计算机英语论文

Cloud Computing

Cloud computing is a service provided by way of a dynamic scalable virtualized computing model resources over the Internet. This mode offers available , convenient , on-demand network access into a shared pool of computing resources can be configured ( resources, including networks, servers, storage , applications, services ) , these resources can be quickly provided , just put it less administration , or with service providers rarely interact .

It is calculated by the distribution of the large number of distributed computers, rather than the local computer or a remote server, running enterprise data centers and the Internet will be more similar. This allows companies to switch to the application of the resources required , according to demand access to a computer and storage systems. Like a single generator from the old model to a centralized power plant model . It means that computing power can also be used as a tradable commodity , like gas, water and electricity , as access to convenient , inexpensive. The biggest difference is that it is transmitted through the Internet.

Cloud computing service characteristics and nature of clouds, water circulation on the Internet has a certain similarity , so the cloud is a very apt analogy.

Cloud computing proposed for the development of computers

played a role in making the network more widely based . In my opinion cloud computing has four significant advantages : Cloud computing provides the most reliable and secure data storage center , users do not have to worry about data loss, virus attacks and other problems ; cloud computing client devices require a minimum , is also the most convenience ; cloud computing data and applications can be easily shared between different devices ; cloud computing as we use the network provides almost infinite number of possibilities.

But on the other hand there are also disadvantages two aspects : first, it is safe , because the cloud computing power and data in the cloud , how to ensure the security of customer data is a relatively important . Security has two aspects, one is the data is not lost , the general service providers will have the ability to solve backup , but also occurs occasionally lost ; Another is that your data will not leak , although this will take some measures to service providers , not to outsiders , such as hacker attacks to get data , but the problem is the service provider 's internal staff is great . The second is the network delay or interruption. Cloud computing generally remote access via the network, although it is now improving speed quickly, and LAN but compared to the speed or delays , and if once a network outage , the service will not be able to access .