Introduction: What is cloud computing?

Cloud theory is a powerful tool for natural conversion between the qualitative value of a concept and the quantitative value of a number.

 

Based on the cloud theory, this paper proposes a cloud computing method for implementing conceptual computing (also called simplified computing. The cloud model and uncertainty reasoning are outlined. The logic description of computing is given, and the computing process is abstracted into a reasoning process. The cloud computing process is given using machine learning, the cloud computing process is presented using the method of uncertainty reasoning. the system implementation of cloud computing is briefly described.

 

With the increasing popularity of networks, services such as "Network Storage" are becoming increasingly popular. With a large number of users, developers in the network service industry will naturally not miss this large market. A few days ago, Microsoft launched Windows Live SkyDrive, which has been fully tested on the Internet. Although its capacity is only 500 mb, it is free of charge and the number of users is very large. Google is not an ordinary person. SkyDrive launched its ultra-high-capacity network storage solution just after its debut. However, the charges still need to be discussed. In addition, the. Mac platform developed by Apple has targeted the "Network Storage" cake and is ready to join the "war" at any time ".

 

Recently, major websites such as arstechnica have published an article titled Google, Microsoft and Apple building online storage havens: You win, which has aroused heated discussions among netizens around the world, the "fans" of Microsoft, Google, and Apple talked about each other in various forums and strongly supported their respective "camps". At that time, the three strong online storage websites were becoming increasingly prominent.

 

Microsoft's SkyDrive is purely a free route, but it is not ruled out that it is only a "bait" of Microsoft. After all, it will not fall in the sky. Google is directly linked to the dollar. If you want to use our services, you can, and are very welcome, but the size of the capacity is measured in the dollar. Upgrading from 2.8 GB to 500 GB + 6 GB may be acceptable, but it is a luxury to buy GB space for $, moreover, the scalability of services only limited to Google itself is too small. From Apple. the Mac platform has already had network storage services, but now the capacity has been upgraded from 1 GB to 10 Gb, which is also $99. the Mac platform uses the annual fee, which does not increase the price.

 

Competition will inevitably lead to price reduction and service quality improvement. We believe this is what common users want to see, and the era of network storage will also come, we hope that the network storage developed from cloud computing (cloud computing) will bring us more surprises, just as Im instant messaging software is currently.

 

To have a deep understanding of cloud computing, you must take into account the following five aspects:

 

(1) Principle:
Cloud computing is the development of distributed processing (Distributed Computing), parallel processing (Parallel Computing), and grid computing, or the commercial implementation of these computer science concepts.
The basic principle of cloud computing is that by distributing computing on a large number of Distributed Computers, rather than local computers or remote servers, enterprise data centers will run more like the Internet. This allows enterprises to switch resources to the desired applications and access computers and storage systems as needed.
This is a revolutionary action. For example, it is like switching from an old single generator model to a centralized power supply model for power plants. It means that the computing power can also be circulated as a commodity, just like gas, water, electricity, convenient access, and low cost. The biggest difference is that it is transmitted over the Internet.
The cloud computing blueprint is ready: in the future, we only need a notebook or a mobile phone to implement what we need through network services, and even tasks such as super computing. From this perspective, the end user is the real owner of cloud computing.
Cloud computing applications include the idea of combining power for each of the members.

 

(2) "Cloud" Era
At present, PC is still our core tool in our daily work and life-we use PCs to process documents and store materials, and share information with others through e-mails or USB flash drives. If the PC hard disk breaks down, we will be helpless due to data loss.
In the "cloud computing" era, "Cloud" will do storage and computing for us. "Cloud" is a computer group. Each group includes hundreds of thousands or even millions of computers. The benefit of "cloud" is that its computers can be updated at any time to ensure the "cloud" will never last forever. Google has several such "Clouds", and other IT giants, such as Microsoft, Yahoo, and Amazon, also have or are building such "Clouds ".
At that time, we only need a computer that can access the Internet and do not need to care about the storage or computing on which "Cloud" occurs. However, if necessary, we can use any device anywhere, such as computers and mobile phones. We no longer have to worry about data loss.

