Android手机的优缺点

http://www.williamlong.info/blog/archives/590.html-月光微博客

　　对于普通大众来讲，Android手机的易用性和稳定性和苹果iPhone的确有较大差距，某些Android手机还不具备多点触控，使用体验就更差，有人说刷机就可以改善这些功能，但是不能指望所有的普通大众都会刷机，如果一个厂商将本来应该自己做的事情转嫁给用户，那就显得不负责任了。

　　对于Android手机来讲，易用性和稳定性的改善并不是一件简单的事情，无法在短时间内完成，电子产品的易用性和人性化操作，是一个从整体到局部的连贯的过程，注重的是细节的贴心和整体的流畅，需要长期的研究积累，Google还需要在Android上多花一些功夫，才能改善Android手机面对iPhone手机的劣势。

　　当然，低端Android手机的价格优势还是相当明显的，华为和中兴的低端Android手机只有不到千元，三星的i5700也只有1500元，但其CPU实际上和iPhone 3GS差不多，而高端Android手机，如三星i9000等比起iPhone 4来说也无劣势，但价格便宜了1、2千元，价格优势还是很明显的，有点技术的同学选择Android手机也很不错，不喜欢折腾的同学最好用iPhone手机。

　　另外，对于中文用户来说，Android手机的输入法要远远多余iPhone手机，Android手机还可以安装非电子市场的应用程序，而iPhone则必须越狱才行，从这点看，Android手机的开放度比iPhone手机要好很多。

nautilus-gksu allows you to open files with administration privileges

http://www.ubuntugeek.com/nautilus-gksu-gksu-extension-for-nautilus-allows-you-to-open-files-with-administration-privileges.html?utm_source=rss&utm_medium=rss&utm_campaign=nautilus-gksu-gksu-extension-for-nautilus-allows-you-to-open-files-with-administration-privileges

(I installed this on pig7u, HL 20101101)

The gksu extension for nautilus allows you to open files with administration privileges using the context menu when browsing your files with nautilus.

Install nautilus gksu extension in ubuntu

Open the terminal and run the following command

sudo apt-get install nautilus-gksu

Screenshot

Android手机GPRS连接问题的解决

http://www.williamlong.info/blog/archives/586.html-月光微博客

　　我在使用Android手机的时候，经常会出现这样的现象，平时GPRS上网没问题，但是用过WiFi后切换回GPRS网络，切换到GPRS后有图标但连接不上网络了，在海卓APN开关里重新关闭并打开GPRS，甚至重新设置GPRS，都无法解决这个问题，只有重新启动手机之后，GPRS才能正常连接。

　　GPRS连接不上的现象是，GPRS/EDGE的"E"标记是有的，左右两个上下箭头，只有向上的上行箭头亮，右边那个下行的总是灰色的，网络连接长时间无反映，最后显示无法连接网络。

　　最终在一些论坛找到了解决这个问题的方法：

　　在手机拨号中输入: *#*#4636#*#*

　　点手机信息，拖动到最下面，有个选项是"切换DNS检查"，点击将里面的内容切换成 0.0.0.0 allowed (这一步很关键)，之后重启手机，GPRS网络就正常了。

The Web Page Width Dilemma

http://www.alteredimpressions.com/Usability101/Web_Page_Width_Dilemma.php

With so many different resolutions (800x600, 1024x768, etc.), browsers (Internet Explorer, Firefox, etc.), and platforms (Windows, Mac, Mobile ,etc.) in use, it is very difficult to design a page that looks good (or at least looks the same) in all configurations.

To design a page that looks good with most configurations, let's start by defining our main objective:  we must never force a user to scroll horizontally.  In other words, our page must always fit within the available screen width.  This would suggest that we have to design our page for the lowest common denominator.

So let's look at the stats

January 2010
Resolution	% of Total
1280x1024	18.2 %
1280x800	17.3 %
1440x900	10.5 %
1680x1050	10.0 %
1920x1200	4.6 %
1366x768	3.6 %
1920x1080	2.3 %
1152x864	2.1 %
1600x1200	1.4 %
1280x768	1.2 %
Other	4.8 %

Get the latest in stat at w3schools.com

Ready for our next decision

Should we design a fixed-width page, or should we specify the width of our page in percentage terms?

fixed-width: There are pros and cons for both.  The main advantage of a fixed-width page is that the layout will always remain as you intended, even when viewed at higher resolutions.  The main disadvantage is that users with larger screens, set at higher resolutions, will not be able to fully utilize them, and will instead see large, unused blocks of space around your page.

percentage terms: The advantage of establishing our page width in percentage terms, as 100%, is that the page will adjust itself to the resolution of the screen.  This is called a "liquid page design".  The main benefit of this method is that all the available screen real estate will be utilized.  The disadvantage is that the layout of your page will change, and users may find it uncomfortable to read the extremely wide sentences that will result when higher resolutions are used.

