What is TWAIN?

What is TWAIN?
Twain is the interface standard for Windows and Macintosh that allows imaging hardware devices (such as scanners and digital cameras) to communicate with image processing software. Prior to TWAIN, image acquisition devices all came with their own proprietary software. If you wanted to work with a scanned image in a different application, you had to save the image to disk first, then open the application of your choice and re-open the image there.	The TWAIN Working Group is a not-for-profit organization which represents the imaging industry. TWAIN’s purpose is to provide and foster a universal public standard which links applications and image acquisition devices. The ongoing mission of this organization is to continue to enhance the standard to accommodate future technologies.
“Acquire” command provides access to any TWAIN hardware devices installed on the system. Although the software appearance and capabilities for each device can vary, the TWAIN Acquire command calls up the hardware interfacing software, and places the acquired image into the image processing software, without the need for the image to first be saved to disk.
Nearly all image processing software today is TWAIN compliant. If your software supports	TWAIN is not an acronym at all:
Now I planned to develop .net and  Java Interface for TWAIN .