The full Internet address of a page or other World Wide Web resource. A hyperlink that is currently selected in a Web browser.
Some Web browsers indicate the active hyperlink by changing color.
Similar retouching can be performed digitally with the use of image-manipulation software. Pictures on your computer monitor are made up of square pixels. When the edge of a solid colored object in a GIF image is a diagonal or curved line, and it is displayed against a contrasting color, the edges appear jagged, like stair steps. This jagged appearance is called aliasing. The jagged appearance can be softened by filling in adjacent pixels with intermediate colors between the object and the background.