P2P vs CS.

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Presentation transcript:

P2P vs CS

Please Meet MR ALDRED

He Likes… You know Hex, you smhart!

.. And downloads MP3s from the Internet

Please Meet Mr Roberts He also likes downloading

.. From the Internet

Guess what… Mr Pierce Williams He also likes downloading

Copy of Song Some student Mr Aldred Mr Roberts

Problem is.. So is everyone else…(245,678)

What are the problems with this model? Client Server Network CS Overload the server – to many requests Central fail point – the server Server requires management and resources

Let’s consider each computer Each computer has: A CPU Bandwidth Storage Often the computer is not used

Let’s pool together all these resources

Advantages / Disadvantages All computing resources can be used If one or more computers are down others can still operate Maintenance is dealt with by each user BUT More likely to get viruses Security issues