e-Lecture on C Programming
for
B.Sc. Second Semester
Paper code: 201
Dr. Rajesh Kumar Goutam
Assistant Professor
Department of Computer Science
University of Lucknow
1
, Introduction
• C programming language was developed in 1972
by Dennis Ritchie at bell laboratories of AT&T
(American Telephone & Telegraph), located in the
U.S.A..
• It was initially designed for programming in UNIX
operating system.
• Now the software tool as well as the C compiler is
written in C. Major parts of popular operating
systems like Windows, UNIX, Linux is still written
in C.
2
, Features of C Programming Language:
• C is one of the most popular languages used today.
• C is a robust programming with an impressive set of built-in functions and
a variety of operators which you can use to write any complex program.
• C programs are fast and efficient. This is because C uses a powerful set of
data types and operators.
• C combines the power and capability of assembly language with the user
friendly features of a high-level language.
• C is the most widely used older programming language. It continues to go
strong while older programming languages such as BASIC and COBOL have
been virtually forgotten.
• C is very much portable, which means programs written on a machine
using C can be used on other machines as well without any modification.
• A C program consists of a number of functions that are supported by C
library. In fact, you can create your own function, which can then be added
to the C library.
3
for
B.Sc. Second Semester
Paper code: 201
Dr. Rajesh Kumar Goutam
Assistant Professor
Department of Computer Science
University of Lucknow
1
, Introduction
• C programming language was developed in 1972
by Dennis Ritchie at bell laboratories of AT&T
(American Telephone & Telegraph), located in the
U.S.A..
• It was initially designed for programming in UNIX
operating system.
• Now the software tool as well as the C compiler is
written in C. Major parts of popular operating
systems like Windows, UNIX, Linux is still written
in C.
2
, Features of C Programming Language:
• C is one of the most popular languages used today.
• C is a robust programming with an impressive set of built-in functions and
a variety of operators which you can use to write any complex program.
• C programs are fast and efficient. This is because C uses a powerful set of
data types and operators.
• C combines the power and capability of assembly language with the user
friendly features of a high-level language.
• C is the most widely used older programming language. It continues to go
strong while older programming languages such as BASIC and COBOL have
been virtually forgotten.
• C is very much portable, which means programs written on a machine
using C can be used on other machines as well without any modification.
• A C program consists of a number of functions that are supported by C
library. In fact, you can create your own function, which can then be added
to the C library.
3
