Computer

MapReduce is a distributed programming model developed by Google for mass data processing in large-scale groups. It implements two functions: map applies a function to all members of the collection, and then returns a result set based on this processing. and reduce is the classification and generalization of result sets that are processed in parallel by multiple threads, processes, or stand-alone systems from two or more maps. The Map () and Reduce () two functions may run in parallel, even if not in the same system ...

Introduction U disk is the abbreviation of USB disk, and USB drive is just a U disk homophonic name. U disk is a kind of flash memory, so also called flash disk. The biggest feature is: small and easy to carry, large storage capacity, cheap. is one of the removable storage devices. The general U disk capacity of 128M, 256M, 512M, 1G, 2G, 4G, 8G, and so on, the most common in the price of 1G, for example, 20 yuan can be bought. 2G Kingston only 35 yuan. U disk capacity has been greatly improved, such as: 4G, 8g,16g u disk. It is convenient to carry, belongs to the mobile storage device ...

Xinhua Beijing, December 16, according to the U.S. Chinese network reported that with the use of robots in all walks of life more widely, the technology future to replace the artificial worry has spread among young Americans, the employment of young workers increasingly threatening. Seattle a hospital medical staff to treat patients, a robot with doctors for patients dispensing; a Silicon Valley Hotel robot will send clean towels and other items to guest rooms, and a special software computer to write news for American media. Fears that technology could replace workers have long been reported, but there are many indications that this may be a real difference. ...

The information gathered from the cheap phones can be analyzed to help scientists understand the day-to-day behavior and travel of people, and even to understand the spread of disease. An epidemiologist at Harvard Public Health School's office, Caroline Barclay, pointing to a telephone signal tower on the map of Kenya on the computer screen, the data collected from the cell phone towers played a key role in the fight against malaria. While studying the data, she and her colleagues found that people were sending text messages and dials near the towers of the Kericho.

Reading a lifelong "programmer": What are your childhood dreams and hobbies? How do these hobbies affect your future career development? Xiaohu: To be frank, I didn't have any particular obsession when I was a kid. Parents did not "force" me to all kinds of interest classes, but gave me a very relaxed and free growth environment. Now in retrospect, the habits of childhood benefit lifelong is to love reading. A lot of reading not only cultivate my curiosity, broaden the knowledge, but also for the future work of rapid reading ability to lay a solid foundation. When I was a child, I read books.

Hacker attacks more powerful wisdom security network in the past year in the commercial computing system, the number of loopholes in the amount of, although similar to previous years, however, hackers targeted these vulnerabilities to take the frequency of locking attacks is increasing, that is, not patched or updated system vulnerabilities, is bound to expose the safety of enterprises in high-risk groups. Nearly half of all security vulnerabilities are not core systems, but are most likely to be in Web application, or plug-in portal interactive services sites, but these vulnerabilities pose a great threat to the overall security of the enterprise. Network attack packs and botnets, which can be easily purchased on the web and used to attack businesses ...

"Editor's note" At present, the major technology giants, including Google, Microsoft and so on are vigorously developing in-depth learning technology, through various ways to dig deep learning talent, Mark Zuckerberg appointed Yann LeCun as director of the Facebook Artificial Intelligence Laboratory. These High-tech companies are exploring a special form of depth learning-convolution neural networks, which lecun more than others for visualizing convolution neural networks. The following is the original: Mark Zuckerberg carefully selected in-depth learning expert Yann LeCun as Faceboo ...

This time last year, we are talking about the mobile phone is about to enter the four-core era, and this year, the eight nuclear has come quietly. At the recent 2013 US consumer Electronics Show, Samsung unveiled the Exynos 5 octa eight core mobile processor. The release of the eight-core mobile processor will no doubt lead to another escalation of the phone processor kernel war, which may have been jianzaixianshang. But in the case of short Neinian of battery capacity, it will be hard to sustain a nuclear war. 　　Perhaps the eight-core is just a publicity stunt. What is eight core?

class= "Post_content" itemprop= "Articlebody" > Gbps: This is the network transmission rate that LI-FI can achieve, is more than 10 times times of the existing WiFi network. According to Spectrum, a team of researchers at Oxford University has designed a LI-FI system to achieve this level of network speed ... Li-fi Chinese is called "Light Internet Technology", it does not need Wi ...

class= "Post_content" itemprop= "Articlebody" > Do you remember how you felt when you first contacted the computer and saw the computer? Is it the same as the Apes in the 2001 space Odyssey, after touching the alien technology black stone, suddenly generating human consciousness and evolving the sense of using tools? Now a YouTube user, the Fine brothers, made a merry ...

class= "Post_content" itemprop= "Articlebody" > Razer Blade has been released for a long time, this is finally listed (the exclusive sale of Beijing East). Bring up the game notebook computer, our old impression is big. But the Blade is unique, the fuselage ultra-thin only 1.68cm thick, the first look at the past you will think that is extremely extreme ... So thin the fuselage into a strong configuration, the use of ...

