Elementary Data Organization in Data structure


Data represents a single value or a set of values assigned to entities. Data item refers a single or group of values with in the data


An entity is a thing that has some properties which can take values


Processed or meaning full data is called information. This is used for taking some action

Primitive data types

  • These are the data structures which are directly supported by the machine. i.e. Any operation can be performed in these data items
  • The different primitive data types are
    • Integer
    • Float
    • Double
    • Character
    • boolean

Non Primitive data types

  • These Data structures do not allow any specific instructions to be performed on the Data items directly
  • The different non primitive data types are
    • Arrays
    • Structures
    • Unions
    • Class etc.

Data structure

  • A data structure is an arrangement of data in a computer’s memory or even disk storage. An example of several common data structures are arrays, linked lists, queues, stacks, binary trees, and hash tables
  • Algorithms, on the other hand, are used to manipulate the data contained in these data structures as in searching and sorting. Many algorithms apply directly to a specific data structures
  • When working with certain data structures you need to know how to insert new data, search for a specified item, and deleting a specific item
  • Commonly used algorithms include are useful for:
    • Searching for a particular data item (or record).
    • Sorting the data. There are many ways to sort data. Simple sorting, Advanced sorting
    • Iterating through all the items in a data structure. (Visiting each item in turn so as to display it or perform some other action on these items)
Data structure
Data structure


  • There are two types of data structure. They are
    • Linear Data structures
    • Non-Linear Data structures

Linear Data structures

  • This Data Structures involve arranging the elements in Linear fashion.
  • Eg.
    • Stacks
    • Queue
    • Lists

Non-Linear Data structures

  • This Data structures involve representing the elements in Hierarchical order.
  • Eg:
    • Trees
    • Graphs

Data structure operations

  • Operation means processing the data in the data structure. The following are some important operations.
    • Traversing
    • Searching
    • Inserting
    • Deleting
    • Sorting
    • Merging


  • Traversing
    • To visit or process each data exactly once in the data structure
  • Searching
    • To search for a particular value in the data structure for the given key value
  • Inserting
    • To add a new value to the data structure


  • Deleting
    • To remove a value from the data structure
  • Sorting
    • To arrange the values in the data structure in a particular order.
  • Merging
    • To join two same type of data structure values

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