The main purpose of sorting information is to optimise its usefulness for specific tasks. In general, there are two ways of sorting information: by category e.g. a shopping catalogue where items are grouped together under headings such as 'home', 'sport & leisure', 'women's clothes' etc. and in a hierarchy according to some property e.g. from cheapest to most expensive.
They are not likely to be in a hierarchy, rather, they may be in a linear sequence, perhaps of several sorts. Apogr 15:45, 25 Aug 2004 (UTC)
Since computers have become so available what sort of important sorts might we pay attention to? What sort of freeware or payware should we look at?
Optical Sorting Equipment
Why nothing on this? Maybe because it is a machine, and not a process?