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1.4 wired and wireless networks - Coggle Diagram
1.4 wired and wireless networks
LAN
small geographical area on a single site
hardware is owned by the organisation using it
either wired or wireless
often in businesses, schools and universities
advantages
sharing files is easier
share peripherals like printers
internet connection can be shared between devices
install/update software on all devises at once
communicate with other users cheaply and easily
users can log in from any device on the LAN
hardware
see slide in workbook
network performance
bandwidth is the amount of data that can be transferred in a given time
amount of users that share the bandwidth
type of connection wired is faster than wireless
WAN
connects LANs that are in different geographical locations
hire infrastructure
more expensive to set up
the internet is WAN
connected using fibre optic or twisted copper cables
client server
managed by a server
files and software stored centrally
client requests data server processes request and sends data
passwords and security clearance may be required
pros
easy to keep track of files
easier backups
easier to install and update software
easier to manage security
servers are reliable and always on
cons
expensive to set up
need IT specialists to maintain
server dependence
peer-to-peer
all devices are equal
files stored on individual devices
pros
easy to maintain
no dependence on server
cons
no centralised management
easy to lose track of files
less reliable
machines slow down when accessed