On the development of cloud computing and its application in vocational education

The driving force of cloud computing development

With the development of the information society, 4 contradictions are gradually embodied in the management of the message:

1. Explosive growth of traffic volume. With the development of 3G and mobile Internet, the traffic volume increased dozens of times times. According to statistics, in 2006, the world produced 161EB of data, printed in a book is 10 times times the distance between the Earth and the Sun, 2007, the global production of 280EB data, the world's average 45G per person, and 5,000 years of human history, the text record only 5EB. Information explosion, the production of a large number of process data needs to be stored, traditional technology is difficult to meet the above PB-level data storage requirements.

2, operators fine management. Operators to the network, users and business operations to the fine direction of development, business data needs to be centralized and need to be processed and mining, traditional ways in the network bandwidth, processing capacity of the obstacles.

3, low carbon economy, improve the utilization of hardware. Current network equipment in accordance with the business peak for exclusive resource allocation, hardware utilization only for percent, operation and maintenance of high cost, energy consumption, universal PC technology rapid development, and low-cost.

4. Rapid deployment of innovative business. Internet business, telecommunications business rapid innovation, business deployment and development of the user's time window will be greatly shortened; How to quickly and flexibly allocate resources for innovative business will be the key to business success.

In view of these conflicting information management requirements, some software development companies design and propose solutions, such as: a large number of applications of distributed parallel processing technology to achieve massive data computing and storage, virtualization technology to use a lot of, improve hardware usage, reduce costs, and achieve rapid business deployment. Cloud computing has also caused many IT companies to make technological changes, seize the market, Internet service providers are the pioneers of cloud computing: Advanced technology and innovative business model leaders, based on cloud computing to provide low-cost mass information processing services (Google, Amazon, Salesforce.com, etc.). Telecom operators use cloud computing to solve real-world problems by introducing cloud computing to improve the capabilities of telecommunications networks (massive computing and storage) and lower costs. Traditional IT giants have been forced to transform into cloud computing, introducing cloud computing into the dominant offerings and solutions (IBM, Microsoft, HP, etc.). Network providers are taking advantage of technological innovation to enter the Cloud computing field (Cisco, etc.) using traditional networks, servers, and huge software advantages. According to current IT technology, the cost per G information processing costs 5 of dollars, unable to support a huge amount of information growth, cloud computing in such a context; For example: Google uses cloud computing to achieve 25 cents per g cost.

Second, the concept of cloud computing

Cloud computing is a business computing model that distributes computing tasks across a pool of computer-enabled resources, enabling users to gain computing power, storage space, and information services on demand. Cloud Computing (cloudcomputing) is Grid computing (gridcomputing), distributed Computing (distributedcomputing), Parallel Computing (parallelcomputing), Utility Computing (utilitycomputing), networked Storage (networkstoragetechnologies), Virtualization (virtualization), Load balance (loadbalance) and other traditional computer and network technology development and integration of products.

Third, the characteristics of cloud computing

1. Super scale. "Cloud" has a considerable scale, Google Cloud computing already has more than 1 million servers, Amazon, IBM, Microsoft and Yahoo and other companies "cloud" has hundreds of thousands of servers. The cloud gives users unprecedented computing power.

2. Virtualization. Cloud computing enables users to obtain services at any location, using a variety of terminals.

3. High reliability. The cloud uses such measures as data replication fault tolerance and computing node isomorphism to ensure high reliability of services, and using cloud computing is more reliable than using a local computer.

4. Universality. Cloud computing is not specific to the application, in the "cloud" under the support of the structure of the ever-changing applications, the same "cloud" can support the operation of different applications.

5. High scalability. The scale of the cloud can be scaled dynamically to meet the needs of application and user-scale growth.

6, on-demand services. The cloud is a huge pool of resources that users buy on demand, charging like running water, electricity and gas.

7. Extremely inexpensive. The special fault-tolerant measures of the cloud make it possible to use extremely inexpensive nodes to form the cloud; Cloud's automated management lowers the cost of data center management, and the commonality and versatility of the cloud greatly increases the utilization of resources; "cloud" facilities can be built in areas with abundant power resources, thus dramatically reducing energy costs. As a result, the cloud has an unprecedented performance-price ratio.

(Responsible editor: The good of the Legacy)