This book is suitable for anyone wishing to gain a good fundamental understanding of the key features of the QNX Neutrino RTOS and how it works. Readers with a modest computer background should still get a lot out of the book (although the discussion in each chapter gets more and more technical as the chapter progresses). Even diehard hackers should find some interesting twists, especially with the two fundamental features of QNX Neutrino, the message-passing nature of the operating system and the way device drivers are structured.
I've tried to explain things in an easy-to-read “conversational” style, anticipating some of the common questions that come up and answering them with examples and diagrams. Because a complete understanding of the C language isn't required, but is definitely an asset, there are quite a few code samples sprinkled throughout.