Cloud technology is also basically called cloud computing (cloud computing), which is a type of distributed computing technology. Its most basic concept is to automatically split a huge computing processing program into countless smaller subprograms through the network. After searching, calculating and analyzing, a huge system composed of multiple servers returns the processing results to users. Through this technology, network service providers can achieve the processing of tens of millions or even billions of information within seconds, and achieve the same powerful and efficient network services as "supercomputers".
The simplest cloud computing technology is already everywhere in network services, such as search engines, network mailboxes, etc., users can get a lot of information as long as they input simple commands.
In the future, mobile devices such as mobile phones and GPS can develop more application services through cloud computing technology.
Further cloud computing not only performs data search and analysis functions, but in the future, such as analysis of DNA structure, sequencing of gene maps, analysis of cancer cells, etc., can be easily achieved through this technology.
What is cloud computing?
"Cloud computing" is a fashionable concept, it is neither a technology nor a theory. According to the most common and ambitious explanation of cloud computing, its goal is to get everything on the network. The cloud is the network. The network is the computer. When so many organizations are distributed all over the country and around the world, when so many people are moving or working at home, why not hand over some of your data and processing needs to third parties, using mobile phones, mobile computers Or do other devices access everything on the entire network? Your data will be password protected, just like on the local network and can be encrypted on the entire network. This processing task can be completed by a third-party virtualized computer farm, maximizing the ability to use processors, and greatly reducing the carbon emissions of institutions and the wider community.
Cloud computing is an area implemented using technologies related to growing Linux, high-performance computing, and virtualization. For companies such as IBM and Hewlett-Packard, the recovery of mainframe computers and the development of blade servers (both thanks to the use of Linux) and the efficiency of data centers in terms of capacity, data and processor utilization have made cloud computing Become reality.
Magic carpet
This is a fascinating idea. Computing in the cloud or on the entire network can bring many theoretical and practical advantages. Data spent in the data center can be used for other departments of the enterprise. The funds must be used not only for hardware, but also for system maintenance, standby time, unused processing and storage capacity, security concerns, energy bills, upgrades, and personnel expenses. Even every desktop computer on the desk of every employee of this organization will have a disproportionate impact on the cash flow of this organization, not only the initial hardware investment, but also software license expenses and hardware upgrades to adapt to software requirements Expenses. It is also difficult to track data randomly stored on a computer within the organization, and such data may disappear from the company's knowledge base forever. Each such desktop computer consumes a certain percentage of energy.
Village in the cloud
Needless to say, there is still a gap between reality and this larger goal. However, there are some practical examples in the real world. The bank has established a global network for identifying credit cards. In this network, information must be shared, and security is guaranteed. The airline booking system operates in the same way, using the network to access the central storage system. Most organizations of any size with wide area networks can access information on the move. Cloud computing takes this application to another level.
The most famous example of cloud computing currently in use is Amazon's EC2 grid. The New York Times recently rented this grid to create a PDF file library with a data capacity of 4TB, containing 11 million articles published by the New York Times from 1851 to 1920. According to Derek Gottfrid of The New York Times, he used 100 Amazon EC2 instances and a Hadoop application to compile all 11 million articles in less than 24 hours and generated another 1.5TB For data, a total of US $ 240 was used. Even if cloud computing is not used as a mainstream service application, it is a viable option to provide this rare processing power.
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