Altitude-Longitudinal Index

An altitude-longitudinal index is a multi-tier table containing either a link to a page on the Internet or other additional information (for example, exponents of a power function) with an index represented by two of its components: height and longitudinal reference. This pointer was invented by G.F. Lovelace in 1946. He used three methods of organizing information in the form of different types of punched cards. In 1954, the organization system was patented