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computer networks - Coggle Diagram
computer networks
advantages of network
groups of people can send data to each other and communicate
Databases can be shared with many people
security levels can be added to stop different unauthorised access
devices like printers can be used by all computers
software can downloaded on all computers at once
distributed system- Lots of computers can do one large task
disadvantages
An expert is required to keep the network working properly
Network managers (IT staff) have to protect against security threats
Reliance on networked resources
risk of viruses and hacking
fibre optic cable
light is transmitted in fibre optic cables
pro - really fast and no signal loss
con- expensive and hard to work with
copper cables
Electricity is sent through a copper cable
pro- cheap
con- signal loss
personal area network (PAN)