Introduction to Networking

Network
A Collection of devices that can communicate together.
The Fabric that ties business applications together.


Networking
Logical communication between connected device.
Net working = working together
Purpose : Sharing of Resources, Sharing of Services, Centralization

Network Structure
Data communication system is made up of a few basic components

Message
The information to be communicated
Message source
A device which sends the message
Message destination
A device which receives the message
Transmission medium
A physical path by which the message is transmitted
Protocol
A set of rules for communication.

How Network Impact our Daily Life 

communication media such as, IM, Wikis , Blogs, Podcasting, and Collaboration Tools

– Instant messaging

• Real time communication

between 2 or more

people based on typed text

– Weblogs (Blogs)

• Web pages created

by an individual

– Podcasting

• Website that contains

 audio files available

 for downloading

        - ways that using information networks to share and collaborate improves teaching and learning.

 Data Networking Role, Components, and Challenges

Basic characteristics of communication

– Rules or agreements are 1st established

– Important information may need to be repeated

– Various modes of communication may impact the effectiveness of getting the message across.

elements that make up a network

–Devices

•These are used to communicate with one another

–Medium

•This is how the devices are connected together

–Messages

•Information that travels over the medium

–Rules

              •Governs how messages flow across network    

 

What is Converged Network 

A type of network that can carry voice, video & data over the same network.

 

Network Characteristic

–Fault tolerance

–Scalability

–Quality of service

–Security