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Google Redefines Web Browser

发布者: chrislau2001 | 发布时间: 2008-9-4 08:28| 查看数: 1405| 评论数: 1|

Google has introduced a new Web browser, called Chrome, aimed at wresting dominance of the browser market from Microsoft's Internet Explorer. The move takes the Google-Microsoft rivalry to a whole new level. If Google succeeds, it will be a big deal, with major ramifications for the future of the Web.

But just how good is Chrome? How does it differ from IE and from less popular, but still important, browsers like Mozilla's Firefox and Apple's Safari?

I've been testing Chrome for about a week, trying out all its features and using it side by side with Microsoft's latest iteration of IE, which came out just last week.

My verdict: Chrome is a smart, innovative browser that, in many common scenarios, will make using the Web faster, easier and less frustrating. But this first version -- which is just a beta, or test, release -- is rough around the edges and lacks some common browser features Google plans to add later. These omissions include a way to manage bookmarks, a command for emailing links and pages directly from the browser, and even a progress bar to show how much of a Web page has loaded.

Chrome's interface has some bold changes from the standard browser design. These new features enhance the Web experience, but they will require some adjustment on the part of users. For instance, Chrome does away with most menus and toolbar icons to give maximum screen space for the Web pages themselves. Also, Google has merged the address bar, where you type in Web addresses, with the search box, where you type in search terms. This unified feature is called the Omnibox.

One striking difference in Chrome is how it handles tabs, which display a single Web page. In Chrome, each tab behaves as a separate browser. The bookmarks bar, Omnibox, menus and toolbar icons are located inside the tab, rather than atop the entire browser. The tabs appear at the top of the computer screen. Chrome also groups related tabs. If you open a new tab from a link in a page that's already open, that new tab appears next to the originating page, rather than at the end of the row of tabs.

Despite Google's claims that Chrome is fast, it was notably slower in my tests at the common task of launching Web pages than either Firefox or Safari. However, it proved faster than the latest version of IE -- also a beta version -- called IE8.

Meanwhile, Microsoft hasn't been sitting still. The second beta version of IE8 is the best edition of Internet Explorer in years. It is packed with new features of its own, some of which are similar to those in Chrome, and some of which, in my view, top Chrome's features.

For example, while IE8 also groups related tabs, it assigns a different color to each such tab group and allows you to close them all with one click. It has a 'smart' address box of its own, that drops down a list of suggestions as you type, though it retains a separate search box.

IE8 also has breakthrough privacy features that exceed Chrome's, and includes a new technology called Accelerators, which allows you to take rapid action on any selected word or phrase on a Web page, such as generating a map for a place name, without switching to a new page.

As they develop, each of these browsers has a good chance of besting Firefox 3.0, which I have regarded as the best Web browser for Windows, the only operating system on which Chrome currently runs. But they will have to get faster at loading pages. And, to best Firefox on the Macintosh, Google will have to make good on its promise to produce a Mac version of Chrome, something it says it will do in the coming months. Microsoft has no plans to produce a Mac version of IE8.

Chrome and IE8 are far more advanced than Apple's Safari. Safari is speedy on both Mac and Windows platforms, but lacks many of the key intelligent features of its newer Google and Microsoft rivals.

Why is Google igniting a new browser war? There are two main reasons, and both involve competing with Microsoft. First, the search giant fears that because its search engine and other major products depend on the browser, Microsoft -- with its rival online products -- might be able to gain an advantage by altering the design of IE, which has roughly a 75% market share.

Second, and more important, Google sees the Web as a platform for the software programs, or applications, that currently run directly on computer operating systems, notably Microsoft's Windows. It says current browsers lack the underlying architecture to enable future, more powerful Web applications that will rely more heavily on a common Web programming language called JavaScript. Chrome was designed to be the world's speediest browser at handling JavaScript.

That move might one day make Chrome a sort of online operating system that competes with Windows. 'Think of Chrome as more than a simple Web browser,' Google declares. 'It's a platform for running Web applications.'

