Items tagged with: computer
In the past month, official resolutions against 5G have been adopted by the cantons of Geneva, Vaud, Jura and Neuchâtel in Switzerland. These are the first four Swiss regions to pass ordinances against 5G installation (see chart below), comprising 1.5 million people (18.1% of national population).
Despite that, the majority state-owned Swisscom defied these laws on April 17, when they activated 5G stations in 102 locations in Switzerland, including Basel, Bern, Chur, Davos, Geneva, Lausanne (Vaud) and Zurich. They did so by upgrading existing antennas installed for previous generations of wireless technology.
#5G #SWITZERLAND #schweiz #WiFi #technology #telephone #health #hazard #pollution #computer
#usb #malware #computer #security #technology
#sound #music #art #media #internet #computer #radio #podcast #web #technology #netlabel
ShadowHammer: A High Profile Supply Chain Attack
Asus PE images for Windows OS were infected with a backdoor and signed with two valid certificates, issued for ASUSTeK Computer Inc. by the DigiCert CA which were valid from 15/6/2015 to 19/6/2018. Also affected were some games. One infected code example, which was uploaded to an online virus check service, was named link.exe, which is the linker of MS Visual Studio.
The payloads have some common filter switches - elevated right check via SeDebugPrivilege, process check (wireshark.exe, perfmon.exe etc) but also rather unusual ones - a certain mutex (this might be sort of a debug function) and the system language (payload stops execution if system language is russian or chinese). But the weirdest filter switch is a hardcoded list of 600 MAC addresses and it's not a black- but a whitelist - the payload starts execution only if one of the 600 MACs is found. Which leads to the conclusion that this was a targeted operation against 600 users who are unknown by now. There might be other MAC lists, but this is very strange.
#computer #attack #virus
"all over the world multiple copies of the Institute for Advanced Study computer were being built with a constant stream of visitors coming to Princeton to learn the new techniques. The mathematicians sided against the computer and generally agreed that the machine belonged somewhere else. 'It is time Von Neumann revolutionized some other subject. He is spent rather too long in the field of automatic computation.' Use of computers was a very funny subject in the early days because it was slightly beneath the Dignity of mathematicians. Engineers were used to doing calculations but mathematicians weren't." - George Dyson , Turing's Cathedral: The Origins of the Digital Universe (2012)
Von Neuman's charm was able to get the institute to house a computer, but under protest. Once he died, they got rid of it as soon as they could, throwing away the opportunity to be a power in early computers. Can't say I know many mainstream mathematicians to say whether they still hold calculation to be beneath them and computers outside their field.
soon in technoarte latino, a short performance by se¿o:
a table-top carbon-based artisanal computer
come and witness the presentation of ttcbac: a computation machine that is part pieces of wood, part human, and part set of rules. this hybrid living being will be slowly performing a section of a possibly infinite algorithmic procedure. at the same time, it will speak words related to its importance as a useless system in an era of speed, productivity, extraction and exploitation.sunday, may 5, 14:00 to 16:30, princeton public library, free entrance
ven a presenciar la presentación de ttcbac: una máquina computacional que es parte piezas de madera, parte humana, y parte serie de reglas. mira cómo este ser vivo híbrido realiza lentamente una sección de un procedimiento algorítmico tal vez infinito, a la vez que habla sobre su importancia como un sistema inútil en estos tiempos de velocidad, productividad, extracción y explotación.
#event #princeton #performance #computer #technoartelatino
la consagración de la computadora (the rite of computing): video
video del estreno:
la consagración de la computadora (the rite of computing) - /eccs/chsnec - (full performance 2019-04-14)
la consagración de la computadora (the rite of computing) es una danza que se convierte en computadora, máquina, organismo... una ceremonia, colaboración y celebración entre elementos humanos y no-humanos: una máquina computacional lenta, sudorosa, orgánica, ineficiente, bailada, turing completa; realizando un proceso de vida potencialmente infinito...#danza #dance #computadora #computer #peertube #culturalibre #freeculturalwork
August Luhrs, Isa Vento, se¿o, mel*
un proyecto de:
en colaboración con:
Ana López-Reyes, August Luhrs, Isa Vento, mel*, Nicolás Sanin,
ITP - NYU
Brooklyn, New York
new page / photos / video --- premiere of the rite of computing
la consagración de la computadora (the rite of computing)
danza que se convierte en computadora, máquina, organismo... la consagración de la computadora es una ceremonia, colaboración y celebración entre elementos humanos y no-humanos: una máquina computacional lenta, sudorosa, orgánica, ineficiente, bailada, turing completa; realizando...
