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

Beijing (AFP) Oct 17, 2015
Beijing sought to soothe tensions over its South China Sea claims Saturday, saying it will avoid the use of force in the region as the US ponders sending warships close to territory claimed by the Asian giant. Speaking at the Xiangshan regional defence forum in Beijing, Fan Changlong, vice-chair of China's Central Military Commission, pledged that the country would "never recklessly resort t

Beijing holds defence forum as South China Sea festers

Beijing (AFP) Oct 16, 2015
China gathered defence officials and experts from across the Asia-Pacific in Beijing Friday for a three-day security forum intended to boost the Asian giant's influence on the global stage. The Xiangshan, or Fragrant Hills, conference comes as tensions rise between Washington and Beijing, the region's two largest economic and military powers, over the latter's construction of artificial isla

Obama, Park ready to 'engage' North Korea

Washington (AFP) Oct 16, 2015
US President Barack Obama and his South Korean counterpart stressed their readiness to "engage" nuclear-armed North Korea Friday, albeit with conditions. Hailing the Washington-Seoul alliance as the "lynchpin" of security on the Korean Peninsula, Obama welcomed Park Geun-Hye to the White House and said his nuclear deal with Iran carried lessons for Northeast Asia. If Pyongyang is willin

NATO and Czech Republic to bolster cyberdefense

Washington Oct 14, 2015
Officials from NATO and the Czech Republic signed a Memorandum of Understanding aiming to improve cooperation and assistance on cyberdefense. The document was signed by NATO Assistant Secretary General Ambassador Sorin Ducaru, and Czech Director of National Security Dušan Navrátil. The document is a follow up to the Enhanced NATO Policy on Cyber Defense in 2014. The Czech Republic is the first

U.S. Navy to join India and Japan in Malabar 2015

Chennai, India (UPI) Oct 14, 2015
Navies from the U.S., India, and Japan will participate in naval military exercise Malabar 2015 beginning on Wednesday. Malabar is a complex military exercise that has traditionally been held by the U.S. and India with Japanese forces sitting in as observers. Japan will now be a permanent participant as the country embraces more activist military policies, according to Defense News. The

Iran rejects criticism of its missile test

Tehran (AFP) Oct 17, 2015
Iran said on Saturday that its recent test launch of a long-range missile does not violate UN Security Council resolutions as claimed by the United States and France. "Our missile tests have nothing to do with Resolution 2231, which only mentions missiles designed to carry nuclear warheads," Iranian Foreign Minister Mohammad Javad Zarif told a news conference. Speaking in Tehran alongsid

EU to announce end of Iran sanctions on Sunday: sources

Brussels (AFP) Oct 16, 2015
The EU will announce Sunday the formal end to damaging economic sanctions imposed on Iran over its nuclear programme which the West feared would give Tehran the atomic bomb, Western diplomatic sources said. They said the decision will take effect around the end of the year after the International Atomic Energy Agency (IAEA) certifies that Iran has met its commitments under a landmark July ac

Iran broadcasts footage of underground missile base

Tehran (AFP) Oct 14, 2015
Iranian state television broadcast unprecedented footage Wednesday of a deep underground tunnel packed with missiles and launcher units, which officials said could be used if "enemies make a mistake". The pictures were released just three days after Iran tested a new long-range missile that the United States said may have breached a UN Security Council resolution. The footage also came a

UN atomic watchdog says Iran probe completed

Vienna (AFP) Oct 15, 2015
The UN atomic watchdog said Thursday it has completed on schedule gathering information in its probe into Iran's alleged past efforts to develop nuclear weapons. The International Atomic Energy Agency said that, in line with a plan agreed with Iran in July, its chief Yukiya Amano will now provide a "final assessment" on the investigation by December 15. The IAEA keeps close tabs on Iran'

Nuclear deal 'opening' for Mideast diplomacy: Steinmeier

Tehran (AFP) Oct 17, 2015
The nuclear deal between Iran and the world powers is "an opening for further diplomatic endeavours" to resolve the conflicts in the Middle East, the German foreign minister said in Tehran Saturday. "This region needs more diplomacy, not less" said Frank-Walter Steinmeier, pointing to the conflicts in Syria, Yemen and Iraq, according to the text of a speech he delivered. "We need and w