I tested Chrome, and IE8, on a plain-vanilla Lenovo ThinkPad laptop running Windows XP, and equipped with a modest processor and one gigabyte of memory.

To gauge Chrome's speed at loading Web pages, I launched two large groups of typical Web pages simultaneously, each site opening in its own tab. One group included 15 sports sites, the second 19 news sites. In both tests, Chrome's speed fell in the middle, at 35 and 44 seconds, respectively. IE8 was slower, taking 49 and 75 seconds to open the two groups of sites. But Firefox and Safari were much faster, notching identical speeds of 19 seconds for the 15 sites and 28 seconds for the 19 sites.

Google claims that future, more sophisticated Web applications relying more heavily on JavaScript than today's sites do would run faster on Chrome. Of course, I couldn't test any claim about future scenarios, but I did run Chrome on several JavaScript test sites, used by developers. It handily beat the other browsers. However, Google doesn't claim users would see much difference on current Web application sites.

I also tested Chrome's compatibility with scores of common Web sites. In general, it did well, rendering the sites properly. But I ran into problems with video. Some video sites refused to recognize Chrome, because its development has been a secret. On others, like Major League Baseball's site, videos mostly played properly, but sometimes didn't.

IE8 also has some compatibility issues, for different reasons. It's the first version of Internet Explorer to hew closely to Web standards. Earlier versions used some nonstandard ways of rendering Web sites, prompting some site designers to adopt techniques that made their pages work in IE, but look odd in Firefox and Safari. Now, ironically, these pages also look strange in IE8. So Microsoft was forced to build in a special Compatibility View button that users must click to see the sites properly.

Chrome is built on three core design principles. The first is its spare user interface: just two menus and a handful of toolbar icons. IE introduced a similar approach in its version 7, but with a difference. Microsoft allows users to restore a traditional menu bar; Google doesn't. The only toolbar icon you can add in Chrome is a Home button.

The second principle is that a user can type anything into a single place, the Omnibox, and instantly get suggestions on where to go, gleaned from the user's own browsing history and Google's rankings of popular sites. Whether you type in a Web address or a search term, the Omnibox is very smart. In my tests, it sometimes came up with the right destination after I typed only one or two letters of the name of a site I often visited.

The Omnibox has another cool feature: Tab-to-Search. If you type in the name of another site that includes its own search feature, like Amazon.com, the Omnibox lets you just press the tab key to search within that site, without opening it first. Chrome, through its Options settings, also lets you change the default search engine used by the Omnibox. Instead of Google's own search service, you can use Microsoft's Live search, Yahoo search, or others.

The third big principle behind Chrome is that each tab runs, under the hood, as a separate browser. Tabs can be dragged off the main browser and turned into separate windows. If one tab crashes, the rest of the browser keeps running. But this doesn't work perfectly. In my tests, all of Chrome died on me when I tried watching an Olympics video on the NBC site.

You can even make a tab a standalone application that runs from the Start Menu, or the desktop, as if it was a separate program.

Chrome has a few other key features. When you open a new tab, you don't get a blank page, but a set of thumbnails for your most-visited pages, plus lists of recent search engines you've used, recently used bookmarks and recently closed tabs.

Like other browsers, Chrome puts up a warning when you try to visit a malicious or phony Web site, and it has a private browsing mode, called Incognito, which allows you to browse without leaving any history on your computer -- a feature popularized in Safari.

Chrome also has a pop-up blocker, but it's annoying because it flashes a notice that a pop-up has been blocked. IE also does this, but unlike in Chrome, the warnings are much less intrusive.

Internet Explorer 8 has some new features Chrome lacks. Its private browsing mode, called InPrivate, is the first I've seen that not only leaves no traces on your own computer, but also bars Web sites from collecting some types of information on where you've previously been surfing.

While IE8's address box and search box remain separate, each also offers rapid suggestions; and both are organized better than Chrome's. For instance, the suggestions that drop down from its address bar are divided neatly into categories drawn from the browser's own guess, your history and your favorites. One downside: For this to work in Windows XP, you must first install Microsoft's desktop search product.

