MongoDB is an open source document oriented database, developed with C++, it is to solve some real problems existing among development communities. In October 2007, MongoDB development began at 10gen, in 2009, MongoDB was open sourced as a standalone product. 10gen provides technical support, training and consultancy service.According to 10gen education, 10gen will provide some training courses for MongoDB starting from 22 October, 2012. Now it's available for registration.There are two courses currently :M101 and M102, target to developers abd DBAs. The courses will end on 10 December 2012, 1...

malloc and free are C++/C language standard library functions, while new/delete are operator of C++. They can be used to allocate dynamic memory and free memory in C++ programs malloc/free can not meet the requirements of dynamic objects creation. Object needs to call the constructor to initialize the object when creating, the object needs to call the destructor before it is destroyed  Since malloc() and free() are library functions rather than operators, the compiler has no control permissions on them, so it can not impose the task of object construction and destruction on malloc() and f...

Actually, that's not true - I've produced plenty of open source software over the years.  However, in a sense, it is true: only the very best actually get paid to work on open source software full time, and I'm not one of them.  People like Linus Torvalds.  People like Guido van Rossum, although even he supposedly divides his time, and does not work on Python full-time. Think about that.  Python is a hugely popular programming language used by many companies and individuals who get a lot of value out of it. But the creator doesn't even work on it full-time. Now, that's jus...

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 revealed the top 5 myths and realities about open source software.The first myth is that open source will take o...

WE who love the Internet love the fact that so many people contribute to it. It’s hard to believe that skeptics once worried about whether anyone would have anything worthwhile to say online. There is, however, an outdated brand of digital orthodoxy that ought to be retired. In this worldview, the Internet is a never-ending battle of good guys who love freedom against bad guys like old-fashioned Hollywood media moguls. The bad guys want to strengthen copyright law, and make it impossible to post anonymously copied videos and stories. The proposed Stop Online Piracy Act, or...