Data structure is a particular way of storing and organizing information in a computer so that it can be retrieved and used most productively.
Different kinds of data structures are meant for different kinds of applications, and some are highly specialized to specific tasks.
Data structures are important for the following reasons:
1. Data structures are used in almost every program or software system.
2. Specific data structures are essential ingredients of many efficient algorithms, and make possible the management of huge amounts of data, such as large integrated collection of databases.
3. Some programming languages emphasize data structures, rather than algorithms, as the key organizing factor in software design.