Like Chrome, IE8 lets you switch your default search provider, but it also allows you to switch search engines on the fly. When you type in a search term, icons for alternate search engines appear at the bottom of the suggestion list, and you need only click on these to see search results from, say, Google, instead of Microsoft's own Live search engine.

IE8's Accelerators feature presents a blue-arrow icon above any text on a Web page that you have selected. Clicking on the icon brings up a list of actions you can take using the selected text, such as posting it to a blog, emailing it, mapping it or searching it. While these actions are set by default to use Microsoft's own Web services, you can change them to use Google's, Yahoo's, or those from other companies.

Microsoft also has built in a feature called Web Slices. These are portions of a Web site that a site developer can designate to appear in the IE8 Favorites bar and to constantly update themselves. An example might be bidding on eBay.

Like Chrome, IE8 also displays useful information whenever you create a new tab, including a list of recently closed tabs and a list of Accelerators.

With the emergence of Chrome, consumers have a new and innovative browser choice, and with IE8, the new browser war is sure to be a worthy contest.

Walt Mossberg


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chrislau2001 发表于 2008-9-4 08:29:38

谷歌带来网络浏览器新概念

谷歌(Google)推出了一款新网络浏览器Chrome,此举是为了打破浏览器市场由微软(Microsoft) Internet Explorer(IE)独霸天下的局面。这也把谷歌与微软之间的竞争带到了全新的高度。如果谷歌在网络浏览器上取得成功,将是意义重大,会令网络未来的发展变得更加扑朔迷离。

但是,Chrome到底有多好?它和IE有什么不同之处?与Mozilla的火狐(Firefox)、苹果(Apple)的Safari等更加小众、但同样重要的浏览器又有什么区别呢?

我对Chrome进行了大约一周的测试,尝试了它所有的功能,并且同微软上周推出的最新版本IE进行了对比。

我的结论是:Chrome是一个智能、新颍的浏览器,在通常情况下,它能够使浏览网页变得更加快捷、轻松,不太会令人失望。但是,眼下的这个测试版还不够精细,缺乏一些常见的浏览器功能,比如收藏夹的书签管理、直接在浏览器上通过电子邮件发送链接或页面等,它甚至连显示网页下载进程的进度条都没有。不过谷歌计划以后进行补充。

Chrome的界面设计较传统浏览器有一些大胆的改变。这些新功能提升了浏览网页的体验,但却需要用户去适应。比如,Chrome去掉了大多数菜单和工具栏的图标,为网页本身提供尽可能大的屏幕显示空间。此外,谷歌还有一个被称为Omnibox的一框多用功能,实际上就是把地址栏(输入网站地址的地方)和网络搜索框(输入搜索关键字的地方)整合到了一起。

Chrome最与众不同的一个地方体现在它对标签页的处理上,每个标签页单独显示一个页面。在Chrome上,每个标签页就像是新开的浏览器页面一样。书签条、Omnibox、菜单及工具兰图标出现在每个标签页上,而不是整个浏览器的最上端。Chrome还会把相关标签页进行归类。如果用户通过已打开页面上的链接打开新的标签页,这个新页面就会放在当前所在标签页的旁边,而不是标签页列表的末端。

尽管谷歌宣称Chrome速度很快,但在我的测试中,它在打开页面这样的普通任务上却明显比火狐或Safari慢。不过事实证明,它比IE最新版本要快。这个被称为IE8的最新版本也是一个测试版。

与此同时,微软并没有停滞不前。IE8的第二个测试版是数年来最好的IE,它扩展了一些独特的新功能,也包含了一些与Chrome类似的功能。而且在我看来,其中一些要比Chrome更 一筹。

比如,IE8也有为相关标签页归类的功能,而且不同类的标签页以不同的颜色显示。此外,用户只要通过一次点击就可以把同一类标签页全都关掉。IE8还有一个“智能”地址栏,在你输入的时候它会出现一个下拉列表显示自动完成建议。不过,它也有一个单独的搜索框。

