An ordered set is a collection of distinct elements where the arrangement of these elements matters. Unlike regular sets, where the order is irrelevant, ordered sets maintain a specific sequence. This means that the same elements in a different order are considered different ordered sets. In mathematics and computer science, ordered sets are often implemented using data structures like lists or arrays. They are useful in various applications, such as maintaining a sequence of tasks or organizing data in a specific order. Examples of ordered sets include sequences, tuples, and lists in programming languages like Python or Java.