Computers & the Internet News and Discussions

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High-speed laser writing method could pack 500 terabytes of data into CD-sized glass disc

by The Optical Society
https://phys.org/news/2021-10-high-spee ... sized.html
Researchers have developed a fast and energy-efficient laser-writing method for producing high-density nanostructures in silica glass. These tiny structures can be used for long-term five-dimensional (5D) optical data storage that is more than 10,000 times denser than Blue-Ray optical disc storage technology.

"Individuals and organizations are generating ever-larger datasets, creating the desperate need for more efficient forms of data storage with a high capacity, low energy consumption and long lifetime," said doctoral researcher Yuhao Lei from the University of Southampton in the UK. "While cloud-based systems are designed more for temporary data, we believe that 5D data storage in glass could be useful for longer-term data storage for national archives, museums, libraries or private organizations."

In Optica, Optica Publishing Group's journal, Lei and colleagues describe their new method for writing data that encompasses two optical dimensions plus three spatial dimensions. The new approach can write at speeds of 1,000,000 voxels per second, which is equivalent to recording about 230 kilobytes of data (more than 100 pages of text) per second.

"The physical mechanism we use is generic," said Lei. "Thus, we anticipate that this energy-efficient writing method could also be used for fast nanostructuring in transparent materials for applications in 3D integrated optics and microfluidics."
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Seoul will be the first city government to join the metaverse

https://qz.com/2086353/seoul-is-develop ... -platform/

Seoul says it will be the first major city government to enter the metaverse. On Nov. 3, the South Korean capital announced a plan to make a variety of public services and cultural events available in the metaverse, an immersive internet that relies on virtual reality. If the plan is successful, Seoul residents can visit a virtual city hall to do everything from touring a historic site to filing a civil complaint by donning virtual reality goggles.

The 3.9 billion won ($3.3 million) investment is part of mayor Oh Se-hoon’s 10-year plan for the city, which aims to improve social mobility among citizens and raising the city’s global competitiveness. It also taps into South Korea’s Digital New Deal, a nationwide plan to embrace digital and AI tools to improve healthcare, central infrastructure, and the economy in its recovery from the economic crisis caused by covid-19.
To know is essentially the same as not knowing. The only thing that occurs is the rearrangement of atoms in your brain.
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Samsung announces its next-gen RAM for phones and ‘the metaverse’
Samsung has announced its next-generation RAM tech made for mobile devices, which it says can be used in future smartphones but also in servers, cars, and “the metaverse.” While Samsung’s press release doesn’t mention how its new LPDDR5X RAM chips could help people enter the “digital reality,” the tech should help make devices run faster and last longer.

Putting the buzzwords like metaverse, AI, and 5G aside, Samsung is promising some real improvements to speed and power usage: it says its next-gen RAM will have 1.3-times faster processing speeds versus the previous-gen LPDDR5, will be capable of higher densities (up to 64GB per chip), and will use 20 percent less power than the last generation. Some of these improvements, according to Samsung, can be chalked up to the new 14nm process it’s using to create the chips. Also, for all the ribbing about the metaverse, lower-power draw and better performance could actually help with AR and VR headsets with onboard processors or phones that are driving those devices.
And remember my friend, future events such as these will affect you in the future
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Qualcomm’s next-gen CPU for PCs will take on Apple’s M-series chips in 2023

Nov 16, 2021

Qualcomm is looking to seriously beef up its PC processors, with the company announcing plans for a next-generation Arm-based SoC “designed to set the performance benchmark for Windows PCs” that would be able to go head to head with Apple’s M-series processors.

Dr. James Thompson, Qualcomm’s chief technology officer, announced the plans for the new chips at the company’s 2021 investor day event, with the goal of getting samples to hardware customers in about nine months ahead of product launches with the new chip in 2023.

https://www.theverge.com/2021/11/16/227 ... titor-2023


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Closer to a simple and efficient method of quantum encryption
https://phys.org/news/2021-11-closer-si ... antum.html
by Hebrew University of Jerusalem
Banks and government departments are already investing heavily in quantum encryption that relies on laser beams. However, laser beams often release several photons at once or none at all. A team at Hebrew University developed a system that uses fluorescent crystals. A laser beam shone at these quantum dots causes them to fluoresce and emit a stream of single photons.