广告此外,IE8在保护隐私方面的突破也超过了Chrome。它所采用的新技术之一“加速器”(Accelerators)允许用户对当前网页上选中的某个词或短语进行快速操作,而无需切换到新的页面,比如显示一个地名的相关地图。

随着不断的发展,Chrome和IE8都可能击败火狐3.0,后者是我眼中最棒的Windows系统浏览器。但是,这些浏览器必须在下载网页的速度上多花点功夫。要想超过火狐在Macintosh上的表现,谷歌必须信守自己的承诺,在未来数月开发出Mac版的Chrome。微软目前没有开发Mac版IE8的计划。

Chrome和IE8比苹果的Safari先进得多。Safari无论是在Mac平台还是Windows上速度都非常快,但它缺乏很多重要的智能功能,而谷歌和微软的新版浏览器在这方面可谓一应俱全。

谷歌为什么要挑起一场新的网络浏览器之争呢?我想主要有两个原因,而且都和与微软的竞争有关。首先,这家搜索引擎巨头担心,由于它的搜索引擎及其他主要产品依赖于网络浏览器,微软和其他网络产品竞争对手可能会通过改变IE设计来获得竞争优势。眼下,IE的市场份额大约为75%。

其次,也是更为重要的一个原因,谷歌把网络看作是其软件或技术应用的平台,而它们目前都是在电脑操作系统上直接运行的,当然主要是在微软的Windows系统上。谷歌称,市场上现有的浏览器缺乏能够运行更加强大的未来网络应用软件的内部构建,而将来的这些网络应用软件将更加依赖常见的网络编程语言JavaScript。而Chrome的设计初衷之一就是成为全球处理JavaScript速度最快的浏览器。

谷歌的这种设计可能会使Chrome有朝一日成为可与Windows媲美的网络操作系统。谷歌宣称,不要把Chrome仅仅看作是一个浏览器,它是运行网络应用软件的平台。

我在一款联想(Lenovo) ThinkPad笔记本上对Chrome和IE8进行了测试。这款笔记本电脑属于基本款,操作系统是Windows XP,处理器性能尚可,内存1G。

为了测试Chrome下载网页的速度,我分别打开了两大组普通网页,每个网站占一个标签页。其中一组包括15个体育网站,另一组包括19个新闻网站。在两项测试中,Chrome的耗时分别为35秒和44秒,在所有主要浏览器中排名居中。IE8速度更慢,打开两组网页分别用了49秒和75秒。但是火狐和Safari却要快很多,它们的耗时相同:打开15个网站用了19秒,显示19个网站用了28秒。

谷歌表示,未来更为复杂的网络应用将比当前的网站更加倚重于JavaScript,因此能在Chrome上获得更快的运行速度。当然,我无法对任何的未来假设进行测试,但我在开发者使用的几个JavaScript测试网站进行了运行测试,Chrome轻松胜过了其他浏览器。但谷歌也没说,用户会在目前网络应用网站上发现新浏览器有什么不同之处。

我还测试了Chrome与诸多常见网站的兼容性。总的来说,Chrome表现非常不错,正确地打开了网站。但我在视频方面却遇到了问题。一些视频网站拒绝承认Chrome,因为后者的开发一直是秘密进行的。使用Chrome浏览美国职棒大联盟(MLB)等网站时,大多数视频都能正确播放,但有时候也会出现问题。

IE8也存在一些兼容性问题,不过原因和Chrome不同。这是第一个严格遵循网络标准的IE版本。早些时候的版本使用了一些非标准的浏览手段,这使得一些网站设计者不得不采用新技术使得网页能在IE下运行,但这会使他们的网页与火狐及Safari出现兼容问题。具有讽刺意味的是,现在这些网页在IE8中也显得面目全非,因此微软不得不设了一个特殊的兼容浏览模式按键,用户必须点击这个按键才能正确浏览网站。

