Components of Data Com Systems

Components of Data Com Systems


A basic communication model consists of five components: the sender and receiver, the medium that carries the message, contextual factors, the message itself, and feedback. To target your messages effectively, you need to consider the variables that can affect each of the components in the model. Following are the five components of communication skills training model.

 Message
 Sender
 Receiver
 Medium
 Protocol

MESSAGE
 Information or Data to be communicated

Data Communication Messages
 Files
 Can be text, numbers, video or any combin
 In short anything that can be represented using binary bits
(meaningful collections of records)
 Data/information requests (database queries, Web page requests,
etc.) Respo to requests and commands or error messages
 Status messages (about the network’s functional status)
 Control messages transmitted between network devices to control
network traffic
Correspondenc among network users
MESSAGE TYPES

SENDER

Can be a Computer , Workstation,

Device that sends the data message

Video camera etc

RECEIVER

Can be a Computer , Workstation,

Video camera etc

MEDIUM

Physical path that a message uses to travel from the Sender to the

receiver

Can be a Copper Cable (Telephone), Coaxial Cable (Cable TV),

Fiber Optic Cable, LASERS or Radio Waves (Wireless Medium)

Transmission Media