Last night I attended the Boca Raton Computer Society, Inc. (BRCS) Hardware / Software SIG. (http://brcs.org/)
One of questions, related to scanners, was: Can someone explain what TWAIN is?
There was no internet access during the SIG, so it could not be looked up. There was a lot of speculation, the consensus being it is a machine language, used to communicate between a scanner and the PC.
I ran a Google Advanced search: what is twain -mark -mark site:.com
Here are some of the results that made some sort of sense to me:
http://www.worldstart.com/tips/tips.php/1209
http://graphicssoft.about.com/od/glossary/f/twain.htm
http://whatis.techtarget.com/definition/0,,sid9_gci213232,00.html
I also found the following through Wikipedia http://en.wikipedia.org/wiki/TWAIN; they are a little more technical:
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I hope this helps anyone needing more knowledge about TWAIN.
If you know of any other information, that may help in understanding TWAIN and what it does, please leave a comment with a link below.