If you decide optimize your page for 1024x768, and then decide to follow the fixed-width page method, you must take into account that not all the 1024 pixels will be available (some of them will be used by the browser to display the scrollbar and other "browser chrome").  To accommodate most browsers and platforms, specify your page width at a maximum of 960 pixels. 

If you decide to specify your page at 100% width, you won't have that problem, since it will adjust automatically to the available width.  Just make sure that your page looks best at 1024x768, and that the layout doesn't change much when you view your page at 1280x1024.

 Content provided by Altered Impressions - making websites that work!

Switching Tabs In Eclipse

http://blog.objectmentor.com/articles/2006/12/22/switching-tabs-in-eclipse

There is also Ctrl+E to see a list of open editors (works kind of like quick outline); CTRL+F6, to toogle between editors similar to windows ALT+TAB; CTRL+F7, to toogle between open views and CTRL+F8 to toogle between recent perspectives.

China claims supercomputer crown

http://www.bbc.co.uk/news/technology-11644252

28 October 2010 Last updated at 11:14 ET BBC News

The Tianhe-1A supercomputer is about 50% faster than its closest rival.

China has claimed the top spot on the list of the world's supercomputers.

The title has gone to China's Tianhe-1A supercomputer that is capable of carrying out more than 2.5 thousand trillion calculations a second.

To reach such high speeds the machine draws on more than 7,000 graphics processors and 14,000 Intel chips.

The claim to be the fastest machine on the planet has been ratified by the Top 500 Organisation which maintains a list of the most powerful machines.

High power

China's Tianhe-1A (Milky Way) has taken over the top spot from America's XT5 Jaguar at the Oak Ridge National Laboratory (ORNL) in Tennessee that can carry out only 1.75 petaflops per second. One petaflop is the equivalent of 1,000 trillion calculations per second.

The news about the machine broke just before the publication of the biennial Top 500 Supercomputer list which ranks the world's most powerful machines.

Prof Jack Dongarra from the University of Tennessee, one of the computer scientists who helps to compile the list, said China's claim was legitimate.

"This is all true," he told BBC News. "I was in China last week and talked with the designers, saw the system, and verified the results."

He added: "I would say it's 47% faster than the Oak Ridge National Laboratory's machine, 1.7 Pflops (ORNL system) to 2.5 Pflops (Chinese system)."

Tianhe-1A is unusual in that it unites thousands of Intel processors with thousands of graphics cards made by Nvidia.

The chips inside graphics cards are typically made up of small arithmetical units that can carry out simple sums very quickly. By contrast, Intel chips are typically used to carry out more complicated mathematical operations.

The machine houses its processors in more than 100 fridge-sized cabinets and together these weigh more than 155 tonnes.

Based in China's National Center for Supercomputing in the city of Tianjin, the computer has already started to do work for the local weather service and the National Offshore Oil Corporation.

5 WEBSITE DESIGN TIPS TO BOOST SALES

https://www.paypal-marketing.ca/merchantservices/en/5-website-design-tips.html

Looking for new ways to grow your online business? This issue we have some helpful resources to help you do just that, including five tips to improve your website's design, a checklist for superior customer service and insights from a leading consumer electronics retailer.

When it comes to website design, even seemingly small design elements can affect your sales—one way or another. Here are five design "do's" that can have a positive impact.

1. Do make calls-to-action (CTAs) obvious

Make sure your shopping cart link is easy to find on a page. Use contrasting and/or bold colours to call attention to CTAs, which allow them to stand apart from other elements and get noticed.

2. Do use an action colour for buttons

People respond differently to different colours. Cool colours like blue and green have a calming effect. Warm colours like red and orange inspire passion and impulsive actions. Using red (or other warm colours) for your "add to cart" buttons will help increase clicks on those buttons.

3. Do use the principle of proximity to group related items

For clarity, place descriptions and buttons near the products they're associated with. Make sure each product, description, and button group is separated from other groups to avoid confusion.

4. Do control the flow in your design

Show your product image, then your product description, and then your "buy now" button. Organize design elements to follow the buying process that goes through the customer's mind.

5. Do use whitespace

Allow your design to breathe. Whitespace helps elements on a page get noticed, communicating the desired action to users. Whitespace also improves usability, is aesthetically pleasing, and increases comprehension.

A few simple changes can go a long way towards helping increase sales on your site. Experiment with the above do's and turn more of your visitors into customers.