I want to tell you about my entrepreneurial experience. May be in the eyes of many people this is not a start-up, but is a dick Silk's bitter forced life just. In my opinion, as long as not to work for others, by their own decision-making career development direction of things called entrepreneurship. I came out of the technical school. and learning computer. The technical school comes out the student's ability and the literature hires, everybody understands. So I started to get out of trouble before I graduated. I worked in a factory for only 3 months. No more work was done. I used to feel inferior because I have hemophilia. I don't know which day I will go to the hospital. The feeling is not good description ...

20 years time, internet cafes from hing to decline, as if roller coaster, now-operators began to explore the integrated leisure place operation mode "go, Internet cafes go!" "Believe in such dialogues, whenever, you are familiar with." In the middle of the 90 's, internet cafes smashed into taizhou like dynamite, allowing many young people in Taizhou to come into contact with the Internet. After 10 years, the Internet Café industry in Taizhou rapid development, it makes many young people experience unprecedented fresh feeling, also let many Internet café operators Amoy to the "first bucket of gold." But the rapid development of the Internet to achieve the net ...

Abstract: A man and a woman married, Gaofu old Park have a sense of property protection, forced the daughter-in-law signed a prenuptial agreement. The result only wrote one sentence: All Transformers are mine! I always thought this is a joke, until I know that my friend is really a man and a woman married, Gaofu old Park have property protection consciousness, forced the daughter-in-law signed a prenuptial agreement. The result only wrote one sentence: All Transformers are mine! I used to think it was a joke until I knew there was someone in my friend who was so determined by the fact that my girlfriend broke her own robot model.

Abstract: Editor's note: This article from the Nutshell MOOC College product manager Huang. Huang long-term attention to the Internet education, has been in the watercress as a user to establish a public class classroom station, after the public class NetEase, now the shell Nets Mooc College as product manager. His last Post editor's note: This article comes from the Shell Mooc College product manager Huang. Huang long-term attention to the Internet education, has been in the watercress to establish a "public class classroom" station, after the public class NetEase, now the shell Nets Mooc College as product manager. His last article was "MOOC certificate can change ...

Summary: It is equally important to decide what not to do and decide what to do. Steve Jobs, 1997 Tren Griffin, at the beginning of his own post with Jobs, told his readers that the discussion in this article would be limited to what Steve Jobs gave him about business, and that it was just as important to decide what not to do and what to decide to do. -Jobs, 1997 Tren Griffin, at the beginning of his own post with Jobs, told the reader that the discussion in this article would be limited to what Steve Jobs had brought to his business.

Absrtact: In 1971, physicist Leon Chua proposed the concept of a fourth integrated circuit basic component element. He believed that, due to the symmetry, the new components would be created and added to the existing three kinds of element resistors, capacitors and sensors. When 1971, physicist Leon Chua presented the concept of a fourth integrated circuit basic component element. He believes that because of symmetry, new components will be created and added to the existing three constituent elements-resistors, capacitors and sensors. At that time ...

Absrtact: At last month's press conference, Apple said its latest computer operating system OS X Yosemite will have a beta version for all users. You can apply for a test qualification on this page with an Apple ID, and Apple will tell you that it will be available at Yosemite's press conference last month, and Apple has said that its latest computer operating system OS X Yosemite will have a beta version for all users. You can apply for test qualification on this page with Apple ID ...

Absrtact: Behind the glossy internet, the virus group behind the huge virus industry chain is emerging. Recently, the "first financial daily" exclusive learned that in the last year caused the industry's attention to the top ten domestic virus group, the second largest virus group HYC case has been Hubei glossy internet behind the huge "virus" industry chain behind the virus group gradually surfaced. Recently, the "first financial daily" exclusive learned that the industry has caused concern last year in the domestic "Top ten virus Group" in the second largest virus group HYC case has been basically identified by Hubei police, the procuratorial organs will timing five of the case ...

Abstract: According to foreign media reports, Science and technology blog BusinessInsider author Oventomas (Owen Thomas) in Monday, said that because of the future decades of computing equipment market competition, Apple, Google (micro-bo), Microsoft and Amazon, the four technology giants will be in the near future according to foreign media reports , businessinsider author Owen Thomas, a technology blogger, wrote in Monday that because of the scramble for computing equipment markets in the coming decades, Apple, Google (Weibo), micro ...