原文出處：http://www.android.com/about/
What is Android?
Developed by the Open Handset Alliance, Android brings Internet-style innovation and openness to mobile phones.
Android™ delivers a complete set of software for mobile devices: an operating system, middleware and key mobile applications. The Android Software Development Kit (SDK) is now available.
Open
Android was built from the ground-up to enable developers to create compelling mobile applications that take full advantage of all a handset has to offer. It was built to be truly open. For example, an application can call upon any of the phone's core functionality such as making calls, sending text messages, or using the camera, allowing developers to create richer and more cohesive experiences for users. Android is built on the open Linux Kernel. Furthermore, it utilizes a custom virtual machine that was designed to optimize memory and hardware resources in a mobile environment. Android is open source; it can be liberally extended to incorporate new cutting edge technologies as they emerge. The platform will continue to evolve as the developer community works together to build innovative mobile applications.
All applications are created equal
Android does not differentiate between the phone's core applications and third-party applications. They can all be built to have equal access to a phone's capabilities providing users with a broad spectrum of applications and services. With devices built on the Android Platform, users are able to fully tailor the phone to their interests. They can swap out the phone's homescreen, the style of the dialer, or any of the applications. They can even instruct their phones to use their favorite photo viewing application to handle the viewing of all photos.
Breaking down application boundaries
Android breaks down the barriers to building new and innovative applications. For example, a developer can combine information from the web with data on an individual's mobile phone -- such as the user's contacts, calendar, or geographic location -- to provide a more relevant user experience. With Android, a developer can build an application that enables users to view the location of their friends and be alerted when they are in the vicinity giving them a chance to connect.
Fast & easy application development
Android provides access to a wide range of useful libraries and tools that can be used to build rich applications. For example, Android enables developers to obtain the location of the device, and allows devices to communicate with one another enabling rich peer-to-peer social applications. In addition, Android includes a full set of tools that have been built from the ground up alongside the platform providing developers with high productivity and deep insight into their applications.
什麼是 Android？
由開放手機聯盟所開發，Android 帶來了網際網路風格的創新和行動電話的開放。
Android™為行動裝置提供了一套完整的軟件：一個作業系統，中介軟體和關鍵的手機應用程式。Android的軟體開發套件（SDK）現已推出。
開放
Android 是基於使開發者能夠充分利用所有手機所提供的，來創造引人注目的手機應用程式，這才是真正的開放。例如，應用程式可以要求任何手機的核心功能，如撥打電話、發送簡訊或使用相機時，允許開發者為使用者創建更豐富、更全面的體驗。Android 是建立在開放的 Linux 核心。此外，它採用一個自定義的虛擬機器，目的是要優化手機環境中的記憶體和硬體資源。Android 是開放原始碼的，它可以自由的吸納新的尖端技術。該平台將繼續演變為開發者社區一起努力，建立創新的手機應用程式。
所有應用程式皆為平等
Android不會區分手機的核心應用程式和第三方應用程式。他們可以有平等機會去取得手機的功能，提供給使用者廣泛的應用和服務。藉由Android 平台上的裝置，使用者可以客製化自己的手機內容。他們可以更換手機的屏幕，撥號器的風格，或任何應用程式。他們甚至可以命令自己的手機使用自己喜愛的圖片瀏覽器來觀看所有照片。
打破應用程式之間的邊界
Android 打破了障礙，建設新的創新應用。例如，開發人員可以結合來自網絡的資訊與個人行動電話中的資料－－如用戶的連絡人、日曆或地理位置 - 提供一個更相關的用戶體驗。藉由 Android，開發者可以構建一個應用程式，使用戶能夠查看他們的朋友的位置，當發出警報時，讓附近的人有機會進行接觸。
快速＆方便的應用程式開發
Android 提供了廣泛有用的函式庫和工具，可以用來建立豐富的應用程式。例如，Android 使開發人員能夠取得裝置的位址，並允許裝置與其它豐富的社會應用程式互相溝通。此外，Android 包含全套的工具，能夠藉由平台，提供開發人員高效率和深刻的洞察力發揮在他們的應用程式上。
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