Teach you how to use Rails to write web applications. For that, you probably ought to start with Rolling with Ruby on Rails. This is an introduction and road map to the many features of Rails.
This a large book, and your class will probably cover only a portion of its material. We
have tried, however, to make this a book that will be useful to you now as a course textbook
and also later in your career as a mathematical desk reference or an engineering handbook
μC/OS-II Goals
probably the most important goal of μC/OS-II was to make it backward compatible with μC/OS (at least from an
application’s standpoint). A μC/OS port might need to be modified to work with μC/OS-II but at least, the application
code should require only minor changes (if any). Also, because μC/OS-II is based on the same core as μC/OS, it is just
as reliable. I added conditional compilation to allow you to further reduce the amount of RAM (i.e. data space) needed
by μC/OS-II. This is especially useful when you have resource limited products. I also added the feature described in
the previous section and cleaned up the code.
Where the book is concerned, I wanted to clarify some of the concepts described in the first edition and provide
additional explanations about how μC/OS-II works. I had numerous requests about doing a chapter on how to port
μC/OS and thus, such a chapter has been included in this book for μC/OS-II.
Generating Fractals with SSE/SSE2
You probably have heard about fractals before. They are beautiful pictures such as the one shown above. Any fractal can be described using iterative formulas. So you can generate a fractal by evaluating these formulas and finding the color of each pixel. That is a large computational task, and drawing a fractal needs a fast CPU and a carefully optimized program.
During your career as a Software Designer/Programmer you will probably encounter the need to use Objects in run-time without knowing much about them in design-time. Java enables this with Reflection.
I ll probably write up a short article next week outlining how the ActionScript works, so people can modify it, and work with it more easily in Flex.
You can download the component and source code here. There are some instructions in the FLA on how to use it. Note that this is not a compiled component, so it won t show up in the components panel. You will have to copy the component, and the source file into your project. If anyone really wants a compiled version, let me know and I can provide one.
As always, I d love to hear how people use it, and would appreciate it if you would post back to the comments if you make any significant modifications so that other people can benefit from them.
Want to try a copy of Linux 2.6.29-rc5 in progess with Angstom and Opie? Opie probably isn t good for much but testing but it is kind of fun. This has a very slow boot, which is much improved since this NAND image was made.
NAND image of Linux 2.6.9-rc5 with Angstrom and Opie for test.
Download file.
Set to NOR and power on.
Install using the vivi command "Restore NAND Flash from HOST thru USB"
Turn off, set to NAND, turn on. Enjoy.
Imagine that you are a web developer (which is probably not a stretch if you are reading
this book) and you are being encouraged to add some Ajax features to a site you’re
working on. Maybe the originator of this request is your boss or your boss’s boss, who is
not even sure what Ajax is, let alone what kinds of features might be useful.And maybe
you’re not sure yourself. Imagine that your prior experience has mostly been on the
server-side, developing in Java or some other server-side technology, and your experience
with HTML and JavaScript has been fairly limited.This is the scenario we will explore
over the next several chapters as you are introduced to the Dojo Toolkit.
Since the field of object oriented programming is probably new to you, you will find that there is a significant amount of new terminology for you to grasp. This is true of any new endeavor and you should be warned not to be intimidated by all of the new concepts.
