An array is a systematic arrangement of objects, usually in rows and columns. In technology, an array specifically refers to various arrangements of multiple individual components to create a single system, for example, an array in PHP is actually an ordered map. It is a data structure in which similar elements of data are arranged in a table. An array is also a group of elements forming a complete unit, such as a processor array (not to be confused with an array processor), and a Wi-Fi array (a wireless networking device). 

See also : FAWN  
NetLingo Classification: Technical Terms