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SUMMARIZATION TOPIC 1.1 AND 1.3 INTRODUCTION TO NETWORK - Coggle Diagram
SUMMARIZATION TOPIC 1.1 AND 1.3 INTRODUCTION TO NETWORK
Definition of the computer network
-Computer Network can be defined as interconnected
collection of autonomous computer
Made up of telecommunication network technologies, based
on physically wired, optical and wireless radio.
disadvantages of the Computer Network
-Hardware and software management and
administration costs
-Illegal or undesirable behaviour
Advantages of the Computer Network
Saves money
-Allow to manage multiple computers from a central location
Server: usually have more processing power,
memory and hard disk space than clients
Client: Computer network that had to be request or
services from another computer on a same network
Different between Extranet and Intranet
Extranet:Shared content accessed by groups through crossenterprise boundaries
Intranet:Shared content accessed by members within a
single organization
The internet
The Internet is connecting a computer to any other computer
anywhere in the world via dedicated routers and servers
It can send and receive all kinds of information such as text,
graphic, voice, video and computer program
NIC: the device inside a computer that connects a computer to the network media
NOS: a software that runs on a server and enables server to manage data
HOST: a computer that enables resource sharing by other computers on the same network
Topology: networks can be arranged in a ring , bus or star formation the star formation is the most common
How the TCIP/IP model and the OSI model are used to facilitate standardization in the communication process
fostering competition because products from different vendors can work together
preventing technology changes in one layer from affecting other layers
assisting in protocol design since protocols at each layer have defined functions
the TCIP/IP protocol model
created in the early 1970s for internetwork communications
open standards
type of rules that are necessary to communicate
source (sender)
destrination
channel
main elements of data communication
sender
receiver
message
transmission medium
communication fundamentals
transmission medium
message source
receiver
protocols used in a network communitcation
message incoding
message size
message timing
message delivery option