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Archive for the ‘computing’ category: Page 127

Dec 27, 2023

A short history of the Web

Posted by in categories: computing, internet, robotics/AI

The World Wide Web was first tested on Christmas Day in 1990. Tim Berners-Lee and Robert Cailliau set up successful communication between a web browser & server via the Internet.


Tim Berners-Lee, a British scientist, invented the World Wide Web (WWW) in 1989, while working at CERN. The Web was originally conceived and developed to meet the demand for automated information-sharing between scientists in universities and institutes around the world.

CERN is not an isolated laboratory, but rather the focal point for an extensive community that includes more than 17 000 scientists from over 100 countries. Although they typically spend some time on the CERN site, the scientists usually work at universities and national laboratories in their home countries. Reliable communication tools are therefore essential.

Continue reading “A short history of the Web” »

Dec 26, 2023

Israel grants Intel $3.2 billion for new $25 billion chip plant

Posted by in categories: computing, government

JERUSALEM, Dec 26 (Reuters) — Israel’s government agreed to give Intel (INTC.O) a $3.2 billion grant for a new $25 billion chip plant it plans to build in southern Israel, both sides said on Tuesday, in what is the largest investment ever by a company in Israel.

The news comes as Israel remains locked in a war with Palestinian militant group Hamas in the wake of the Oct. 7 Hamas attack on Israel. It also is a big show of support by a major U.S. company and a generous offer by Israel’s government at a time when Washington has increased pressure on Israel to take further steps to minimise civilian harm in Gaza.

Shares of Intel, which has a bit less than 10% of its global workforce in Israel, opened up 2.73% at $49.28 on Nasdaq.

Dec 26, 2023

Massively parallel computing on an organic molecular layer

Posted by in category: computing

The processors of most computers work in series, performing one instruction at a time. This limits their ability to perform certain types of tasks in a reasonable period. An approach based on arrays of simultaneously interacting molecular switches could enable previously intractable computational problems to be solved.

Dec 26, 2023

‘Negative capacitance’ could bring more efficient transistors

Posted by in categories: computing, materials

Researchers have experimentally demonstrated how to harness a property called negative capacitance for a new type of transistor that could reduce power consumption, validating a theory proposed in 2008 by a team at Purdue University.

The researchers used an extremely thin, or 2-D, layer of the semiconductor molybdenum disulfide to make a channel adjacent to a critical part of called the gate. Then they used a “ferroelectric material” called hafnium zirconium oxide to create a key component in the newly designed gate called a negative capacitor.

Capacitance, or the storage of electrical charge, normally has a positive value. However, using the ferroelectric material in a transistor’s gate allows for negative capacitance, which could result in far to operate a transistor. Such an innovation could bring more efficient devices that run longer on a battery charge.

Dec 26, 2023

Reorganizing a computer chip: Transistors can now both process and store information

Posted by in category: computing

A computer chip processes and stores information using two different devices. If engineers could combine these devices into one or put them next to each other, then there would be more space on a chip, making it faster and more powerful.

Purdue University engineers have developed a way that the millions of tiny switches used to process information—called transistors—could also store that information as one device.

The method, detailed in a paper published in Nature Electronics, accomplishes this by solving another problem: combining a transistor with higher-performing memory technology than is used in most computers, called ferroelectric RAM.

Dec 26, 2023

Spectrotemporal shaping of itinerant photons via distributed nanomechanics

Posted by in categories: computing, materials

Optomechanical coupling enables an on-chip frequency comb and optical time-lens for 70-fold optical pulse compression.

Dec 26, 2023

2301.09575 (1).Pdf

Posted by in categories: alien life, computing, quantum physics

Alien civilizations that may use black holes as super quantum computers.


Shared with Dropbox.

Dec 26, 2023

New brain-like transistor mimics human intelligence

Posted by in categories: computing, neuroscience

Transistor performs energy-efficient associative learning at room temperature.

An artistic interpretation of brain-like computing. Image by Xiaodong Yan/Northwestern University.

Dec 25, 2023

Harvard Unveils World’s First Logical Quantum Processor

Posted by in categories: computing, information science, particle physics, quantum physics

Harvard’s breakthrough in quantum computing features a new logical quantum processor with 48 logical qubits, enabling large-scale algorithm execution on an error-corrected system. This development, led by Mikhail Lukin, represents a major advance towards practical, fault-tolerant quantum computers.

In quantum computing, a quantum bit or “qubit” is one unit of information, just like a binary bit in classical computing. For more than two decades, physicists and engineers have shown the world that quantum computing is, in principle, possible by manipulating quantum particles ­– be they atoms, ions or photons – to create physical qubits.

But successfully exploiting the weirdness of quantum mechanics for computation is more complicated than simply amassing a large-enough number of physical qubits, which are inherently unstable and prone to collapse out of their quantum states.

Dec 25, 2023

Quantum computing: A reality check from the experts

Posted by in categories: business, computing, engineering, quantum physics

Quantum computing is often hailed as the next frontier of technology, promising to solve some of the most complex and challenging problems in science, engineering, and business. But how close are we to achieving this quantum dream, and what are the limitations of this emerging field?

As IEEE Spectrum shares in its detailed report, some of the leading voices in quantum computing have recently expressed doubts and concerns about the technology’s current state and prospects. They argue that quantum computers are far from being ready for practical use and that their applications are more restricted than commonly assumed.