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Microsoft is the 17th largest contributor to Linux
The Linux Foundation has released 2012 Linux White Paper which analyzes developers and contributors of the Linux kernel from 2.6.36 to 3.2.The top ten contributors are: Red Hat, Intel, Novell, IBM, Texas Instruments, Broadcom, Nokia, Samsung, Oracle, and Google. The software giant Microsoft's contribution ranked at 17, while the company's CEO Steve Ballmer has claimed previously that Linux is a cancer. Microsoft engineers have contributed 688 patches, which are mostly related to Hyper-V vir...
Linux,Microsoft,Contribution 2012-04-05 07:43:19
Vine video sharing drops significantly
According to Sina Tech, social media analytics site Topsy data shows that Vine's short video sharing has dropped significantly since Facebook's photo sharing service Instagram launched the video sharing feature.Instagram co-founder Kevin Systrom announced on Thursday that Instagram supported short video sharing. Vine was once called the Instagram in video sharing world, but now, Instagram has launched its own 15-second short video sharing feature for its 130 million users.Vine, was acquired by T...
Java API vs Framework
What is the difference between a Java Library and a framework? The two concepts are essentially important for a Java developer. The most important difference between a library and a framework is Inversion of Control. It means that when you call a library you are in control. But with a framework, the control is inverted: the framework calls you. (This is called the Hollywood Principle: Don’t call Us, We’ll call You.) This is pretty much the definition of a framework. Basicall...
Difference,API,Framework,Library,Java 2011-12-19 13:40:33
Save QWidget as image
Qt library is an excellent GUI library for C++ programmers developed by Nokia and now is an open source project. Often, we may use QPainter to draw strings, lines or images on a QWidget. We can override the QWidget's paintEvent() method when we want to use QPianter object to draw something on a QWidget. If we want to save the items drawn on QWidget as image for later reference, what can we do? We can save a QWidget as an image. Here is the code for achieving this: QPixmap pixmap(this->size())...
IDC lists top 6 myths, realities about open source
Summary: What are the top 6 myths? That open source software will enter every market, is inherently innovative, it improves faster than commercial software, that it has less lock-in, that it’s free and that it has little benefit if one is not involved in the community. IDC calls these ideas “myths†but acknowledges there’s more than a grain of truth to all of them At its Directions 2012 conference in Boston today, IDC rev...
IDC,Open source,Reality,Free,Contribution 2012-03-16 08:47:53
Going Fullscreen with Canvas
As notes in the Release Notes, Firefox Aurora introduced the Fullscreen API. This means that it will appear in the release version of Firefox in about 3 months.This is one of several features that will be fantastic for games on the web. Other exciting APIs are theGamepad, Canvas, and Audio. Some of these APIs still need work to be suitable for real-time games, but it’s a great time to be involved in building games for the web.I wanted to try out the Fullscreen API so I...
HTML5,Canvas,Full screen,2D,Drawing 2011-11-22 08:37:23
Unix directory hierarchy history
As a beginner user of Unix or Linux, people would frequently get confused about the use of different directories of the system. For example, there is a /bin directory under root(/), it is used to store binary files. However, there are /usr/bin and /usr/local/bin under /usr which are used for storing binary files as well. Some systems even have /opt/bin. What are the differences among them? Though there are articles explaining different directories in *nix such as Filesystem Hierarchy Stan...
UNIX,LINUX,FILESSYTEM,DIRECTORY HIERARCHY,HISTORY 2016-10-21 23:47:17
37 powerful Linux shell commands
To work on Linux platform, you cannot avoid using shell commands to complete some tasks. These tasks can be as simple as list files in some directories or find some text in some file, or can be as complex as monitoring processes. In this post, we will share 37 powerful Linux shell commands. Task Commands 1 Delete file with 0 byte(empty file) find . -type f -size 0 -exec rm -rf {} \;find . type f -size 0 -delete 2 Check process memory consumption ps -e -o "%C : %p : %z : %a"|sort -k...
Linux command,List 2013-09-16 07:47:16
The worst program I ever worked on
Most contract jobs fade pretty quickly in memory after the work is done, but some you remember for the rest of your life. This is one of the latter variety. This happened long ago, at a (fair sized) company that shall remain nameless. The software was a chunk of code that had been maintained by a single guy that had been fired recently and was a core component of a commercial system. So far nothing unusual, companies tend to find out that they have a piece of critical knowledge in one head all ...
Understand diff in Unix
diff is an important tool program in Unix. It is used to compare differences of two files, it is the foundation for code version control. If you type : $ diff <file_before_change> <file_after_change> diff will tell you what's the difference between these two files. The result may not be so easy to understand, so now I will show you how to understand diff. 1. 3 formats of diff diff has 3 formats due to historic reasons. normal diff context diff unified diff 2. Demo files For easy d...
diff,Unix,version control,git 2012-09-03 10:49:36
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