• The root of all modern programming language is ALGO, it is introduced in 1960. ALGO gave the new concept of the structure programming. Subsequently varies languages are announced.
•
In 1967 Martin Richards developed a language
called BCPL( Basic Combined Programming Language) .
•
In 1970, Ken Thompson created a language
using many features of BCPL and it simply called B language.
Both
BCPL and B was “type less” system programming language.
C language was developed by Dennis Ritchie at the Bell
Laboratories in 1972. C language uses many features of the ALGO, BCPL and B
Languages. It also added new concepts of the “data type” and many powerful
features. Unix operating system is totally coded in C language.
•
In 1983 American National Standard Institute
(ANSI) appoint a technical committee to define
a standard of C.
•
The committee approved a version of c in
December 1989 which is now known as ANSI C
•
It was the approved by the International
Standards Organization (ISO) in 1990.This version of the c is also referred as
C89
Importance of the C language:
•
It is Robust Language. It’s rich set of bit
in function and operator can be used to write any complex program.
• The C Compiler combines the features of the assembly language and high level language so it is suitable for both system software and business package.
•
Programs written in C languages are very
efficient and fast because of its
variety of data types and powerful operators.
•
There are several inbuilt functions which is
used to build any program.
•
There are 32 keywords in C Which is used to
make the program.
•
C is highly portable language.
•
C language is suitable for structure
programming. This modular structure makes program debugging, testing and
maintenance easier.
•
The ability to extend itself. It means we can
add our own functions into the c library
Sample Program for C language to print hello.
/* Write the Program to Print the Hello */
#include<stdio.h>
#include<conio.h>
void
main()
{
clrscr();
printf
(“Hello world”);
getch();
}
Alt + f9 -> To compile the program
Ctrl + f9 -> To run the program
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