Security expert: Sony computer network is still not safe

Thanks North Division is a great place for posting
Associate Professor, Department of Beijing Normal University Physics Xiaowen Li collaboration with colleagues at the University of Maryland, recently in the design of physical random number generators have made breakthrough progress. They designed a multichannel, independently of each other, high-speed physical random number generator, the use of ultra broadband optical noise of amplified spontaneous emission of led, through two non-overlapping the optical transmittance filters separate the two signals, each channel bit rate of up to 10G/s. Use this method at the same time produce more than one bit of random bits in parallel, greatly improved the rate of random number generators and upgrade capabilities.

Previously, people had made algebra (software) and based on cellular automata (hardware) parallel pseudo random number generator. Xiaowen Li proved for the first time, from a single optical noise sources, does not need an external optical amplification, and gain, you can also get multiple independent of the bit stream. To date, this is the first parallel output of physical random number system, to fast parallel physical random number generator based on chip has taken an important step. In addition, by using more filters, parallel output can reach at least 20 the number of channels, bit rate can reach new Trojan 200G/s.

Random number generators in the field of business and science have a wide range of applications, including secure key generation, communications, game theory and Monte Carlo calculations. High performance parallel computing demands made using parallel random number, commercialization of the program using a photoelectric device, it is easy to integrate into chip, high performance random number generator as a computer application.

Tags: computer, Expert, network, security, Still

Scientists develop underwater computer dialogue between humans and dolphins are expected to achieve

According to foreign media reports, the United States 50 engineers at the University of Maryland after two years of arduous research, creating a human-driven helicopter, drivers push the pedals you can power the aircraft, will today (12th) test into the sky. History of human flight, has not yet successfully tested human helicopter, 1994 a Japan Human helicopter engineer flight test, but only about 0.2 m from the ground where flew for 19.46 seconds.

12th, if this human helicopters could fly over to 3 m high, and stays in the air more than a minute, then the University of Maryland’s engineers will be able to win the Sikorsky prize of US $ 250,000 (Sikorsky Prize).

Sikorsky prize is a United States helicopter society (American Helicopter Society) which was established in 1980 to encourage engineers research produced the first human-driven helicopter.

Human helicopter does not like ordinary aircraft with fixed wings. Only by constantly push pedal, pilots to achieve enough thrust fly on the sky.

United Kingdom Manchester University Antonio feilipuli (Antonio Filipponee) said: “If there is a fixed wing, only needs to provide forward thrust of aircraft to aircraft can be launched, because the fixed-wing itself upward lift will be provided. But the helicopter does not have a fixed wing, so at least 15 times times greater than normal aircraft power to take off, this is a great challenge. ”

Engineers at the University of Maryland to produce this human helicopter also has a name called “beauty”. “Beauty” fuselage 18.29 metres long, each rotor is 12.8 meters in diameter, placed on the ground about a standard football field area, one-third, but only 63.5 kg in weight.

12th, 24 year old biology student Judy-weikesile (Judy Wexler) will drive the aircraft into the sky. She has been selected, is because the weight is light, but it is also a cyclist, physically very strong.

Tags: achieve, between, computer, develop, dialogue, dolphins, expected, humans, scientists, underwater

IDC:2015 years of 13% computer use ARM chips

Report from IDC, in the next 4 years, computers will quickly using ARM processors as computing a large part. It is expected by 2015, the ARM’s share will reach 13%. Rapid rise, and AMD shares close at the beginning of this year, which happens to be 18.9%. The report did not ARM is expected to be a threat Intel, earlier this year, its share of the 80.8%.

It is worth noting that Windows 8, is likely to run on the ARM in 2012-2013, imagine, ARM-based computer running Windows.

Text/open source community of China

Tags: chips, computer, IDC2015, years

QQ computer Butler official version of the 4.7 release

Thanks news of Murong fish bubble drop
QQ computer Manager 4.7 released, health assistants caring loving every second. Butler 4.7 Beta launched in mid-April health assistants, three nuclear engine, 3G wireless Internet access new features such as traffic statistics! Health assistants by the majority of the user’s attention and praise. In the 4.7Beta1 release, steward team quickly improves the user experience feedback issues, QQ computer Manager 4.7 version is published, killing the more thorough, run more smoothly.

QQ computer Manager 4.7
Release date: May 05, 2011
Size: 36.7M
Download: http://dl_dir2.qq.com/invc/qqpcmgr/setup/QQPCMgr_Setup_47_1304.exe

What’s
new：
1. new health Assistant capabilities;
2. new three nuclear engine killing the stubborn trojans;
3.
3G wireless Internet traffic statistics;
4. Web firewall capacity enhanced.

Report: QQ computer Manager 4.7 version update details
1.
New health Assistant capabilities, intimate love every second

Universal application of the computer, not only brought convenience to the people work and live and infinite pleasures, also greatly improves the efficiency of the work. However, computer health for a long time, but it is a problem. Therefore, QQ computer stewards of health care for the majority of users, this release has launched the “health assistants”!

“Health assistants” contains 3 health settings:

（1 ) Eye-color scheme: QQ computer Butler will help users from the dazzling white of the background color of the system of distribution into a soft green, when you long to read text, soft background color helps to alleviate eye fatigue.