Quantum computers will revolutionize our computing lives. For some critical tasks they will be mind-bogglingly faster and use much less electricity than today's computers. However, and here's the bad news, these computers will be able to crack most of the encryption codes currently used to protect our data, leaving our bank and security information vulnerable to attacks. Currently, most computer security relies on mathematical manipulations that, at present, ensure a very high level of security—it would take a regular computer billions of years to break one of those codes. However, in our quantum future, new methods of encryption that rely on the laws of physics, rather than mathematical equations, will need to be developed.
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Serious security vulnerabilities in DRAM memory devices
https://techxplore.com/news/2021-11-vul ... vices.html
by Oliver Morsch, ETH Zurich
Researchers at ETH Zurich have discovered major vulnerabilities in DRAM memory devices, which are widely used in computers, tablets and smartphones. The vulnerabilities have now been published together with the National Cyber Security Centre, which for the first time has assigned an identification number for it.

When browsing the internet on a laptop computer or writing messages on a smartphone, we all like to think that we are reasonably safe from hacker attacks as long as we have installed the latest software updates and anti-virus software. But what if the problem lies not with the software, but with the hardware? A team of researchers led by Kaveh Razavi at ETH Zurich, together with colleagues at the Vrije Universiteit Amsterdam and Qualcomm Technologies, have recently discovered fundamental vulnerabilities affecting the memory component called DRAM at the heart of all modern computer systems.

The results of their research have now been accepted for publication at a flagship IT security conference, and the Swiss National Cyber Security Centre (NCSC) has issued a Common Vulnerabilities and Exposures (CVE) number. This is the first time that a CVE identification has been issued by the NCSC in Switzerland (see box below). On a scale of 0 to 10, the severity of the vulnerability has been rated as 9.
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Partnerships are Key to Commitments from Biden's Summit for Democracy
by Vera Zakem
December 5, 2021

https://techcrunch.com/2021/12/05/partn ... democracy/

Introduction:
(TechCrunch) This week, President Biden will gather leaders from over 100 countries to attend his long-promised virtual Summit for Democracy. After a year of consultation, coordination and action, these leaders will come together once more for a second summit to report on progress on the initial set of commitments to protect human rights, counter authoritarianism and corruption.

Having been born in the former Soviet Union, I cannot help but feel a deep sense of optimism about the summit. Even as a very young child, I felt the chill that came from living in a place that restricted freedom of expression and speech and where information and just about every aspect of life were greatly controlled by the state or a select few in power. My personal experiences make me grateful to be an American citizen. But having lived under an authoritarian regime, I’m acutely sensitive to the reasons this summit is taking place: the democratic recession taking place around the world.

No area is as critical in this democratic competition as technology. If leaders hope to make progress on the three core tenets of the summit, they will have to ensure that technology serves democracy and human rights. This includes facilitating investments in open internet and critical infrastructure as a way to counter digital authoritarianism, countering disinformation, strengthening societal resilience and making greater investments in emerging technologies and tech entrepreneurship that are consistent with democratic values and diversity.

Reporting indicates that we are likely to see commitments made on strengthening the internet, increasing funds for media literacy and civic education and enforcing export controls for dual-use technologies, among other initiatives. These are all useful steps. But if they are to last beyond the summit, they will require public-private-civic partnerships to truly implement and scale. Here are three areas that merit our collective attention: (see article linked above quote box).
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Amazon Web Services are down, taking huge parts of internet offline
Source: The Hill
Amazon Web Services (AWS) were down Tuesday morning, leaving large parts of the internet reliant on the tech giant's services offline.

On its health service dashboard, AWS posted a message at 11:22 a.m. that the company is "investigating increased error rates for the AWS Management Console."

"We are experiencing API and console issues in the US-EAST-1 Region. We have identified root cause and we are actively working towards recovery," AWS said in the message.

The message did not detail what the cause was. A spokesperson for the company declined to detail the identified cause and told The Hill that the message will be updated on the health service dashboard "as it's ready."
Read more: https://www.msn.com/en-us/news/politics ... ar-AARzhJb
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Interesting that we don't have 2TB SD cards yet. It's been almost three years since the first 1TB SD. Any ideas when they'll release higher capacity SDs?
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