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COMPUTER NETWORKS - Coggle Diagram
COMPUTER NETWORKS
Main Components
Switches/Hubs
Routers
NIC(network interface card)
Modem
Clients
Firewall
Server
Advantages of computer network
The common use of document,images,photoes,songs,videos,etc
Sharing software such as computer games
Ability to communicate with network users,using e-mail,short messaging services,etc
Facility to save important information in a network storage device
Ability to share software and hardware
Ease of taking backups since the data files are saved in a server computer in the network
Ability to access the internet
Uses
Sharing a printer
Lan messanger
Sharing the folder/file
Sharing software
A computer network is a set of connected computer
Wired
Twisted pair cable (rj45)(we can see that on the telephone)
Coaxial cable(transmit signals from our antenna to the TV)
Fiber optic cables (most expensive wired medium)
wireless
Bluetooth(this is a short range wireless communicationa technology "10 meters")
WIFI waves(this network that uses radio waves.high range than blutooth "50-100" waves)
Infrared waves(this is a common,inexpensive,easy to use wireless communication technology)
Radio waves(radio waves used in TV,mobile phones,radios)
Connecting devices to a computer network
Server,Clients are connected through the switch.The wireless router allows connecting to the internet