CentOS (short for Community ENTerprise Operating System) is a free, open-source, enterprise-class and community-supported computing platform that derived from the same source code with Red Hat Enterprise Linux OS. At present, there have been increasing Internet services or applications around the world that require high stability (including a variety of purposes of servers and business applications) are running on it, rather than RHEL.

The Mind Map Book is a classic bestseller written by Tony Buzan - inventor of Mind Map, founder of World Memory Championships, originator of World Speed Reading Tournament, organizer of Mind Sports Olympiad, world's super writer, top speaker in the brain and learning aspects, and global public media figure. All other relevant books were written based on it, and many of the authors are just the students of Tony Buzan around the world.

C programming language is the only most basic computer language that every programmer should get started with and master. As a common sense, you should know: C language is also the fundamental language of many important programming languages, including Microsoft's C#, Apple's Objective-C, C++ which is widely used in many environments, Linux operating system and its many functions, and so on.

Ruby is a simple and fast object-oriented programming scripting language that is obviously younger than other similar programming languages (such like Perl or Python). It was written by Yukihiro Matsumoto from Japan (started in 1993 and finished in 1995). The inspiration and characteristics of Ruby are mainly from Perl, Squeak/Smalltalk, Eiffel, Ada and Lisp programming languages.

Don't doubt what can be done, learned in short 10 minutes. Actually, Sams Teach Yourself's In 10 Minutes series of books had proved this point. In 10 minutes, we can master a lot of practical technologies.