What is Program and Programming language?

Program:- 

It is a set of instructions to complete the task. instruction can be mathematical, logical, conditional, and comparison based.

PSEUDO CODE of addition program

a=10

b=20

c=a+b,

display c

Programming language:-

It is a set of codes to create a program practically and load into a compiler or interpreter.
Software is a set of programs and programs will be developed by a set of codes hence programming language is used to develop a software application.


Type of Programming languages:-

1 Based on Execution:-

1.1.1 low level:-  It will be executed directly under the operating system with no need to use any intermediate.

Binary Code

1.1.2  middle level:-  It will be executed by Single Intermediate means compiler or interpreter to convert program code into machine code.

C, CPP, HTML, Assembly code

1.1.3  high level:-  It will be executed by a minimum of Two Intermediate means multiple compiler and interpreter.

Java,.NET, Objective-c, Kotlin, C#, VB,, Python, PHP these all are programming language is the part of high level.

2  Based on Structure

2.1 Structured:-  This type of programming language syntax structure and program flow is pre-define .program will be started by top to bottom or bottom to top approach.

C, CPP,JAVA,PYTHON,PHP


Procedure, Function, Class


2.2 Unstructured:-  This type of programming languages has no proper structure, it can be executed from any position.


COBOL, PASCAL, FORTON, PYTHON, PHP

Without any procedure, function, class