Information technology
The term is commonly used as a synonym for computers and computer networks, but it also encompasses other information distribution technologies such as television and telephones.
History of computer technology
Devices have been used to aid computation for thousands of years, probably initially in the form of a tally stick. The Antikythera mechanism, dating from about the beginning of the first century BC, is generally considered to be the earliest known mechanical analog computer, and the earliest known geared mechanism.
Data storage
Early electronic computers such as Colossus made use of punched tape, a long strip of paper on which data was represented by a series of holes, a technology now obsolete. Electronic data storage, which is used in modern computers, dates from World War II, when a form of delay line memory was developed to remove the clutter from radar signals, the first practical application of which was the mercury delay line.
Databases
Database management systems emerged in the 1960 to address the problem of storing and retrieving large amounts of data accurately and quickly. One of the earliest such systems was IBM's Information Management System (IMS), which is still widely deployed more than 40 years later. IMS stores data hierarchically,
Academic perspective
In an academic context, the Association for Computing Machinery defines IT as "undergraduate degree programs that prepare students to meet the computer technology needs of business, government, healthcare, schools, and other kinds of organizations ....
dimanche 18 octobre 2015
Beijing tries to soothe South China Sea jitters
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Beijing holds defence forum as South China Sea festers
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Obama, Park ready to 'engage' North Korea
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NATO and Czech Republic to bolster cyberdefense
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U.S. Navy to join India and Japan in Malabar 2015
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Iran rejects criticism of its missile test
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EU to announce end of Iran sanctions on Sunday: sources
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Iran broadcasts footage of underground missile base
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UN atomic watchdog says Iran probe completed
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Nuclear deal 'opening' for Mideast diplomacy: Steinmeier
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Cathay suspends flights over Iran after missile warning
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US steps up intelligence aid to fight against Boko Haram
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Iraqi forces in huge anti-jihadist push in Baiji
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US troop extension hands Afghanistan a lifeline - for now
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Yemen loyalists 'mistakenly killed' in coalition air raid
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samedi 17 octobre 2015
Lockheed Martin completes 60 tests of laser turret for high-speed warplanes
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Last year, Lockheed Martin began testing a new tactical laser turret for future warplanes. After 60 test flights Lockheed says the 360° capability of the turret system has been verified, moving the technology a step closer to deployment on tactical aircraft flying at near-supersonic speeds.
.. Continue Reading Lockheed Martin completes 60 tests of laser turret for high-speed warplanesSection: Military
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Samsung Gear S2 vs. Huawei Watch
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In some ways Samsung's Gear S2 soars to the highest of smartwatch heights, but it also sinks to some frustrating lows that prevent it from being our top recommendation. Let's see how it compares to one of our top choices of the year, the Huawei Watch.
.. Continue Reading Samsung Gear S2 vs. Huawei WatchSection: Smartwatches
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vendredi 16 octobre 2015
Compact Wheezy trailer snaps onto your bike and makes it electric
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On-bike electric drives like the ConoDrive and Electron Wheel aren't the only means of adding some electric muscle to your pedaling. Powered bike trailers like the compact Ridekick or cargo-hauling Brouhaha bring their own drive wheels and give your pedaling a little extra oomph. The new, UK-designed Wheezy is a compact, easy-to-use electric trailer option. Make your bike a little more Wheezy and you can expect to be a little less so.
Section: Bicycles
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Battelle’s DroneDefender anti-drone beam gun grounds UAVs
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There's recently been a run of new anti-drone systems introduced to deal with potential threats from UAVs, but these have been on the large and expensive side. To provide an affordable alternatives to plug the gap between shotguns and truck-mounted systems, national security research and development firm Battelle is introducing DroneDefender. Billed as the first portable, accurate, rapid-to-use UAV counter-weapon, it's a rifle-like raygun device that uses a radio beam to jam drone control systems and stop them in midair.
.. Continue Reading Battelle’s DroneDefender anti-drone beam gun grounds UAVsSection: Drones
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Scientists create a pumping artificial heart – using foam
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Perhaps you sleep on a memory foam mattress. Well, in the future, a similar material could be used to create artificial body parts. Researchers at Cornell University recently used their new "elastomer foam" to build a functioning fluid pump that looks and works like a human heart.
.. Continue Reading Scientists create a pumping artificial heart – using foamSection: Medical
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Mitsubishi to show high-tech Emirai 3 concept cars in Tokyo
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Mitsubishi Electric Corporation plans to highlight next-generation automotive technologies at the upcoming Tokyo Motor Show. It will show two related forward-looking concept cars, the Emirai 3 xDas and the Emirai 3 xAuto. The former packs a high-tech, multi-screen cockpit with next-generation human-machine interface, while the latter has a range of automated driving features.
.. Continue Reading Mitsubishi to show high-tech Emirai 3 concept cars in TokyoSection: Automotive
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Helmet decal could reduce athletes' head injuries
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If we lived in a world where athletes only received straight-on blows to the head, then regular helmets would offer all the protection needed. In real life, however, helmets usually receive impacts at an angle, with the resulting twisting of the head potentially causing brain injuries to the wearer. Now, scientists from Vancouver's Simon Fraser University have developed something to help keep that from happening – a sticker called the BrainShield.