Cathay suspends flights over Iran after missile warning

Paris (AFP) Oct 14, 2015
Cathay Pacific said Wednesday it had suspended flights over Iran and the Caspian Sea after an aviation safety body issued a warning about Russian missiles being fired at Syria, while some European airlines have also taken measures. The European Aviation Safety Agency (EASA) took action to avoid a repeat of the tragedy involving Malaysia Airlines flight MH17, which was shot down over war-torn

US steps up intelligence aid to fight against Boko Haram

Yaounde, Cameroon (AFP) Oct 17, 2015
The imminent deployment of 300 US soldiers in Cameroon is intended to provide nations around Lake Chad with what they most lack in the battle against Boko Haram: reliable intelligence. On Thursday and Friday, suicide bombers from the Islamist sect slew dozens of people in attacks on Maiduguri in northeast Nigeria, where the radical movement first emerged. The insurgency has claimed at least

Iraqi forces in huge anti-jihadist push in Baiji

Baiji, Iraq (AFP) Oct 16, 2015
Iraqi forces defused booby traps and hunted down holdout jihadists in the strategic Baiji area Friday as part of their biggest advance against the Islamic State group in months. Baiji lies at a crossroads between several frontlines, and control of the area is seen as the key to progress in other regions, including Anbar province where forces were also closing in on IS strongholds. The ar

US troop extension hands Afghanistan a lifeline - for now

Kabul (AFP) Oct 18, 2015
The United States' decision to extend its military presence in Afghanistan beyond 2016 has thrown the war-ravaged country's government a much needed lifeline even as its dysfunctionality, blamed for the Taliban's revival, shows no signs of abating. It has been just over a year since Ashraf Ghani was sworn in as president as part of a US-brokered unity government with his main election rival,

Yemen loyalists 'mistakenly killed' in coalition air raid

Sanaa Oct 17, 2015
A Saudi-led coalition air strike "mistakenly" hit a position held by pro-government forces in southern Yemen Saturday, causing casualties, officials, medics and witnesses said. At least 30 were killed and 40 others were wounded in the strike on Waziya, an area between Taez and Lahj provinces where rival forces have been fighting since late September, the medics and witnesses said. But Ab

samedi 17 octobre 2015

vendredi 16 octobre 2015

Compact Wheezy trailer snaps onto your bike and makes it electric

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Like a strong wind at your back, the Wheezy gives you some extra momentum

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.


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Section: Bicycles

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Battelle’s DroneDefender anti-drone beam gun grounds UAVs

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The Battelle DroneDefender is a portable anti-UAV beam weapon

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.

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Section: Drones

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Mitsubishi to show high-tech Emirai 3 concept cars in Tokyo

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Inside the high-tech cockpit of the Emirai 3 xDas

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.

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Section: Automotive

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Helmet decal could reduce athletes' head injuries

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Postdoctoral fellow Daniel Abram – who is also CTO of spin-off company Shield-X – with a ...

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.

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Section: Health and Wellbeing

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Powered by body heat, Lumen flashlight never needs batteries

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The Lumen flashlight uses a thermoelectric generator to transform body heat into electricity to power an ...

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.

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Section: Electronics

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New study finds common link between young stars and black holes

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Researchers have found similarities in the accretion discs around vastly different astronomical objects, including black holes, ...

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.

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1960 Ferrari 250 GT SWB sells for $10 million

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This 1960 Ferrari 250 GT short-wheelbase SWB Berlinetta sold for £7,392,000 (US$11,439,774)

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.

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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.

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Meson f0(1710) could be so-called “glueball” particle made purely of nuclear force

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Researchers at TU Wien claim to have discovered the elusive

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.

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Tonke turns the new VW T6 into versatile camper van

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The all-new Tonke Van

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.

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SkinSuit designed to reduce harmful physical effects of weightlessness tested on ISS

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European Space Agency astronaut Andreas Mogensen wearing the SkinSuit on board the International Space Station

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.

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