Introduction to C Programming.

1. Introduction to C
Programming
NOUROZ
LIAQUAT

2. What is C?
 C is a programming language that developed at
AT&T(American Telephone and Telegraph) Bell Labs of USA
in 1972.
 It was designed and written by man named Dennis Ritchie.
 C is high level programming language.
 C is highly portable language.

3. Why Use C?
 C is initially used as a system development work, in
particularly the programs make-up of the operating system.
 C adopted as a system development language because of it
produce code that nearly fast as the code written in assembly
language.
 We use C because it is reliable sample and easy to use.
 C is general purpose language because of it popularity with
programmer.

4.  Some examples of uses of c might be:
 Operating system
 Language complier
 Language interpreter
 Assemblers
 Text editor
 Print spoolers
 Network drivers
 Modern program
 Data bases
 Utilities

5. History of C?
 C evolved from a language called B.
 B written by Ken Thompson at Bell Labs in 1970.
 Ken Thompson used B to write one of the first
implementation of UNIX.
 B evolved from a language BCPL developed at Cambridge
UK in 1967.
 Many instruction removed from BCPL to B that Dennis
Ritchie developed C language at Bell labs USA in 1972.
 Dennis Ritchie known as founder of C language.
 It was developed to be used in UNIX operating system.

6.  The famous book “The C programming Language” was
written by Kernighan and Ritchie in 1978, and was the
definite reference book on c.
 In 1983, the American National Standard Institute (ANSI)
established a committee to provide a modern comprehensive
definition of c.
 The resulting definition, the ANSI C was completed late 1988.