Programming involves writing instructions for a computer in a coded language. Some of the earliest programming languages included FORTRAN from 1954 for scientific computing, Pascal from 1970 for teaching, and C from 1978 which is still widely used today. Programming languages can be classified as machine language, assembly language, or high-level languages. C is a powerful general-purpose language that is fast, portable, and available on all platforms. It uses header files, functions like printf and scanf, and data types like integers, floats, and characters. Programs written in C can produce logical errors with incorrect outputs or crash due to syntax errors in the code.

1. COMPUTER
PROGRAMMING
What is Programming?
Programming is a creative process that
instructs a computer on how to do a task.
Find out more about the different types of
programming.

2. WHAT IS A PROGRAMMING LANGUAGE?
 Coded language used by programmers to
write instructions that a computer can
understand to do what the programmer

3. HISTORY OF PROGRAMMING LANGUAGE
1954 - FORTRAN ("Formula Translation“)
Hello , World!
Source code Output
is a general-purpose, imperative programming language that is
especially suited to numeric computation and scientific computing.

4. 1970 - Pascal
a high-level structured computer programming language
used for teaching and general programming.
Hello World
Source code Output

5. 1983 - C++
Source code
Hello World
Output
is a general-purpose programming language. It has imperative,
object-oriented and generic programming features, while also
providing facilities for low-level memory manipulation.

6. C - 1978
is a powerful general-purpose programming
language. It is fast, portable and available in all
platforms.
Hello World
Source code
Output

7. 1991 – Java
Source code
Hello , World
Output
a general-purpose computer programming language designed to
produce programs that will run on any computer system.

8. THERE ARE THREE MAIN KINDS OF
PROGRAMMING LANGUAGE:
 Machine language.
 Assembly language.
 High-level language.

9. C PROGRAMMING LANGUAGE
Input output Libraries
Header File
#include<stdio.h>
Functions
Printf()
Scanf()
#include<conio.h>
Functions
Getch()
Textcolor()
Textbackground()

10. Main()
{
//Data types Declaration
Type
Keyword
Boolean = Bool
Integer = int
Floating point = float
Character =
char
//Variables Declaration
Variables are part of almost every program
A variable is a “place to put data” and is
usually represented by a letter or a word.

11. EXAMPLE 1 – A SIMPLE PAYROLL PROGRAM
A Simple Payroll Program
Output
Name:
Basic
Pay:Tax :
Net
Pay:
Joemarie
5,000
500
4,500

12. THE CORRESPONDING C PROGRAM
#include<stdio.h>
#include<conio.h>
main()
{
// Data Types and Variable Declaration
char name;
int basicpay,tax,netpay;
printf("A Simple Payroll Programn");
printf("Name:");scanf("%s",&name);
printf(" basicpay :");scanf("%d",&basicpay);
printf("Tax:");scanf("%d",&tax);
// formula
netpay=basicpay-tax;
printf("Net Pay: %d",netpay);
getch();
}

13. Example 2 – A simple Payroll Program using If
Statement
A Simple Payroll Program
Name:
Basic Pay:
Tax :
Net
Pay:
Key in Employee's Data
Employee's
Code:
Joemarie
a
5,000
500
4,500

14. THE CORRESPONDING C PROGRAM USING IF STATEMENT
#include<stdio.h>
#include<conio.h>
main()
{
// Data Tpyes and Variable Declaration
char name;
char empcode;
int basicpay,tax,netpay;
printf(" A Simple Payroll Programn");
printf(" Key in Employee's Datan");
printf("Name:");scanf("%s",&name);
printf("Employee's Code:");scanf("%s",&empcode);
if(empcode=='a')
basicpay=5000;
else if(empcode=='b')
basicpay=6000;
else if(empcode=='c')
basicpay=7000;
else if(empcode=='d')
basicpay=8000;
else if(empcode=='e')
basicpay=9000;
printf("Basic Pay: %d",basicpay);
printf("n");
printf("Tax:");scanf("%d",&tax);
// formula
netpay=basicpay-tax;
printf("Net Pay: %d",netpay);
getch();
}

15. LOGICAL ERROR
is a mistake in a program's source code that results in
incorrect or unexpected behavior.
It is a type of runtime error that may simply produce the
wrong output or may cause a program to crash while
running
SYNTAX ERROR
A syntax error is an error in the source code
of a program.

16. Assignment