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Welcome to A-level ICT
DISTRIBUTING COMPUTING
Distributed Computing is where a series of computers are networked together (1) and they each work on solving the same problem (1). Each computer shares data processing, storage and bandwidth in order to solve a single problem. (1)
SETI research into radio signals
SETI research into radio signals. SETI, or the Search for Extraterrestrial Intelligence, is a scientific effort seeking to determine if there is intelligent life outside Earth. SETI, listens for artificial radio signals coming from other stars. The purpose of the SETI project is to search for intelligent life outside the Earth and to do this a radio telescope is used. At first supercomputers were used containing parallel processors to process the huge amount of data from the telescopes. Then someone came up with the idea of using a virtual supercomputer consisting of a huge number of Internet-connected home computers.
Folding@Home Project on consoles: e.g. Alzheimers’ research
'Popular Power' Project - influenza research - helping to develop flu vaccines.
Bit chain / Bit coin mining
Advantages of Distributed Computing
Advantages of Distributed Computing
Reduces cost because an expensive powerful supercomputer is not needed
Can pass work to computers anywhere in the world using the Internet
Improved performance as each computer can work on part of the data
Can improve performance by adding more computers
Disadvantages of Distributed Computing
Disadvantages of Distributed Computing
Issues with security of data spread out on so many different computers
Issues with communications breakdowns e.g. Heavy reliance on networks and communications which may not always be reliable
Increased costs owing to the use of expensive communication lines
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