the message |
Telephone handset, Workstation |
|
Medium |
The channel over which the message is sent |
Radio waves, coaxial cable |
|
Message |
The information or data being communicated |
Video, Text |
|
Protocol |
The set of rules that guides how data is transmitted and encoded and decoded. |
TCP/IP, AppleTalk |
