【正文】 在執(zhí)行垃圾清理時， V8會中斷正在運行的應用程序。 iOS 4也可以做到第一點，但是不能進行 3G和 WIFI的轉換。 蘋果最有說服力的一點是， “Android看起來與 iPhone完全相似。優(yōu)點是，平臺所有者可以節(jié)省大量的時間和精力開發(fā)和維護平臺，因為第三方開發(fā)者會為做一些事情來幫助平臺所有者。在一些預測認為將會有越來越多的應用市場，而一些不這么認為。這樣的壟斷導致沒有競爭對手。 “越獄 ”是一個過程，允許 iPad， iPhone和 iPod Touch用戶獲得 root訪問權限和解鎖，從而消除任何由蘋果公司的操作系統強加于他們的限制?？紤]安全問題，谷歌禁止使用某些組件。相反于 iOS越獄， Root不是需要運行沒有在官方 Android市場的發(fā)布應用程序。整個過程都在蘋果公司的控制之下。 無集成平臺幾乎不做任何事情。 iPhone OS更側重于娛樂，它非常友好。而 iOS 4，通常是封閉的平臺成員，管理從 OS開發(fā)到設備制造的一切過程。蘋果用戶對蘋果這個品牌十分忠誠忠誠，他們愿意授權蘋果為他們作出的決定。當然這篇文章的內容會因時間而失效 。喬布斯創(chuàng)造的 “封閉平臺 ”。自由 39。這是一個 39。強大的瀏覽器內置于手機中，他們的生產商引發(fā)了世界手機的變革。然而，像谷歌公司絕對有能力生產自己的設備。根據整合平臺上，我們將他們分成 4種：全集成平臺，市場集成平臺，設備集成平臺，并無集成平臺。是一個過程，在 Android的 Linux的子系統中，它允許運行 Android操作系統的手機用戶獲得特權控制（稱為 “Root訪問 ”），類似運行 IOS操作系統蘋果設備的 “越獄 ”，克服運營商和手機制造商在手機上設置的限制。網絡供應商使用此功能來限制這些手機使用特定的國家和網絡供應商。找到，蘋果將檢查他們每個程序。這些平臺開發(fā)商可以在任何市場發(fā)布他們自己的應用程序，使市場為了生存相互競爭。第三方 iPhone應用程序被限制在狹窄的范圍內，蘋果將檢查每個被上傳到 “應用商店 ”的應用程序，且拒絕了很多的應用程序在手機上運行。不同平臺發(fā)布的自己的軟件開發(fā)工具包是不同的。 盡管 Android在網絡互動方面十分優(yōu)越，蘋果卻在友好的用戶體驗和娛樂性上是獨一無二的。這就是說，不僅 Flash播放器，但所有 Flash網頁都可以在 Android系統上完美顯示。即使預測失敗， V8會再次修改內部緩存，這不會花費太多的時間和資源。然 后，當在相同的情況下，我們只是使用以前的隱藏的子類。在一些測試中， V8的速度要比 Inter Explorer的 JScript，火狐的SpiderMonkey和 Safari的 JavaScriptCore更加迅速。 Android vs. iPhone 作為智能手機操作系統中最頂尖的兩 個，我們相信， Android和 iPhone都各有自己的優(yōu)勢和缺點。這功能可以使用戶將不同分類的軟件放入不同的文件中，使它更便于管理。 核心操作系統和核心服務層使用 C語言設計，來處理核心系統服務，使開發(fā)人員能夠執(zhí)行文件訪問， socket請求和數據處理。 Android的最新版本的 Android Froyo，提出一些新的特點。 Android提供的核心服務，如安全，內存管理，進程管理，網絡堆棧和驅動器，是基于 。 現在智能手機操作系統的兩巨頭是 Android和 iPhone OS。要成為一個智能手機操作系統，該系統應： PC式的服務。s Linux subsystem, similar to jailbreaking on Apple devices running the iOS operating system, overing limitations that the carriers and manufacturers put on such phones. Rooting makes it possible to use custom versions of the Android system such as CyanogenMod, supporting features unavailable in stock ROMs. It also allows for newer versions of Android not supplied by the original device manufacturer. In contrast to iOS jailbreaking, rooting is not needed to run applications not distributed by the official Android Market. It is needed however, when trying to access paid Android applications from countries which are not part of the paid applications market. . Integration Some panies focus only on their core industry, . develop an operating system and provide an environment for 3rd party development. Others not only do these, but manage the process of developing a software to publicizing it. Depending on the integration of platforms, we sort them to 4 kinds: full integration platform, market integration platform, device integration platform and no integration platform. The publicizing model of full integration platform is very strict. Its management ranges from device manufacturing to application release, whose representative is Apple. Apple?s factory produces iPhone, Apple?s ?App Store? sells application, Apple?s ?iTunes? is the channel of Apple?s resources. The whole process is under Apple?s control. Market integration platforms mit themselves to developing and selling softwares. Google is one of them. Unlike apple, Google don?t have a factory to manufacture its own handsets, but only developed Android and set up ?Android Market? for Android applications. However, panies like Google definitely have the capability to produce its own devices. Google is in good relationship with HTC, who is the OEM of TMobile, O2 and Orange, etc. Device integration platforms produce their own handsets, but don?t set up application markets. Forexample, RIM makes Blackberry, but there?s no official application market for Blackberry. No integration platforms do few things. Microsoft neither makes mobile phones, nor sets up a they do is only developing the operating system: Windows Phone 7. 4. Conclusion Representatives of open and closed platforms, Android Froyo and iOS 4 are both loved and browsers are built into them, and their producers are both world famous revolutionary. Android leans to Inter experience, which es down in one continuous line with Google. But currently, various versions of Android fill the market, and most panies in Open Handset Alliance tend to customize their own Android systems. These facts make Android lack of a general brand image, so people may feel confused and say ?No? to Android. iPhone OS focuses more on entertainment and it?s very friendly. But Apple is too cool to attract more customers: Diehard fans of Steve Jobs buy every product made by Apple, and people who dislike the style Apple do things may just sniffed at Apple. Besides, Android Froyo succeeds the features of open platforms well. It?s a ?users only? platform, because users of Froyo can almost customize everything they want. And members of Open Handset Alliance tend to provide more choices for users. And iOS 4, typically closed platform member, manages everything ranging from OS development to device manufacturing. It?s a ?consider for users? some extent, users of Android canonizes ?free? and ?open?, what they care is if they have 100% management of their handsets, no matter whether the OS is called ?Android? or ?Another?. Apple users are loyal to the brand。 they would like t