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Slide 1

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AS ICT OCR chapter 7…read more

Slide 2

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Types of networks
Allow 2 or more computers to communicate with each other.
Peer to peer:
· Computers on this network have equal status
· Cost is cheap in comparison to setting up a client to server
network but the management is down to the individual
Client to server
· Based around one computer known as the server which
tends to be very powerful
· Client connects to server which controls files, access
rights and printers.
· More of a managed system but more expensive to set up…read more

Slide 3

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Advantages and disadvantages or peer to
peer networks
Advantages Disadvantages
No need for a network operating system Because each computer can be accessed
by other users, it can slow the
performance of each computer
Doesn't need an expensive server as Files and folders can't be centrally
individual stations are used to access backed up
No need to specialist staff as each user Files and folders aren't centrally
sets up their own permissions for which organised into a shared area. They are
files they will share stored on individuals computer systems
and might be hard to locate if the owner
doesn't use a logical filing system
Easier to set up than a client to server Ensuring viruses aren't introduced into
network as there is no specialist the system is the responsibility of the
knowledge needed individual user
If one computer fails it won't disrupt the Little security apart from permissions as
rest of the network users don't need to log in to their own
workstations…read more

Slide 4

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Advantages and disadvantages of client
to server networks
Advantages Disadvantages
All files stored in a central location Specialist network operating system is
Network peripherals are controlled Server is expensive to buy
Backup and network security is Specialist staff needed
controlled centrally
Users can access shared data that is If any part of the network fails, a lot of
centrally controlled disruption will occur…read more

Slide 5

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Advantages and disadvantages or
networks as a whole
Advantages Disadvantages
Shared hardware- if a computer wasn't If a virus gets into a network, it will damage
connected to a network then each one would everything on that network
need its own printer which is costly
Files can be placed in a shared area, allowing If a network fails on one can access any files or
users access to lots of different files folders on that network
Can log on to any workstation and be able to Slow service when lots of users are on the
access work you have done on any other station network at once there isn't enough bandwidth, so
in that network the computers performance slows down
All work can be centrally backed up reducing risk Cost- building a network is expensive. Every
of data being lost machine needs to be connected, so new cables
need to be purchased. People need to be
employed to network the computers
Software can be installed on lots of computers Extra support required- networks need constant
all at once which saves time maintenance so specialist staff like network
managers need to be employed, adding to the
Antivirus software can be run on all computers
at the same time and to the same level of
Users have to log in whilst using a network so no
one else can access your data…read more


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