#danza #dance #computer #computadora
#metastructures #equations #light #analog #nanophotonic #physics #electronics #optics #science #metamaterial #technology #computer
Inverse-designed metastructures that solve equations....Signal processing of light waves can be used to represent certain mathematical functions and to perform computational tasks on signals or images in an analog fashion. Such processing typically requires complex systems of bulk optical elements such as lenses, filters, and mirrors. Mohammadi Estakhri et al. demonstrate that specially designed nanophotonic structures can take input waveforms encoded as complex mathematical functions, manipulate them, and provide an output that is the integral of the functions. The results, demonstrated for microwaves, provide a route to develop chip-based analog optical computers and computing elements.
Metastructures hold the potential to bring a new twist to the field of spatial-domain optical analog computing: migrating from free-space and bulky systems into conceptually wavelength-sized elements. We introduce a metamaterial platform capable of solving integral equations using monochromatic electromagnetic fields. For an arbitrary wave as the input function to an equation associated with a prescribed integral operator, the solution of such an equation is generated as a complex-valued output electromagnetic field. Our approach is experimentally demonstrated at microwave frequencies through solving a generic integral equation and using a set of waveguides as the input and output to the designed metastructures.
#metastructures #equations #light #analog #nanophotonic #physics #electronics #optics #science #metamaterial #technology #computer
#IoT #honeypots #SSH #cybercriminal #COMPUTER #TECHNOLOGY #SOFTWARE #HARDWARE #INTERNET #WEB
MIT researchers have designed a novel flash-storage system that could cut in half the energy and physical space required for one of the most expensive components of data centers:data storage.
#flash #storage #data #MIT #COMPUTER #TECHNOLOGY HARDWARE #SOFTWARE..... Dhan
#Wayve #car #autonomous #AI #SatNav #Google #Waymo #Uber #Cruise #Aurora #TECHNOLOGY #IoT #computer
The Keysight IoT Innovation Challenge is Now Open!....Registration for the IoT Innovation Challenge is now open and entries are being accepted. All entries must be submitted by May 15, 12:00 noon PDT. Be one of the first 80 people in each of the competition regions to successfully register and submit a qualified entry (either as an individual or as part of a team) and win a handheld digital multimeter. Individual and team entries are invited from undergraduate and graduate students in eligible countries (see Rules for complete list).
#IoT #Innovation #COMPETITION #STUDENTS #ELECTRONICS #COMPUTER #WEB #INTERNET #HARDWARE #SOFTWARE #SCIENCE #TECHNOLOGY
reminder: this sunday!
join us for the world premiere of la consagración de la computadora (the rite of computing)
a dance that
this sunday! april 14th, 2019
5:30pm to 7:30pm
doors open, exhibition 5:00pm
performance from 5:30pm to 6:30pm
discussion, exhibition and mingling 6:30pm to 7:30pm
176 st nicholas ave, bushwick, brooklyn, new york
event page && rsvp here!
#dance #computer #brooklyn #newyork #event #maydayspace #freeculturalwork
#computer #internet #chat
WDR (inoffiziell) wrote the following post Thu, 11 Apr 2019 10:37:27 +0200
Die Firma Open-Xchange (OX) aus Olpe entwickelt eine neue Messenger-App alternativ zu WhatsApp. Mit "COI" soll das Chatten sicherer werden.
Ein Olper IT-Unternehmen will mit einer neuen Messenger-App eine sichere Alternative zu WhatsApp schaffen
#StudioSiegen #Südwestfalen #Olpe #FirmaOpen-Xchange #Messenger #Alternative #NRW
This article clearly show why: The three simple reasons why I won't switch to #Android anytime soon http://bit.ly/2X3TQka
Three out of two reasons were not about the #smartphone. It's better because of #MacOS.
Other one reason is about malicious app thing.
So is he talking about the #smartphone or #computer?
Android vs iPhone became Android vs iPhone+MacOS--and +#AppleWatch.
Many geeks believe #MacOS was superior than #Windows. But truth is nobody cares about #MacOS.
#Why? Why people don't buy fancy cars like Lamborghini?
Katie Bouman, 29, has earned plaudits for helping develop the algorithm that made the photo possible.
Article word count: 674
HN Discussion: https://news.ycombinator.com/item?id=19632086
Posted by tigerlily (karma: 437)
Post stats: Points: 252 - Comments: 107 - 2019-04-11T08:25:22Z
#HackerNews #behind #black #bouman #computer #first #hole #image #katie #scientist #the
Media playback is unsupported on your device
Media captionKatie Bouman designed an algorithm that made the image possible
A 29-year-old computer scientist has earned plaudits worldwide for helping develop the algorithm that created the first-ever image of a black hole.
Katie Bouman led development of a computer programme that made the breakthrough image possible.
