云计算是什么意思?举一些例子
云计算是什么意思?举一些例子
what is meant by cloud computing? give some examples
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云计算是什么意思?举一些例子
what is meant by cloud computing? give some examples
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云计算是一个总体类别。在这个不断发展的市场中,您至少有 3 个不同的细分市场:
IaaS:基础设施即服务,例如 Amazon EC2
PaaS:平台即服务,例如 Google AppEngine
SaaS :软件即服务,例如 Salesforce
还有一个新兴类别:
DaaS:数据库即服务,例如 Amazon RDS、Microsoft SQL
简而言之,云计算涉及通过 WEB 提供的计算资源。当然,有些人会在某种程度上不同意这个定义,但它不可能都是错误的:-)
Cloud Computing is an overarching category. You've got at least 3 distinct segments in this evolving market:
IaaS: Infrastructure as a Service e.g. Amazon EC2
PaaS: Platform as a Service e.g. Google AppEngine
SaaS: Software as a Service e.g. Salesforce
There is an emergent category also:
DaaS: Database as a Service e.g. Amazon RDS, Microsoft SQL
In short, Cloud Computing relates to computing resources available through the WEB. Of course some folks will disagree to some extent with this definition but it can't be all wrong :-)
请参阅云技术的最佳概述是什么?。
See What are the best overviews for cloud technology?.
什么是云计算?
示例:
查看 Windows Azure 和 亚马逊 s3
What is cloud computing?
Examples :
Check out Windows Azure and Amazon s3
简而言之,云计算结合了 CPU 虚拟化、软件即服务和效用计算。
效用计算是指将计算服务视为一种效用,可以像提供水或天然气一样提供服务。易于打开、关闭或增加流量。这是通过有效的 CPU 虚拟化以及以零接触方式管理这些虚拟 CPU 的工具实现的。除此之外,软件即服务,你就拥有了云计算。有些服务非常简单,例如 Amazon S3 存储,而其他服务则更复杂,例如 salesforce.com CRM。
Simply put, cloud computing combines CPU virtualisation, software as a service, and utility computing.
Utility computing refers to treating computing services as a utility that can be delivered like you would deliver water or gas. Easy to turn on, turn off, or increase the flow. This was enabled by effective CPU virtualisation, and the tools to manage these virtual CPUs in a zero-touch manner. Add on top of that, software as a service, and you have cloud computing. Some services are very barebones such as Amazon S3 storage, and others are more complex like salesforce.com CRM.