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  What did iPhone bring to us in the past 5 years?

It is five years now since the first iPhone was released on 29th June 2007. In these 5 years, iPhone is the biggest variable in technology industry on this planet. It brings revolutionary change to many industries including the mobile phone, communication and Internet. It brings us into the era of mobile web. BuzzFeed collected a series of pictures to summarize the changes brought to us by iPhone in these 5 years. Here are some of them.1. Apple is the most valuable company in the worldIn August ...

   Apple,Change,World,Flash,iPhone     2012-07-09 14:27:32

  Text editor vs IDE

A meaningless editor war Many people like to debate which editor is the best. The biggest controversy is between Emacs and vi. vi supporters like to say: "Look it's very fast to type in vi, our fingers no need to leave the keyboard, we even no need to use the up,down,left and right keys" Emacs supporters often downplayed this and said: "What's the use of typing fast if I just need to press one key and it equals to dozens keys you type in vi?"In fact, there is another group of people who like to ...

   Editor,IDE,Structured editor,vi     2013-05-20 12:03:39

  Revenue = X

We've been experimenting with app prices for quite some time and again and again we've noticed a funny effect:No matter what price we choose, we always make the same revenue.I attached two charts to illustrate that. I recently lowered the price of the iPad app (http://bit.ly/92xWv1) from 5 to 1 Dollars. At first the sales spike, then they even out to previous levels. Meaning: By cutting the price by factor 5, I am selling exactly 5 x more apps. Then we lowered the price of iA Writer for Mac...

   Revenue,Price,Productivity,Investment,Discount,Software     2011-11-17 02:31:58

  9 reasons to use Zsh

Like majority *nix users, I have been using bash for many years. Sometimes I feel uncomfortable with bash. I tried use some other shells as well such as ksh, tcsh and zsh which I am going to talk about. A few days ago, I found an open source project ranking in the 6th named oh-my-zsh on Github, I downloaded it and had a try with it. It's amazing. We should use zsh to replace bash now. Why do we need to use zsh? Here is a 4 minutes YouTube video which shows many reasons why we should switch from ...

   zsh, advantage, command     2012-09-28 12:46:39

  Install both 32 bit and 64 bit WAMP server

WAMP server is a platform tool for serving PHP applications on Windows. It includes a combination of Apache, MySQL and PHP service which can help developers test or run PHP applications with minimal setup. Sometimes one would first have a 32 bit version of WAMP installed and a few applications have been configured. But later s/he would mistakenly installed a 64 bit version of WAMP and somehow the 32 bit version configuration is overwritten. This causes a problem where the old applications config...

   PHP,WAMP,64 BIT,32 BIT,MULTIPLE VERSION     2017-03-18 01:14:21

  Java code to retrieve Bing background image path

When Microsoft presented their search engine Bing, this new design gave us some surprise, especially its background images, they are very beautiful and it will change every day. But   unfortunately we cannot save the image onto our PC by right clicking the mouse.  After some research on its source code, I found a feasible but not so sophisticated way to achieve this, we can retrieve the image path from the source code and then use this path we can download the image. This is just to sh...

   Java,Bing,Background image path,URL,Download,Save     2012-05-02 10:51:51

  Some cases where MySQL cannot be started

After installing MySQL, when we try to start MySQL, sometimes we may not be able to start it. The reasons can be different. We share some general cases where MySQL cannot be started. Case 1: Directory or file permission issue If the permission is set wrongly in MySQL's $datadir and its sub directories or files, MySQL will not be able to read and write files normally. Error message: mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql/data /usr/local/mysql/bin/mysqld_safe: lin...

   MySQL,Error,Log     2013-08-15 03:32:36

  Backend-as-a-service?

As the list of *-as-a-service’s continues to grow, I thought I’d throw one into the mix. What about the idea of a backend-as-a-service (BaaS)? The recent surge of client side Javascript frameworks along with the attractiveness of simple RESTful APIs has created an environment where server-side interaction can be reduced to simply database interaction (including validation and some computation). But why stop there? What if the server-side of the equation was simply a RESTful, ...

   Web design,Backend,Service,BaaS,Client JavaScript     2011-12-29 09:07:38

  Different types of keystore in Java -- JCEKS

JCEKS stands for Java Cryptography Extension KeyStore and it is an alternative keystore format for the Java platform. Storing keys in a KeyStore can be a measure to prevent your encryption keys from being exposed. Java KeyStores securely contain individual certificates and keys that can be referenced by an alias for use in a Java program. The process of storing and loading different entries in JCEKS is similar to what JKS does. So please refer to the article Different types of keystore in Java -...

   Java,KeyStore,JCEKS,Tutorial     2015-01-05 00:30:56

  Samsung announces Galaxy Note II

Samsung announced Galaxy Note II in today's Mobile Unpacked conference. It has been one year since the first generation of Galaxy Note released in October last year.Galaxy Note â…¡ is not lighter, but a little thinner compared to Galaxy Note I. It is equipped with Android 4.1 Jelly Bean with a 5.5-inch screen. Detailed parameters are as follows: 1.6GHz quad-core Exynos processor 5.5 inches HD Super AMOLED screen, 1280 x 720 (16:9) 8 megapixel rear camera, 1.9 megapixel front camera 2G RAM,...

   Samsung,Galaxy Note II,Parameters,Price     2012-08-29 20:01:08

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