This document discusses computers and computer programming languages. It provides background on computers, defining them as electronic devices that perform calculations and logical operations numerically. It then covers assembly language and high-level languages like C, their history, advantages, and basic syntax. It gives an example "Hello World" C program and describes how to compile and run a basic C program.

2. COMPUTER
IT IS AN ELECTRONIC DEVICE FOR MAKING CALCULATION AND CONTROLLING
OPERATION THAT ARE EXPRESSIBLE IN NUMERICAL AND LOGICAL TERMS.
Analytical Engine
It was a mechanical machine.
Jon Von-Neuman
Binary Bit – 1 (0.5 v) , 0 (Null)
0-1,A-Z,a-z,special symbol(.,+-……)=256

3. ASSEMBLY LANGUAGE
• ASCII ( AMERICAN STANDARD CODE FOR INFORMATION INTERCHANGE).
• ANSI (AMERICAN NATION STANDARD INSTITUTE).
• AT & T ( AMERICAN TELEPHONIC AND TELEGRAPHIC LABORATION).
It works as a Translator
 Assembler
 Editor
 Linker
 Loader

4. HIGH LEVEL LANGUAGE
B WAS THE FIRST HIGH LEVEL PROGRAMMING LANGUAGE. IT WAS
DEVELOPED IN 1970. C LANGUAGE WAS IN 1972 IN AT & T LAB AT ANSI OF
CALIFORNIA DEVELOPED BY DENNIS RITCHIE.
EXAMPLE OF HIGH LEVEL LANGUAGE ARE COBOL,FORTRAN,BASIC,C AND C++.
ADVANTAGES OF HIGH LEVEL LANGUAGE
•FAST PROGRAM DEVELOPMENT.
•TESTING AND DEBUGGING A PROGRAM IS EASIER THAN IN THE
ASSEMBLY LANGUAGE.
•PORTABILITY OF A PROGRAM FROM ONE MACHINE TO ANOTHER.

5. IT IS A HIGH LEVEL PROGRAMMING LANGUAGE.
ALL THE SYNTAX OF C LANGUAGE IS WRITTEN IN THE SMALL ALPHABET
LETTER.
THE COMPILER OF C LANGUAGE IS KNOWN AS TURBO C2, BUT ITS CURRENT
VERSION TURBO C3.
C IS A HIGH LEVEL PROGRAMMING LANGUAGE AS WELL AS KNOWN AS
MIDDLE LEVEL PROGRAMMING LANGUAGE.
IT FOLLOWS TOP TO DOWN PROGRAMMING APPROACH.
TURBO C2 INCLUDES LINKER , LOADER , EDITOR , COMPILER.

6. #include<stdio.h>
void main()
{
printf(“hello world”);
printf(“welcome to my
first program”);
getch();
}
EXAMPLE

7. DESCRIPTION OF ABOVE EXAMPLES:-
#include – PRE PROCESSOR DIRECTORY
<stdio.h> - HEADER FILE
printf – LIBRARY FUNCTION, USED TO PRINT THE MESSAGE ON THE OUTPUT
SCREEN.
TO SAVE – PRESS ALT+F THEN CLICK SAVE AS AND SAVE THE FILE AS
FILENAME.C .
.C – DOT C IS THE EXTENSION OF C PROGRAMS.
TO COMPILE – ALT + F9
TO EXECUTE / RUN – ALT + F5
getch() – IT IS ALSO A LIBRARY FUNCTION USED TO HOLD THE OUTPUT
SCREEN.

8. THANK YOU
IF YOU LIKE MY PRESENTATION THEN I WILL UPLOAD MY PART 2 AS SOON AS POSSIBLE WITH FULL
NOTES AND EXAMPLES OF PROGRAMMING