TWAIN is a standard interface for scanning equipment. It was developed in 1992 by the TWAIN consortium consisting of representatives from Aldus, Caere, Eastman, Kodak, Hewlett Packard and Logitech. The TWAIN standard enables multiple computer software programs. Today, most computer scanners include a TWAIN, TWAIN32 or compliant driver that enables the scanner to work with most computer programs automatically after they have been installed.
Sometimes TWAIN is incorrectly referred to as technology without an interesting name, TWAIN is from Kipling's poem "The Ballard of East and West" - "...and never the twain shall meet...". Therefore, it is important to realize that TWAIN is not an acronym, but could be considered a backronym.