Q:
:
In your recent article about 4G cellular networks, you didn't mention the iPhone. Do you know if the iPhone 4S, which now indicates (on the AT&T version) that you're sometimes on 4G, is
actually 4G?
您最近写的关于4G蜂窝网络的文章中没有提到iPhone,现在iPhone 4S(AT&T版)的推出意味着你有时会用上4G,您认为iPhone 4S是真正的4G吗?
A:
答:最新的AT&T版iPhone能够使用一种更快的网络,各手机制造厂商和AT&T都在广告中大力宣传其为4G。从理论上讲,它下载数据的速度是之前AT&T版iPhone的两倍。但是跟其他很多手机一样,它实质上使用的加强版的3G网络。
The AT&T
version of the latest iPhone can take
advantage of one of the types of faster networks that has been heavily advertised as 4G, by rival phone makers and by AT&T. It can theoretically download data twice as fast as the prior AT&T iPhone. But like many other phones, it's using what is
essentially a souped-up
version of 3G.
iPhone 4S刚推出的时候,苹果公司(Apple)宣称AT&T版的iPhone 4S速度更快,但并没有将其标记为4G。自从最近一次操作系统升级以后,这些iPhone都被说成在AT&T一些速度更快的网络覆盖区域内使用的是4G技术。但是软件改版并没有改变手机的下载速度,改变的只是指示器上显示的速度。
When the iPhone 4S first came out, Apple announced it had this higher speed on the AT&T version, but didn't label it 4G. Now, since a recent operating-system update, these iPhones say they are on '4G' when they are in an area covered by some of AT&T's faster networks. But the software
revision didn't change the download speed of the phone, only the indicator.
问:您在介绍4G的专栏中称LTE是速度最快的网络,可我的一位工程师朋友说目前的LTE不是真正的LTE,速度更快的一个版本尚在研发之中。
Q:
答:联合国电信标准机构通常同意蜂窝网络版本提升执行长期路线图,LTE就是这样,它代表的意思就是"长期演进"(Long Term Evolution)。
In your
column explaining 4G, you called the LTE networks the fastest. But an
engineering friend of mine says current LTE isn't true LTE, and a faster
version is in the works.
LTE未来会有一个改进版本,称为"高级长期演进系统"(LTE-Advanced),据信速度会快得多,但是美国还没有运营商部署该系统。实际上,当前版本的LTE都还没有得到全面部署。
A:
至于目前的版本是不是"真正的LTE",这是一个纯技术派感兴趣的术语问题。作为消费者,你只需知道今天的LTE速度通常比你能使用的任何其他蜂窝数据网络都快。
The United Nations standards body for telecommunications typically approves yearslong road maps for faster and faster versions of cellular networks and that's true for LTE, which stands for 'Long Term Evolution.'
问:我最近买了一台苹果MacBook Pro笔记本电脑和苹果电脑专用的微软办公软件(Microsoft Office),其中没有Accesss数据库程序,请问有没有苹果电脑版本的Access?
There's a future variant, often called 'LTE-Advanced,' which is
supposed to be much faster. But no U.S.
carrier has deployed it yet. Indeed, the current
version of LTE is still far from full deployment.
答:没有。微软公司(Microsoft)是刻意不提供苹果版本Access的。实际上,即便是Windows PC版的Office办公软件,家庭与学生版、家庭与企业版这两个消费者版本都删去了Access。只有价格最高的版本,即350美元的专业版,才包含了Access在其中。如果你想在你的苹果电脑上运行Access,你必须安装Windows操作系统。
As for whether today's
version is 'true LTE,' this is a nomenclature issue that
mainly interests
technical purists. All you need to know as a consumer, is that LTE today is typically much faster than any other cellular data
network you can use.
Walter Mossberg
Q:
I recently purchased a MacBook Pro and also bought Microsoft Office for the Mac, which didn't include the Access database program. Is there a
version of Access for the Mac?
A:
No. Microsoft has chosen not to offer a Mac version. In fact, even for Windows PCs, the two
consumer versions of Office, Home and Student and Home and Business, omit Access.
Only the costliest edition, the $350 Professional version, includes it. If you want to run Access on your Mac, you'll have to
install Windows.
Walter Mossberg