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Information, Computation and Programming Archives

January 1, 0001

NintendoDS.jpg Cell-Processor.jpg This category and this category in the Japanese version of my blog contains topics on calculations using computers and computer programming. The upper category is Blog from Kanada.

For topics on Database and Stream Processing, Operating systems, and Programming and Compilers, look at the subcategory pages.

BTW, as shown on the top of the category page, the submission date of this page is intentionally set 0001-01-01 00:00:00. However, the actual submission date is 2009-01-18 13:22:03.

To keep the page light, I exclude photos in individual pages from the archive page. Instead, I inserted some of them here.


September 30, 2006

At the end of 2003, I made a web page titled SSIP Communicator. The SSIP Communicator was a program written by Java, and it was for character-based dialogue (conversation between two persons). It was not a practical program but for education in my company. I am not sure if it was successful because I used it only once. However, I like it because it is a pretty small and well-structured communication program. Recently, a protocol called SIP (Session Initiation Protocol) is used for IP telephony, video conferencing, and so on. SSIP is a similar to but much simpler than SIP.

In companies, new commers are often involved in handling complicated programs, and they may fail to grasp whole program. When I start a new project, I usually start with a program as simple as possible, and try to grasp whole system. In SSIP, I intended to try this type of practice in a protocol for conversations. It became a longer program than I had expected, but it must be shorter than other similar programs (though I was not sure if there are similar programs). The program is free to use. I hope people will use this.


In 1996, I wrote a simple calculator as study program. This is a calculator only for four basic operations (i.e., "+", "-", "*", "/"). However, it is different from normal calculators; it does not evaluate the expression until you enter "=". I feel relieved because I can find error inputs easier. JavaScript is now used everywhere, but I think this program is a more educational because it is simpler and you can see the behavior of this program more easily.

October 21, 2006

TBD. [... Text editors are powerful tools for programming and for creating contents. ...]


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