The remarkable photo, showing a halo of dust and gas 500 million trillion km from Earth, was released on Wednesday.
For Dr Bouman, its creation was the realisation of an endeavour previously thought impossible.
Excitedly bracing herself for the groundbreaking moment, Dr Bouman was pictured loading the image on her laptop.
"Watching in disbelief as the first image I ever made of a black hole was in the process of being reconstructed," she wrote in the caption to the Facebook post.
She started making the algorithm three years ago while she was a graduate student at the Massachusetts Institute of Technology (MIT).
There, she led the project, assisted by a team from MITʼs Computer Science and Artificial Intelligence Laboratory, the Harvard-Smithsonian Center for Astrophysics and the MIT Haystack Observatory.
The black hole image, captured by the Event Horizon Telescope (EHT) - a network of eight linked telescopes - was rendered by Dr Boumanʼs algorithm.
In the hours after the photoʼs momentous release, Dr Bouman became an international sensation, with her name trending on Twitter.
Image caption The first ever photo of a black hole, taken using a global network of telescopes
In a tweet, New York Democratic Rep Alexandria Ocasio-Cortez wrote that Ms Bouman should take her "rightful seat in history".
"Congratulations and thank you for your enormous contribution to the advancements of science and mankind," she tweeted. "Hereʼs to #WomenInSTEM!," which stands for science, technology, engineering and mathematics.
Dr Bouman was also hailed by MIT and the Smithsonian on social media.
"3 years ago MIT grad student Katie Bouman led the creation of a new algorithm to produce the first-ever image of a black hole," MITʼs Computer Science & Artificial Intelligence Lab wrote. "Today, that image was released."
But Dr Bouman, now an assistant professor of computing and mathematical sciences at the California Institute of Technology, insisted the team that helped her deserves equal credit.
The effort to capture the image, using telescopes in locations ranging from Antarctica to Chile, involved a team of more than 200 scientists.
"No one of us couldʼve done it alone," she told CNN. "It came together because of lots of different people from many different backgrounds."
What do we know about the black hole?
* The black hole, which is "unseeable" to the naked eye, measures 40 billion km across, or three million times the size of the Earth * It was scanned over a period of 10 days in the Messier 87 galaxy * It is "larger than the size of our entire Solar System", Prof Heino Falcke, of Radboud University in the Netherlands, who proposed the experiment, told the BBC
How did her algorithm create the image?
Put simply, Dr Bouman and others developed a series of algorithms that converted telescopic data into the historic photo shared by the worldʼs media.
In mathematics and computer science, an algorithm is a process or set of rules used to solve problems.
No single telescope is powerful enough to capture the black hole, so a network of eight was set up to so do using a technique called interferometry.
The data they captured was stored on hundreds of hard drives that were flown to central processing centres in Boston, US, and Bonn, Germany.
Image caption The eventual EHT array will have 12 widely spaced participating radio facilities
Dr Boumanʼs method of processing this raw data was said to be instrumental in the creation of the striking image.
She spearheaded a testing process whereby multiple algorithms with "different assumptions built into them" attempted to recover an photo from the data.
The results of the algorithms were then analysed by four separate teams to build confidence in the veracity of their findings.
"Weʼre a melting pot of astronomers, physicists, mathematicians and engineers, and thatʼs what it took to achieve something once thought impossible," Dr Bouman says.
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From the time of free software's inception, with Richard Stallman's announcement of the GNU Project in 1984, community has been a central part of its philosophy: we must be free to choose to share any software we use or create. Stallman wrote, "I consider that the golden rule requires that if I like a program I must share it with other people who like it," and from this point concluded that we must always be permitted to share our discoveries and innovations with others, in order to make their computing and their lives easier and better. Software that is free always has benefits beyond the individual, and the free software movement depends on a vibrant, ever-changing, committed pool of developers, activists, users, and enthusiasts to keep the dream alive and the movement growing.
#LibrePlanet #FSF #FOSS #FREE #STALLMAN #SOFTWARE #HARDWARE #TECHNOLOGY #COMPUTER
USB doesn't have to be removed safely any longer!
With Windows 10 1809, Microsoft is changing the default setting that's applied to USB drives and other removable media. The change means that the default policy applied to removable storage devices is Quick Removal rather than Better Performance -- so you can now just pull it out without a second thought.
The change comes as the October 2018 Update rolls out, and Microsoft explains that: "Windows defines two main policies, Quick removal and Better performance, that control how the system interacts with external storage devices such as USB thumb drives or Thunderbolt-enabled external drives. Beginning in Windows 10 version 1809, the default policy is Quick removal. ".
