Today, I listened a talk from TechEd 2006.
They mentioned TDD.
Well, I did a search in Wikipedia too.
http://en.wikipedia.org/wiki/Test-driven_development

This is quite interesting ,Test-Driven Development. Writing the test cases and then only implement the codes for the cases. It sounds like a kind of hacking the code.

I have installed to two instances of egroupware.
One is on the server in web hosting company, this is using PHP 4.33.
Sometime, it will have HTTP 500 errror.
But in my PHP 5.1 server, that is complete good.

This week learning program is the networking library in C#. I aimed to write a ftp client.

I have done a google search on crypto topic.
Some examples are saying to CryptoStream(outStream,
TripleDESCryptoServiceProvider.CreateDecryptor(),CryptoStreamMode.Write) and then write chirp text into this stream. They are saying it will be decrypted. But this doesn't work for me. I used CryptoStream(inputStream,
TripleDESCryptoServiceProvider.CreateDecryptor(),CryptoStreamMode.Read) reads the chirp text and then writes into an output stream. That works!

Apple II History
http://en.wikipedia.org/wiki/Apple_II_series