（2 ) Scheduled rest:long-term use of computers, will make eye fatigue and shoulder spine injuries. QQ computer Butler recommends that you do not sit next to the computer for a long time, at least a 3-minute break every hour, you can use this 3 minute rest time leaving the seat, for a walk, active body.

（3 ) Timed shutdown:play games, chat, often makes us forget time, looked up table already to the middle of more than 1. Long-term stay up will cause great harm to our health, health assistants either by regular shutdown feature lets you develop good work habits.
点击 “ More health knowledge ”
Understand and grasp the front of the computer self health care knowledge.

2. three new nuclear engine, comprehensive upgrade, Super killing the stubborn trojans

QQ computer Manager from the version 4.7, the introduction of international leading local killing the engine, greatly improving the Trojans killing ability. After you have installed QQ computer Butler, which is the default engine mode is turned, while virus will automatically upgrade, let you easily can experience powerful Trojan engine killing ability.

3. wireless Internet traffic statistics, clear 3G flow cost
This feature is the simplest, most practical 3G of the cost of real-time monitor. Digital and graphic and Mau, intuitive and clear display, allow you to flow has been used at a glance. Maximum flow set a reminder of the intimate, exciting in your hands.

4. Web firewall capability enhancements, support protection of non-IE core browser

When you use non-IE core browser (such as Firefox, Google, sogou, traveling, Opera, Safari and other browser) access to the Web page containing fraud information, QQ computer Butler is the first time to remind you, beware of being taken.

When you access a Web page containing fraud information, computer housekeeping tips appear the lower right corner of the screen, for example:

Tags: Butler, computer, Official, release, version

Open and no one to take care of your computer shop

Thanks Taobao pictorial drop
News source: fried eggs
A website called OkTrends do an interesting statistical data, they will Twitter users and marriage site OkCupid has done a account that corresponds to the statistics, found: love and marriage in this Web site, users who use Twitter lovers, are shorter than the people that are not used.

A website called OkTrends do an interesting statistical data, they will Twitter users and marriage site OkCupid has done a account that corresponds to the statistics, found: love and marriage in this Web site, users who use Twitter lovers, are shorter than the people that are not used.

Figure, lateral are couples age, vertical is how many months of engagement. An interesting phenomenon is that the older exchanges more stability. The curve can be seen on, Twitter has been less than ordinary users.

It is said that their analysis of a total of 833,987 users.

OkCupid has another interesting statistic: join the tweet made by the person the higher frequency, then he or she is more likely to hand x. It is said that the statistical analysis of a total of 21,315 users.

Tags: computer

The world’s fastest computer “Tianhe first” connected to the Internet

Thanks Taobao pictorial drop
News source: fried eggs
A website called OkTrends do an interesting statistical data, they will Twitter users and marriage site OkCupid has done a account that corresponds to the statistics, found: love and marriage in this Web site, users who use Twitter lovers, are shorter than the people that are not used.

A website called OkTrends do an interesting statistical data, they will Twitter users and marriage site OkCupid has done a account that corresponds to the statistics, found: love and marriage in this Web site, users who use Twitter lovers, are shorter than the people that are not used.

Figure, lateral are couples age, vertical is how many months of engagement. An interesting phenomenon is that the older exchanges more stability. The curve can be seen on, Twitter has been less than ordinary users.

It is said that their analysis of a total of 833,987 users.

OkCupid has another interesting statistic: join the tweet made by the person the higher frequency, then he or she is more likely to hand x. It is said that the statistical analysis of a total of 21,315 users.

Tags: computer, connected, fastest, first, Internet, Tianhe, worlds

Dell officially released in China 5-inch tablet computer

On April 25, Dell announced that mainland China officially launched its first tablet products – Dell 5-inch Tablet (Dell M01M). Dell 5-inch tablet can provide users with mobile entertainment, social networking and mobile navigation services, matching the Android 2.2 operating system. Dell’s global Vice President, greater China, Mr Yang Chao, Chief Executive, said:
“Dell 5-inch Tablet is our first intelligent products to enter the Tablet market, milestone-like importance to Dell’s mobile business.

Dell application advantage for companies in product development and technology, the Dell 5 flat
Board will be configured with excellent performance, leading and innovative design for smartphones in China and inject new vitality into the Tablet market. Dell 5-inch tablet to launch simultaneously improve the Dell Mobile personal computing ecosystem as a whole, so that
Dell can better provide anytime, anywhere technology experience for consumers.

Dell 5-inch tablet with a 5-inch wide touch screen, combined with 1GHz Snapdragon processor and a built-in Webkit browser, using the Android platform, Android Market are available for many applications.

Dell 5-inch tablet with 9 hours of battery life, can continuously broadcast many movie or browse the different page content, built-in Wi-Fi and 3G devices. In addition, Dell 5-inch tablet with 5 million pixels
Fixed focus lens and dual LED fill light. In addition, Dell 5-inch tablet with GPS system and built-in map of mainland China, Hong Kong and Macau, may at any time for satellite navigation and positioning query.

Tags: 5inch, China, computer, officially, released, Tablet