Experts describe cloud computing: The network is the most powerful computer

Last night, in the 99th Xinmin Science Café, Professor Zhang, associate dean of the Computer Institute of Fudan University and Dr. Yiu Jifeng, chief architect of the Shanghai Supercomputing Center, described in a popular and humorous language the disruptive revolution that cloud computing would bring. "Build a House" or "Rent a house" What is cloud computing? The definition given by the two experts is that cloud computing is an internet-based computing service model that includes the application services on the Internet and the hardware and software facilities that provide these services in the data center. "The concept of cloud computing is similar to the grid. Both have a variety of access equipment, can be used anytime, on-demand. Zhang explains. Power plants transfer electricity to the grid, and users do not have to generate electricity by themselves, just from the grid.　　With cloud computing, users do not need to complete computing and storage work on the local computer, and get the corresponding services from the Internet. Instead of building their own houses, decorating themselves, and buying everything they own, it's better to rent a house, find a decoration company, and use the facilities in the community. Cloud Computing provides the latter service pattern.　　"Easy management, flexibility, high resource utilization, high reliability, low cost, and security are all advantages of cloud computing," Zhang analysis said. Yiu Jifeng pointed out that the so-called "cloud" in the cloud, the source is actually the IT architects used to use the cloud to express the ubiquitous Internet, there is no "foggy" the meaning of the mysterious. "Cloud computing satisfies our expectations of a future information society: anytime, anywhere, convenient, inexpensive, fast access to information, processing of information, exchange of information and display of information, so that information is everywhere, omnipotent, no need." "Private Cloud" and "public cloud" cloud computing is really that capable? Is it another concept hype? Can it have many users in the future? Will it be a problem? The public questioned the scene. Yiu Jifeng that cloud computing is not so much a new technology as an innovative operation or business model that will subvert existing patterns in many areas. The cloud can be divided into private and public clouds. Industries like banks are less likely to use public clouds, and what the cloud does to them is the idea of using the cloud to reconstruct information systems and reduce the cost of information. "The new staff no longer send a computer, but a small client, with a wire plug can work, and later need to update just the screen." "We are a cloud user, so when does cloud computing come into our lives?" This is one of the most concerned people at the scene last night. "In fact, most of us are already users of cloud computing," he said. As long as you use the search engine, is the cloud computing users.　　Yiu Jifeng answered. More areas are changing because of cloud computing. According to Yiu Jifeng, foreign online gaming service providers, plans to launch a new online model this June: Users can no longer play games and spend money to improve the configuration of the computer.　　You need the graphics card, CPU, software installed on its server, you only pay the monthly rent, even the net can play those who originally need the most cattle graphics card can play the game. "Of course, there are still some problems to be solved in the cloud computing field. Now we deal with viruses and do firewalls to intercept them. In cloud computing, we can also use this method to stop attacks outside the cloud. But if both attack and defense are in the cloud, is the cloud's neighbors, how to guard against? Zhang Frankly, these are under study. Reporter Dong Chunlei