.. Continue Reading Helmet decal could reduce athletes' head injuriesSection: Health and Wellbeing
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Powered by body heat, Lumen flashlight never needs batteries
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Whether it be for everyday carry (EDC), outdoor adventure, or disaster preparation, flashlights tend to be found towards the top of must-have items. But one common aspect of these luminescent devices is that they're only as good as the batteries inside. If you've ever switched on a flashlight only to experience a flood of frustrated disappointment, you might appreciate owning an "eternal flashlight." Lumen is designed to be powered by body heat, never needing batteries.
.. Continue Reading Powered by body heat, Lumen flashlight never needs batteriesSection: Electronics
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New algorithm minimizes impacts for falling robots
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A team of researchers from the Georgia Institute of Technology has developed an algorithm that teaches robots how to fall, allowing them to trip up with a little more grace, and hopefully cause themselves less damage when they do.
.. Continue Reading New algorithm minimizes impacts for falling robotsSection: Robotics
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New study finds common link between young stars and black holes
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A research project led by the University of Leicester in the UK has identified similarities in the readings from the discs surrounding black holes and young stars, even though the objects have wildly different properties. The discovery was made by studying the brightness variations produced by accretion discs around various astronomical objects. These huge discs of matter play a central part in the growth of most objects in the Universe, providing a common ground for study.
.. Continue Reading New study finds common link between young stars and black holesSection: Space
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Microsoft Surface Book vs. 2015 Retina MacBook Pro
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The Microsoft Surface Book is more of a laptop than a 2-in-1, but it does stay true to its Surface name by letting you rip its screen off to use it as a (gigantic) tablet. Let's see how it compares to a 100 percent purebred laptop, the 13-inch MacBook Pro with Retina Display.
.. Continue Reading Microsoft Surface Book vs. 2015 Retina MacBook ProSection: Laptops
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EasyMile's driverless bus rolls-out in Singapore and California
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A driverless bus developed by French firm EasyMile is to go into operation at a business park in California and a park in Singapore. The EZ10 is operated entirely autonomously and doesn't even have a steering wheel. Easymile says it hopes to have 100-200 EZ10s in operation by 2017.
.. Continue Reading EasyMile's driverless bus rolls-out in Singapore and CaliforniaSection: Automotive
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1960 Ferrari 250 GT SWB sells for $10 million
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Earlier this week a 1960 Ferrari 250 GT short-wheelbase (SWB) Berlinetta (chassis 1995 GT – one just 167 ever built), sold for £7,392,000 (US$11,439,774), becoming just the 26th car in history to sell for beyond seven figures. The 55 year old red V12 Ferrari had been donated by the late Richard Colton, a Ferrari collector, to the Royal National Lifeboat Institution (UK). Read on for full details of this new inductee into the de facto auction car "hall of fame" plus pics and auction links to all 26 cars.
.. Continue Reading 1960 Ferrari 250 GT SWB sells for $10 millionSection: Automotive
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Burntwood School wins 2015 Stirling Prize
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The 2015 RIBA Stirling prize has been awarded to Allford Hall Monaghan Morris (AHMM) architects for Burntwood School. AHMM’s transformation of Burntwood School is said to reimagine a 1950s modernist secondary school campus for 2,000 girls and 200 staff. It was selected from a shortlist of six finalists.
.. Continue Reading Burntwood School wins 2015 Stirling PrizeSection: Architecture
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Renzo Piano renovating Moscow power station into art gallery
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Renzo Piano Building Workshop, the eponymous firm of the Italian architect behind London's Shard building, is turning a large Moscow power station into an art space. Commissioned by the V-A-C Foundation, which promotes Russian contemporary art, the project is due to be completed by early 2019.
.. Continue Reading Renzo Piano renovating Moscow power station into art gallerySection: Architecture
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Meson f0(1710) could be so-called “glueball” particle made purely of nuclear force
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Terms to describe the strange world of quantum physics have come to be quite common in our lexicon. Who, for instance, hasn't at least heard of a quark, or a gluon or even Schrodinger's cat? Now there's a new name to remember: "Glueball." A long sought-after exotic particle, and recently claimed to have been detected by researchers at TU Wien, the glueball's strangest characteristic is that it is composed entirely of gluons. In other words, it is a particle created from pure force.
.. Continue Reading Meson f0(1710) could be so-called “glueball” particle made purely of nuclear forceSection: Science
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Tonke turns the new VW T6 into versatile camper van
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Volkswagen introduced the sixth-generation Transporter van back in April, and camper van converters quickly got to work showing their new T6 camper van packages. We saw the new California from Volkswagen itself, and now Dutch converter Tonke, best known for its stylish wood and aluminum-skinned camper modules, has transformed the new VW into a slick, versatile explorer.
.. Continue Reading Tonke turns the new VW T6 into versatile camper vanSection: Automotive
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SkinSuit designed to reduce harmful physical effects of weightlessness tested on ISS
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The crew of the International Space Station (ISS) got a fashion show with a medical twist last month as Denmark’s first astronaut, Andreas Mogensen, donned a SkinSuit designed to counteract the harmful effects of prolonged periods of weightlessness on the human body. Developed as part of an international effort led by RMIT University in Melbourne, Australia, the new suit is designed to simulate the pressures of normal gravity to prevent unhealthy stretching of the spine.
.. Continue Reading SkinSuit designed to reduce harmful physical effects of weightlessness tested on ISSSection: Space
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