(ADTs)
Introduction
Data structures are the building blocks of any computer program, providing a way to organize,
manage, and store data efficiently.
They are crucial for the design and implementation of algorithms, which are the procedures used
to manipulate data.
The foundation of data structures lies in the concepts of variables and data types, which are the
basic units of data storage and manipulation in computer systems.
As the complexity of data grows, so does the need for more sophisticated ways to represent and
work with it, leading to the development of abstract data types (ADTs).
Variables and Data Types
A variable is a named location in a computer's memory that holds a value. Variables are
fundamental to computer programming as they allow data to be stored and manipulated in a
program.
The type of data a variable can hold is determined by its data type.
Data types are predefined categories that describe the kinds of values that can be stored in a
variable.
Common data types include integers, floating-point numbers, characters, and strings.
Data types can be divided into two main categories: primitive and composite. Primitive data
types are the most basic types, such as integers, floats, and booleans.
They are typically built into the programming language and cannot be broken down into smaller
parts.
Composite data types, on the other hand, are constructed from primitive types and can represent
more complex data structures like arrays, lists, and records.
For example, an integer variable 'x' can store a whole number, a float variable 'y' can store a
decimal number, and a string variable 'name' can store a sequence of characters.
The choice of data type for a variable is determined by the kind of data it will hold and the
operations that will be performed on it.
Data Structures