Data structure tccicomputercoaching com

Data Structure

Tririd Computer Coaching Institute

 A data structure is a specialized format for organizing and storing data.  Data structure is designed to organize data to suit a specific purpose so that it can be accessed

and worked with in appropriate ways.

 Also we can say Data structure is a particular way of storing and organizing information in

a computer so that it can be retrieved and used most productively.

 Data structures can implement one or more particular abstract data types (ADT), which specify

the operations that can be performed on a data structure and the computational complexity of those operations. In comparison, a data structure is a concrete implementation of the specification provided by an ADT.

 Data structures can be used to organize the storage and retrieval of information stored in both main

memory and insecondary memory.

 Data structures provide a means to manage large amounts of data efficiently for uses such as

large databases and internet indexing services. Usually, efficient data structures are key to designing efficient algorithms.

 Data structures are generally based on the ability of a computer to fetch and store data at any place in its

memory, specified by a pointer—a bit string, representing a memory address, that can be itself stored in memory and manipulated by the program.

 Thus, the array and record data structures are based on computing the addresses of data items with arithmetic

operations; while the linked data structures are based on storing addresses of data items within the structure itself. Many data structures use both principles, sometimes combined in non-trivial ways (as in XOR linking).

Data Types in Data Structure:  General data structure Course types include the array, the file, the record, the table, the tree, and so on. Any data structure

is designed to organize data to suit a specific purpose so that it can be accessed and worked with in appropriate ways. In computer programming, a data structure may be selected or designed to store data for the purpose of working on it with various algorithms.  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.

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