Computer capacity continues to improve

640K capacity enough for users. This is what Bill Gates spoke about as early as 1989, "The Past, Present and Future of Computer Science." At that time, all the programs took up little space and a 100MB hard drive was like a city. Internet is still the legendary mouse, hypertext agreement has just been made. Their widespread use began only in the latter six years.

Today, Baidu can retrieve this information, a common white-collar work required to provide the standard computer is: low-end Core Duo / 1GB memory / 250GB hard drive, but soon, megabyte hard drive is about to be used by the public .

Behind the rapid hardware configuration is the rapid growth of data on the Internet - it is simply challenging the limits of human imagination, mass data as a concept was proposed, the unit in GB dollars. And now this is just a small site data unit. If you can not imagine how one day your PC will become like 1000 times or more today with the data available on the Internet, or what form the hardware will evolve into, or if your PC does not have to Massive data calculation?

Cloud computing gives another possibility

Cloud computing is a new business computing model. Using high-speed Internet transmission capabilities, the data processing process from the personal computer or server to move to the Internet on the computer cluster. These computers are very common, industry-standard servers, managed by a large data center that allocates computing resources to the needs of their customers to deliver the same performance as supercomputers.

The "cloud" is not only a metaphor for those meshed computers, but also means that the calculation of the data is hidden, and the server "sculpts" the one you need from the cloud according to your needs. It is a very romantic analogy.

High performance and low input PK security risk warning

Cloud computing is seen by its fans as a "revolutionary computational model," as it makes possible the free flow of supercomputing capabilities over the Internet. Enterprises and individuals do not have to invest in expensive hardware acquisition costs, just buy the lease through the Internet computing power, "put your computer as an access port, everything to the Internet."

Imagine a mobile terminal that is capable of more robust processing when its computing power is not limited by local hardware, smaller size, lighter weight. We can still run the most demanding online games in a thin, light-weight notebook, and edit and process just-taken photos on your phone by visiting Photoshop Online.

Even more attractive is that enterprises can invest very high computing power at very low cost, eliminating the need to invest in expensive hardware and equipment, and afford frequent maintenance and upgrades. For example, Goosipy.com, a real estate website in the United States, wants to set up a database to calculate the data of 670,000 households buying and selling real estate over 12 years in order to provide consumers with better advice. If they do it for themselves, it is initially estimated that it will take six months and millions of dollars. And finally, they leased Amazon Computer's Flexible Computing Cloud service, which took only three weeks to complete using Amazon's powerful data analytics, for less than $ 50,000 - the wonder of cloud computing One of the points, that is, on-demand computing can give full play to the performance of large-scale computer clusters. If you just use 5% of the resources, you only have to pay a 5% price instead of paying 100% of the equipment as you did before.

While the benefits of using cloud computing services sound so appealing, more are embracing the wait-and-see attitude. This caution comes from the consideration of safety issues. Cloud computing means that data is transferred to machines outside the reach of users' sovereignty, which is the cloud computing service provider's hands. So, how to ensure the safety of these data? How can we believe that service providers will not betray the data to the commercial competitors? Such fears have never stopped. In early 2007, when Google launched the Google Apps service, a free simplified office package that stores and processes data on the Internet, many analysts questioned: How can we be certain that data is safe for Google?

Service providers explained that in the process of cloud computing data security issues, "do not have to worry about." Because the data is broken down into a scattered state on the cluster, even the server does not understand them, it is very difficult to decipher and restore the data. As a key enabler of cloud computing, IBM, which released the Blue Cloud initiative, also said that in 2008, more relevant processes and standards will be put in place to ensure customers' data security.

However, this still can not completely dispel people's misgivings. After all, even in the age of information, even data leaks are dangerous. As long as there is a possibility that the data will be compromised, cloud computing services will be shut out by customers with high security requirements.

In other words, when our computers are really just the entrance to Internet services, as the processing of data gets farther and farther away from us, the demands on the service provider "Do not Be evil" are getting higher and higher, and we really Can we trust the power of ethical standards? Security issues will always be a barrier to cloud computing promotion and development.