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Printable version Future directions in computing
Silicon electronics are a staple of the computing industry, but researchers are now exploring other techniques to deliver powerful computers.
Quantum computers are able to tackle complex problems
A quantum computer is a theoretical device that would make use of the properties of quantum mechanics, the realm of physics that deals with energy and matter at atomic scales.
In a quantum computer data is not processed by electrons passing through transistors, as is the case in today's computers, but by caged atoms known as quantum bits or Qubits.
"It is a new paradigm for computation," said Professor Artur Ekert of the University of Oxford. "It's doing computation differently."
A bit is a simple unit of information that is represented by a "1" or a "0" in a conventional electronic computer.
A qubit can also represent a "1" or a "0" but crucially can be both at the same time - known as a superposition.
This allows a quantum computer to work through many problems and arrive at their solutions simultaneously.
"It is like massively parallel processing but in one piece of hardware," said Professor Ekert.
'Complex systems'
This has significant advantages, particularly for solving problems with a large amount of data or variables.
"With quantum computing you are able to attack some problems on the time scales of seconds, which might take an almost infinite amount of time with classical computers," Professor David Awschalom of the University of California, Santa Barbara told the BBC News website recently.
In February 2007, the Canadian company D-Wave systems claimed to have demonstrated a working quantum computer.
At the time, Herb Martin, chief executive officer of the company said that the display represented a "substantial step forward in solving commercial and scientific problems which, until now, were considered intractable."
But many in the quantum computing world have remained sceptical, primarily because the company released very little information about the machine.
The display also failed to impress.
"It was not quite what we understand as quantum computing," said Professor Ekert. "The demonstrations they showed could have been solved by conventional computers."
However, Professor Ekert believes that quantum computing will eventually come of age.
Then, he said, they will not be used in run-of-the-mill desktop applications but specialist uses such as searching vast databases, creating uncrackable ciphers or simulating the atomic structures of substances.
"The really killer application will probably be in designing new materials or complex systems," he said.
http://news.bbc.co.uk/1/hi/technology/7085019.stmhttp://www.bbc.co.uk/technology
Must google Nanotechno & Revelation 13:15-18 - see www.BibleGateway.org
15 He was given power to give breath to the image of the first beast, so that it could speak and cause all who refused to worship the image to be killed.
16 He also forced everyone, small and great, rich and poor, free and slave, to receive a mark on his right hand or on his forehead,
17 so that no one could buy or sell unless he had the mark, which is the name of the beast or the number of his name.
18 This calls for wisdom. If anyone has insight, let him calculate the number of the beast, for it is man's number. His number is 666.
Again, details early in my blog - series @ EU as Dan 7 Revived Roman Empire
& confessionsofanuclearscientiste - veteran uni science prof, (user 'Akiko Iko'), claims to make quantum mechanics etc both understandable & enjoyable
Laugh, and the world thinks you're an idiot...
[SIZE=-1]See Confessionsofanuclearscientiste - his username is Aikiko Iko & I'm sure all readers in here will enjoy him too! & my blog - that will have many more ...
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Christianforums.com - Guestbook for h2whoa
[SIZE=-1]See Confessionsofanuclearscientiste - his username is Aikiko Iko & I'm sure all readers in here will enjoy him too! & my blog - that will have many more ...[/SIZE]
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We had a fascinating 2-hour talk, @ Nov, & he asked me much about both endtime Bible prophecy & Intelligent Design Creationism
New readers from the 3 social networking sites I've recently joined, do register @ top toolbar
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OH: I haven't checked our New Members Forum since doing blog promo at Liverpool Nativity, let alone Fri & Sat
Ian[/SIZE]
