میگن سنگ بزرگ علامت نزدنه! ولی اون آدم به این فکر نکرده که به هر حال سنگ بزرگ برداشتنش هم مشکل تره و ممکنه بیشتر طول بکشه!
کتابه بود که قرار بود بزارم واسه ترجمه؟ میخوایم شروعش کنیم.
نویسندگان : Anthony T. Velte و Toby J. Velte, Ph.D. و Robert Elsenpeter
مقدمه رو جا میزاریم و از بحث اصلی میریم جلو (اگه کسی خواست میتونه کتابو دانلود کنه) :
Disambiguation—Just What Is Cloud Computing?
Cloud computing gets its name as a metaphor for the Internet. Typically, the Internet is represented in network diagrams as a cloud, as shown in Figure 1-1. The cloud icon represents “all that other stuff” that makes the network work. It’s kind of like “etc.” for the rest of the solution map. It also typically means an area of the diagram or solution that is someone else’s concern, so why diagram it all out? It’s probably this notion that is most applicable to the cloud computing concept.
NOTE Applications run on hosted servers as a service. We’ll define that term later in this chapter,and discuss the different types of “as a service” applications that are prevalent.
Cloud computing promises to cut operational and capital costs and, more importantly,let IT departments focus on strategic projects instead of keeping the datacenter running.
What Works
But there’s more going on under the hood than to simply equate cloud computing to the Internet. In essence, cloud computing is a construct that allows you to access applications that actually reside at a location other than your computer or other Internet-connected device; most often, this will be a distant datacenter. There are many benefits to this. For instance, think about the last time you bought Microsoft Word and installed it on your organization’s computers. Either you ran around with a CD- or DVD-ROM and installed it on all the computers, or you set up your software distribution servers to automatically install the application on your machines. And every time Microsoft issued a service pack, you had to go around and install that pack, or you had to set up your software distribution servers to distribute it. Oh, and don’t forget the cost of all the licenses. Pete down the hall probably uses Word once a month, but his license cost just as much as everyone else’s.
The beauty of cloud computing, as shown in Figure 1-2, is that another company hosts your application (or suite of applications, for that matter). This means that they handle the costs of servers, they manage the software updates, and—depending on how you craft your contract—you pay less for the service.
Don’t forget the equipment that you won’t need to buy—which will result in fewer capital expenditures—thereby causing the CFO to actually smile when she sees you. By having someone else host the applications, you need not buy the servers nor pay for the electricity to power and cool them.
It’s also convenient for telecommuters and traveling remote workers, who can simply log in and use their applications wherever they are
دو تا نکته :
۱.ترجیحا کتابو دانلود کنین که مشکلی پیش نیاد.
۲.فایل پی دی اف بود و نتونستم عکس ها رو در بیارم ازش،ساری.
