- Cloud computing is basically

- 雲計算基本上是

the leveraging of pools of computing resources

利用計算資源池

to minimize costs and maximize compute efficiency.

以使成本最小化和計算效率最大化。

Here's why cloud computing

以下是雲計算的原因

is such a game-changer in business.

是商業中的一個改變遊戲規則的因素。

In the past, hosting applications and data

在過去，託管應用程序和數據

at an enterprise level meant renting

在企業層面上，意味著租借

or building data center space

或建設數據中心空間

to house the millions of dollars worth of hardware

以容納價值數百萬美元的硬件

and software assets you needed to buy.

和你需要購買的軟件資產。

Now we have affordable and powerful on-demand options

現在，我們有了負擔得起且功能強大的按需選擇

in the form of cloud computing platforms.

以雲計算平臺的形式。

Cloud platforms provide the ability

雲平臺提供的能力

to leverage remote systems on-demand over the open internet,

在開放的互聯網上按需利用遠程系統。

the ability to pay for only the resources that you use,

只為你使用的資源付費的能力。

and the ability to scale up and scale back as needed.

以及根據需要擴大和縮減規模的能力。

Cloud computing might seem new,

雲計算可能看起來很新。

but it's really an evolution of two rising technologies,

但它實際上是兩項新興技術的演變。

timesharing and distributed computing.

時間共享和分佈式計算。

Timesharing allows users

時間共享允許用戶

to share computing resources of a large system,

以共享大型系統的計算資源。

and distributed computing decentralizes computing resources

和分佈式計算將計算資源分散化

and shares the workload among many computers

並在許多計算機之間分擔工作負荷

across a network, which could be in the same room

在一個網絡中，這可能是在同一個房間裡。

or in a completely different location.

或在一個完全不同的地方。

Let's take a closer look

讓我們仔細看看

at the details of what cloud computing is.

在什麼是雲計算的細節。

Cloud computing has the following characteristics.

雲計算具有以下特點。

It's on-demand and self-service.

它是按需和自助服務。

Use it when you need it, and you can launch the resources

在你需要的時候使用它，你可以啟動資源

from an admin portal or script.

從一個管理門戶或腳本。

It has ubiquitous network access,

它有無處不在的網絡接入。

so you can connect to it via the internet.

所以你可以通過互聯網連接到它。

It utilizes resource pooling,

它利用了資源共享。

so your computing, storage, and other infrastructure

所以你的計算、存儲和其他基礎設施

are used and released when you're done, for others to use.

被使用，並在你完成後釋放，供他人使用。

It features rapid elasticity,

它的特點是快速彈性。

so you can quickly scale up or scale down.

所以你可以迅速擴大或縮小規模。

And it's a pay-per-use,

而且是按使用量付費。

which means you aren't going to pay for a data center

這意味著你不需要支付數據中心的費用。

full of unneeded, under-utilized computing power.

充滿了不需要的、未被充分利用的計算能力。

Cloud comes in five deployment models.

雲有五種部署模式。

Private cloud, public cloud,

私有云，公共雲。

community cloud, multi-cloud, and hybrid cloud.

社區雲、多雲和混合雲。

And finally, delivery models.

最後，交付模式。

There are three main ones,

主要有三個。

Software as a service, or SaaS,

軟件即服務，或稱SaaS。

platform as a service, or PaaS,

平臺即服務，或稱PaaS。

and infrastructure as a service, or IaaS.

和基礎設施作為一種服務，或稱IaaS。

Ultimately, the biggest advantage of cloud computing

歸根結底，雲計算的最大優勢是

is that it allows you to only pay for

是，它允許你只支付

the resources that you need when you need them.

在你需要的時候提供你需要的資源。

There is no need to purchase

不需要購買

hardware and software well ahead of demand.

硬件和軟件遠遠領先於需求。

Cloud allows you to deal with demand elastically,

雲使你能夠彈性地處理需求。

meaning you can scale the resources up and down

這意味著你可以增加和減少資源

according to need.

根據需要。

Just as importantly, you only pay for the resources you use.

同樣重要的是，你只為你使用的資源付費。

So where are all the developments

那麼，所有的發展都在哪裡？

in cloud computing leading us?

在雲計算中引領我們？

For one, they're leading us to establishment

首先，他們正在引導我們建立

of cloud computing as a common practice in technology.

的雲計算作為技術的一種常見做法。

This means that cloud computing has become pervasive to IT,

這意味著雲計算已經成為IT行業的普遍現象。

and it is really another tool in the shed.

而這確實是棚子裡的另一個工具。

The developments also are leading us

這些發展也在引導我們

to emergence of new cloud capabilities,

到新的雲計算能力的出現。

such as machine learning and big data analytics.

如機器學習和大數據分析。

And one last place they're leading

還有一個他們領先的最後一個地方

is to the mass migration of applications and data

是對應用程序和數據的大規模遷移

to cloud-based platforms.

到基於雲的平臺。

As a result, we'll see a lot of projects based on that goal.

是以，我們會看到很多基於這一目標的項目。

Ultimately, the promise that cloud computing delivers on

歸根結底，雲計算所實現的承諾是

is flexibility.

是靈活性。

It can dynamically scale up or down

它可以動態地增加或減少規模

to meet your organization's computer hardware,

以滿足你的組織的計算機硬件。

software, and cost demands.

軟件，以及成本需求。

(light music)

(輕音樂)