Data and Data Types

Definition of Data

  • Data Definition describes a specific piece of data that has the following characteristics.
  • Atomic Definition should only define one concept.
  • Traceable Definition should be mappable to some data element.
  • The definition should be unambiguous.
  • A concise and clear definition should be understandable.

Data Object: A data object is an object that contains data.

Data Format :
A data type is a way of categorizing various types of data such as integer, string, and so on, and it determines the values that can be used with the corresponding type of data as well as the types of operations that can be performed on the corresponding type of data. There are two kinds of data types:

(i) Built in Data Type
(ii) Derived Data Type

Built-In Data Type:
Built-in Data types are data types for which a language has built-in support. Most programming languages, for example, include the succeeding built-in data types.

  • Integers
  • Boolean (true, false)
  • Floating (Decimal numbers)
  • Character and Strings

Derived Data- Type:

Derived data types are those that are implementation independent in the sense that they can be incorporated in one of two ways. These data types are typically created by combining primary or built-in data types with associated operations on them.

  • List
  • Array
  • Stack
  • Queue

Types of Operations :

Certain operations are performed on the information contained within the data structures. The data structure chosen is largely determined by the frequency with which the operation must be asked to perform on the data structure.

  • Traversing
  • Searching
  • Insertion
  • Deletion
  • Sorting
  • Merging

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