Aliasing
From The Glossary of Digital Photography
Has two meanings that are important in digital photography. (1) Sampling errors can cause unwanted effects in images, such as the jaggies or stair-stepping, of straight, usually diagonal, lines, and moire patterns. There is a technique known as anti-aliasing, which helps deal with some of these situations by applying a slight blurring effect. (2) An 'alias' of a program or file can be placed on the desktop of a computer even though the actual file resides on a different disk. This is done by placing an icon on the computer that links to the location where the file or folder is stored. This can help speed up workflow for the photographer who does not have to search to find his favorite tools. Merely clicking or double-clicking on the 'alias' opens the desired file
or folder. See also anti-aliasing