　　
(3) Several Forms of cloud computing
1. SaaS (software as a service)
This type of cloud computing transmits programs to thousands of users through a browser. In the eyes of users, this will save the cost of server and software authorization; from the supplier's point of view, it is enough to maintain only one program, which can reduce costs. Salesforce.com is the most famous company for such services so far. SAAS is commonly used in human resource management programs and ERP. Google Apps and zoho office are similar services.
2. Utility computing)
This idea has been around for a long time, but it has not been around until recently for Amazon.com, sun, IBM, and other companies that provide storage services and virtual servers. This cloud computing creates a virtual data center for the IT industry so that it can combine memory, I/O devices, storage and computing capabilities into a virtual resource pool to provide services for the entire network.
3. Network Services
Close relationships with SaaS allow network service providers to provide APIs for developers to develop more Internet-based applications, rather than standalone programs.
4. Platform as a service
Another type of SAAS is that cloud computing provides the development environment as a service. You can use middlemen devices to develop your own programs and transmit them to users through the Internet and their servers.
5. MSP (Management Service Provider)
One of the oldest cloud computing applications. This type of application is intended for the IT industry rather than end users. It is often used for mail virus scanning and program monitoring.
6. Commercial Service Platform
SaaS and MSP hybrid applications. This type of cloud computing provides a platform for interaction between users and providers. For example, the user's personal expenditure management system can manage the expenses of users and coordinate the various services they subscribe to based on their settings.
7. Internet Integration
Integrate companies that provide similar services on the Internet so that users can conveniently compare and select their own service providers.

(4) The New York Times: What Does Cloud computing mean?

 

The cloud computing statement is becoming popular. Gartner's senior analyst benpring commented: "It is becoming a popular term ." However, the problem is that everyone may have different understandings of cloud computing. As a metaphor for the Internet, "Cloud" is easy to understand. However, once associated with "computing", its meaning expands and begins to blur. Some analysts and companies define cloud computing only as an upgraded version of computing-basically a large number of virtual servers provided on the Internet. Others define cloud computing more broadly. They think that anything that users consume outside of firewall protection is in the "Cloud.

Cloud computing is a concern that after people think about what the IT industry needs, people need to find a way to avoid new investment, new manpower and new software increase Internet capabilities and capacity. Cloud computing provides such a possibility.
Today, cloud computing is in its infancy. Large and small companies provide a wide range of cloud computing services, from software applications to network storage to mail filtering. Some of these companies are basic equipment providers, while others are SaaS (software as a service) providers such as salesforce.com. Today, we mainly implement personal services based on the Internet, but the aggregation and integration of cloud computing is being produced.

(5) cheap "Cloud" devices

Since the arrival of the "cloud Era", almost all data, including application software, is stored in the "Cloud", and the functions of terminals will degrade, the hardware industry and traditional software industry revolution will be promoted. In the future, Google will call it a "Cloud" device. It is characterized by having a complete functional browser and installing a simple operating system, including PC, mobile phone, MP3, CD on the car, and even watches, enter the user name and password to obtain your application from the 'yun' end, which is easier than on the terminal." Kai-Fu Li described. As both storage and computing capabilities are in the "Cloud", the future storage and computing capabilities of the "Cloud" devices will be greatly weakened.

According to Dr. Lee, the advantages of cloud devices are cheap, open, and simple. It is understood that because the mobile phone operating system is not open, Google specifically designed an Android operating system for "cloud computing. "Android is designed for the cloud era ." Kai-fu Lee said that android is a complete operating system with a fully functional browser. Unlike other operating systems, Android is an open standard "Cloud" device, it can be provided to users for free, making mobile phones cheaper. According to Google's ideas, after the "cloud computing" Internet age came, almost all data and computing capabilities were moved to the network, making cheap pcs and simple operating systems a choice, the hardware and software revolution has begun.

In the PC era, what you see is the speed competition model of the hardware industry determined by Moore's Law: the Wintel architecture complements each other. If you build a larger operating system, I will make a faster CPU, as a result, the hard disk and memory industries continue to upgrade. However, Kai-fu Lee believes that the value of this model cannot continue after the arrival of the "cloud era.

"In the Internet era, our main activities are all in browsers, and the performance requirements for PCs are not too high. Therefore, the hardware industry needs a new model ." Kai-fu Lee believes that in the "cloud Era", a simple and open Linux operating system, a low-speed CPU, M memory, less than 10 Gb hard disk can support your daily applications, mobile phones, cdns on cars, MP3, and even watches ...... Being able to access the Internet, open, and cheap will be synonymous with "Cloud" devices.
"A chip maker certainly hopes to be the fastest and most expensive, but it is not a future business trend on the desktop ." Said Kai-Fu Li.