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1.3 - Computer Networks - Coggle Diagram
1.3 - Computer Networks
Networks
Two or more computers connected for the sake of communications
A computer on its own is known as a stand-alone
connected by wired medium
Advantages and Disadvantages
Disadvantages
cost
additional equipment needed
Hubs
wires
attacks
spread of malware
can easily spread across an ill-protected network
hacking
data can be accessed without owner's permission
management
requires staff to manage the network
Advantages
file sharing
users can share files with each other
hardware sharing
users can share hardware
e.g. printer
communation
users can (obviously) communicate
via
video
chat
email
roaming access
users can sign in to any computer on the network and be able to access their files
Summary:
Networks cost more as they need more equipment and are more prone to attacks if they are not properly protected. However, they are a great way to bring users together and allow them to communicate with each other.
LANs & WANs
LANS
Geographically confined to one building/site
They are owned & maintained by the Company owner
WANs
Spread over a large Geographical area
Can cover more than one site
Spread across a country
Spread over the world
Factors affecting networks
Factors
the number of devices on the network
The internet
Web servers
Mail servers
Media servers