Chrome的开发基于三个核心设计原则。首先是简洁的用户界面,只有两个菜单和几个工具栏图标。微软的IE7也引进了类似的理念,但有所区别。微软允许用户恢复传统的菜单栏;而谷歌的不行。你在Chrome上唯一可添加的工具栏图标就是主页按钮。

第二个原则是用户可以在一个叫Omnibox的栏里输入任何内容,这个功能马上就能提示你要去的网址,主要来自用户个人的浏览记录以及谷歌对大众网站的排名。无论你是输入网址或搜索条目,Omnibox都非常智能化。在我的测试中,有时我只需要输入常访问网站名字的一两个字母,Omnibox就能给我提供正确的指引。

Omnibox还有另外一个很酷的功能:标签搜索。如果你输入一个自身有搜索功能的网站名字,例如亚马逊(Amazon.com),Omnibox可以让你只需按个标签键,就可以在该网站进行搜索,而不需要先打开该网站。通过设定选项,Chrome还能让你改换Omnibox使用的默认搜索引擎

。除了谷歌自身的搜索引擎,你还可以使用微软的Live search,或者雅虎(Yahoo)以及其他的搜索引擎。

Chrome的第三个原则是每个标签都作为单独的窗口运行。你可以将标签拖出主浏览器,成为单独的窗口。如果一个标签出现问题,其他浏览器会继续运行。但这个功能并不是完美的。我在测试中试图在美国全国广播公司(NBC)网站观看奥运会视频时,所有的Chrome窗口都无法运行了。

你甚至可以让标签成为一个单独的应用程序,从开始菜单或桌面直接运行,就好像这是个单独的软件一样。

Chrome还有其他几个重要功能。当你打开一个新标签时,你点开的不是一个空白页面,而是一系列经常访问页面的小链接,还有近期使用的搜索引擎、书签和近期关闭的标签列表。

和其他浏览器一样,当你试图访问恶意或欺骗网站时,Chrome会发出警告;Chrome还有一个叫Incognito的隐私浏览模式,在这个模式下浏览网页不会在电脑上留下任何记录──这是Safari上颇受欢迎的一项功能。

Chrome还有一个弹出窗口拦截功能,但拦截后会跳出提示,这比较烦人。IE也有这个功能,但和Chrome不同,其拦截警告很不明显。

IE8有一些Chrome不具备的新功能。IE8的隐私浏览模式InPrivate不仅不会在电脑上留下记录,而且还能阻止网站从你此前浏览的网页收集某些信息,这个功能是我第一次见到。

尽管IE8的地址栏和搜索栏仍然是分开的,但各自也能提供快速指引,而且都比Chrome组织的更有效。例如,地址栏的下拉列表简洁地分为浏览器自身猜测、你的浏览历史以及你的收藏等几类。不过,如果要在Windows XP上使用这一功能,你必须先安装微软的桌面搜索产品。

和Chrome一样,IE8也能允许你转换默认搜索引擎,它还能让你实时转换。当你键入一个搜索条目时,替代搜索引擎的图标就会在提示列表的底部出现,你只需要点击图标,就可以查看谷歌而非微软自身Live搜索引擎的搜索结果。

IE8的加速功能在你选定的网页任何文本上方显示一个蓝色箭头。点击这个图标就会出现你对选定文本的可操作列表,例如复制到博客,通过电子邮件发送,进行转换,或是就此进行搜索。尽管这些功能都是默认使用微软自身的网络服务,但你也可以选择使用谷歌、雅虎或是其他公司的产品。

微软还打造了一个叫Web Slices的功能。通过这个功能,你可以选择网页的某些部分,将其显示在IE8的收藏夹中,它们还可以经常自动更新。比如说eBay的竞标页面。

和Chrome一样,无论你何时创建一个新标签,IE8都会显示有用的信息,包括一个近期关闭标签的列表以及一个加速列表。

随着Chrome的出现,消费者有了新的创新性的浏览器选择;而随着IE8的加入,这场新的浏览器大战注定会是场有益的竞争。

Walt Mossberg
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