Intoduction to Digital Communication

Reciever

Reciever

r

Someone recieving data

Infomation

Infomation

r

Defined by surprise, things we didn't know and are being told for the first time

Message

Message

r

Thing we know and have already been told, used to be infomation but due to being told the infomation more than once, it is now a message because we already knew this.

Redundancy

Redundancy

r

Repetition of infomationLike insuring what you're gettingEg.'Can you repeat that?''This is the way it is, Yes.'

Pattern

Pattern

Syntagm

Syntagm

r

Different elements you can put things in with the same basic structure. - The same meaning into different elements.

Sender

Sender

r

Someone sending data

Noise (unwanted data)

Noise (unwanted data)

Visual Noise

r

Unwanted images

Audio Noise

r

Unwanted sound

Semantic Noise

r

Means something else to someone else, eg. Nodding your head in some countries means yes, others it can mean no.

Psycological Noise

r

Can be offensive to someone without meaning to be.E.g. Some people may not like the colour orange, others may do.

Data

Data

r

A difference you may notice in anything.

Signal Percieved in a medium

Percieved difference

Percieved among signals

Binary signal

r

e.g. On/OffTrue/False

Structure

Structure

r

The way you remember a certain procedure, like the way numbers are structured into certain ways, we notice that they are possibly a phone number, eg. 077..ect.

Rules

Rules

r

Constraints on a process, like control. You automatically are aware that on a traffic light red means stop and green means go, but are just being told with by a coloured light. - This creates a structure

Paradigm

Paradigm

r

A set of possible meanings for the same thing, like a nod meaning yes.