techo_choco: 2013

Tuesday 7 May 2013

Samsung to launch Galaxy S4 first in Seoul

Samsung Electronics saidthat it will roll out its new flagship smartphone model Galaxy S4 in Seoul for the first time across the globe.

The latest version of Samsung's Galaxy series will be available for sale to South Korean customers from Friday through three local mobile operators, including SK Telecom, KT Corp. and LG Uplus, according to an e-mailed statement.

The smartphone giant planned to launch the Galaxy smartphone via 327 wireless carriers, including AT&T, Vodafone and Telefonica, in 155 countries during the second quarter.

The Galaxy S4, equipped with most high-quality features, was expected to sell well, with its archrival Apple having no plan to launch a new model in the near future.

Apple allegedly delayed the launch of its new model to the third quarter from the second quarter.

Global sales of the Galaxy S3 reached around 38 million units since its launch in May 2012, according to Sophia Kim, analyst with Woori Investment & Securities. The Galaxy S4 was estimated to exceed its predecessor, with its sales touching 65 million units by year-end.

The new model had the 5-inch full HD AMOLED display with a resolution of 1920 by 1080, with 1.9 GHz quad-core processor and 1. 6 GHz octa-core processor depending on regions.

The "Smart Pause" function would enable users to control the screen by where they look. When users are watching a video, the video pauses when they look away then it starts right up again where they are back.

The new model also has a "Smart Scroll" function that would allow users to scroll the browser or emails up and down without touching the screen. It recognizes users' face looking at the screen and movement of their wrist and then scroll the pages up or down accordingly.

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Friday 3 May 2013

Australian scientists make breakthrough on quantum computers

Australian scientists has made a breakthrough that brings the prospect of a network of ultra- powerful quantum computers -- connected via a quantum internet -- closer to reality, the University of New South Wales (US) said in a statement on Thursday.

The study, published in the journal Nature, is a collaboration between researchers from the ARC Center of Excellence for Quantum Computation and Communication Technology based at US, the Australian National University and the University of Melbourne.

According to the statement, the research team is the first in the world to have detected the spin, or quantum state, of a single atom using a combined optical and electrical approach.

Quantum computers promise to deliver an exponential increase in processing power over conventional computers by using a single electron or nucleus of an atom as the basic processing unit -- a quantum bit, or qu-bit.

By performing multiple calculations simultaneously, quantum computers could be applied to economic modeling, fast database searches, modeling of biological molecules and drugs, and encryption and decryption of information.

Lead author of the study, US's Dr. Chunming Yin, said the new approach opens up the possibility of using light to couple the atoms, or qubits, together to form a quantum computer.

"Using light to transfer information in the quantum state is easier than doing it electrically. Ultimately this will lead to quantum communications over long distances." Yin said.

Associate Professor Matthew Sellars, of the Australian National University, said it was a step towards connecting a solid state quantum computer to what will be the quantum internet.

"The quantum internet will allow separate quantum computers to be integrated and it will enable encrypted communications."

Quantum communication systems will become critical for providing secure communications for government, military, defense, finance business and health industries.