 Because the U.S. military required a way to represent Vietnamese scripts accurately on official documents, VIQR was invented for the military.Due to its longstanding use, VIQR was a natural choice for computer word processing, prior to the appearance of VNI, VPSKeys, VSCII, VISCII, and Unicode.It is still widely used for information exchange on computers, but is not desirable for design and layout, due to its cryptic appearance.