#Windows #News #Hardware #SafeRemoval #Computer #Technology
TL;DR: This book will not teach you how to use OpenGL or DirectX; instead, it can teach you how OpenGL and DirectX work. In practice you won’t write a software renderer for production use, but…
Article word count: 833
HN Discussion: https://news.ycombinator.com/item?id=19584921
Posted by pcr910303 (karma: 140)
Post stats: Points: 270 - Comments: 44 - 2019-04-05T17:26:12Z
#HackerNews #computer #from #graphics #scratch
TL;DR: This book will not teach you how to use OpenGL or DirectX; instead, it can teach you how OpenGL and DirectX work. In practice you won’t write a software renderer for production use, but understanding how and why a renderer works will let you use OpenGL and DirectX more effectively.
Computer Graphics is a fascinating topic - how do you make Toy Story out of algorithms and some geometric data? Interestingly enough, it’s a mysterious topic not only for the average cinema fan, but also for world-class engineers who just haven’t been exposed to it.
Computer Graphics is also a frighteningly broad topic. From 3D rendering to photographic image filters, from fonts to particle systems, there’s a multitude of disciplines that can be categorized under CG. This work focuses exclusively on 3D rendering.
Computer Graphics from scratch is my humble attempt to demystify that slice of Computer Graphics in an accessible way. It can be easily understood by high-school students, while covering the same topics of an university course. It is, in fact, based on my years of teaching the subject at my university.
There’s little pre-requisite knowledge, nor hardware or software dependencies. The only primitive used in the book is a method that lets us set the color of a pixel - hence “from scratch”. The algorithms are conceptually simple, and the math is straightforward. There is some high-school level trigonometry. There’s some basic Linear Algebra as well, but I’m including an appendix that can be consulted as necessary.
This work is divided in two main parts, Raytracing and Rasterization, which focus on the two main ways to make pretty pictures out of data. The Common concepts chapter introduces some basic knowledge necessary to understand these two parts.
The focus of this work is not on performance, but on clear conceptual exposition. The sample code is, well, sample code, written in the most clear way possible, which may not be the most efficient way to implement the algorithms. Where there are different ways to do something, I’ve chosen the easiest to understand.
The “end result” of this work is two complete, fully functional renderers: a raytracer and a rasterizer. Although they follow very different approaches, they produce similar results when used to render a simple scene:
While their sets of features have considerable overlap, they aren’t identical, so this book covers their specific strenghts:
Why read this?
This work should give you all the knowledge necessary to write software renderers. Although in the age of GPUs few people have good reasons to write a pure software renderer, the experience of writing one is valuable for the following reasons:
1. Shaders. The first GPUs had their algorithms hardcoded in hardware, but in modern ones you’re expected to write your own shaders. In other words, you’re still implementing big chunks of rendering software, except it now runs on the GPU.
2. Understanding. Whether you’re using a fixed pipeline or writing your own shaders, understanding what’s going on behind the scenes lets you use the fixed pipeline better and write better shaders.
3. Fun. Few areas of Computer Science have the kind of immediately visible results offered by Computer Graphics. The sense of accomplishment you get when your SQL query runs just right is nothing compared to what you feel the first time you get ray traced reflections right. I taught Computer Graphics at my university for 5 years. I often wondered why I enjoyed teaching the same thing semester after semester for so long; in the end, what made it worth it was seeing the faces of my students light up and use their first renders as desktop backgrounds.
Work in progress
This is a work in progress. Here’s a non-exhaustive to do list:
* Texture filtering * Normal mapping * Textures in the raytracer * Shadows in the rasterizer (stencil and shadow maps) * Reflection in the rasterizer * Expand the CSG and Refraction sections into chapters * Linear algebra appendix * Make demos interactive * Clean up demo code
Feel free to contribute or to correct mistakes - all the text, diagrams and demos are in Github. PRs welcome!
I’m a software engineer who founded and ran a game development company (which you haven’t heard of), worked at Google (which you have heard of), and now works at Improbable (who have a good shot at building the Matrix, for real - or at the very least revolutionise multiplayer game development).
I taught Computer Graphics for 5 years at my university, where it was a semester-long 3rd year subject. I am grateful to all of my students, who served as unwitting guinea pigs for the materials that have inspired this book.
I have other interests besides Computer Graphics, engineering-related and otherwise. See my website for more details and contact information.
Found an error? Everything is in Github.
© Gabriel Gambetta 2017
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Dieses Wochenende: Systemabsturz von Navigationsgeräten? | SWR Wissen
#Ort #Zeit #Signal #Satellit #Computer #Positionsbestimmung #Galileo #Atomuhr #Flugzeug #Navigation #Informatik #Uhr #Position #GPS #System