College ERP-LMS Software

UNIT - I

1	Introduction to Programming in C
1.1	History
1.2	Compilers and Interpreters
1.3	Algorithms
1.4	Flowcharts
1.5	Structure of a C program
1.6	C Tokens
1.6.1	Keywords
1.6.2	Variables
1.6.3	Primary Data types
1.6.4	Operators
1.7	Formatted I/O Statement
1.8	Unformatted I/O Statement

UNIT - II

2	Controlling Statement
2.1	Decision Making Statement
2.1.1	If Statement
2.1.2	If- else Statement
2.1.3	Nested if –else Statement
2.1.4	Else if Ladder Statement
2.1.5	Switch Statement
2.2	Loop Statement
2.2.1	For Loop
2.2.2	While Loop
2.2.3	Do-while Loop
2.2.4	Nested for Loop
2.3	Break, goto and Continue

UNIT - III

3	Function in C
3.1	Functions in C
3.2	What is a function?
3.3	User defined functions
3.3.1	Declaration
3.3.2	Definition
3.3.3	Function calling
3.4	Recursion

UNIT - IV

4	Array and Structure
4.1	Arrays
4.2	Array declaration, initialization
4.3	One dimensional Array
4.4	Two dimensional Array
4.5	Standard String library functions
4.6	Creating structures
4.7	Accessing structure members (dot Operator)
4.8	Unions

Introduction to Programming in C

1.1 History

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.

Dennis Ritchie is known as the founder of the c language.

It was developed to overcome the problems of previous languages such as B, BCPL, etc.

Initially, C language was developed to be used in UNIX operating system. It inherits many features of previous languages such as B and BCPL.

1. C99 standard guarantees uniqueness of __________ characters forinternalnames.

31
63
12
14

2. C99 standard guarantees uniqueness of ___________ characters for externalnames.

31
6
12
14

1.2 Compilers and Interpreters

A compiler is a translator which transforms source language (high-level language) into object language (machine language). In contrast with a compiler, an interpreter is a program which imitates the execution of programs written in a source language. Another difference between Compiler and interpreter is that Compiler converts the whole program in one go on the other hand Interpreter converts the program by taking a single line at a time.

Evidently, the perceivability of humans and an electronic device like a computer is different. Humans can understand anything through the natural languages, but a computer doesn’t. The computer needs a translator to convert the languages written in the human readable form to the computer readable form.

Compiler and interpreter are the types of language translator. What is Language translator? This question might be arising in your mind.

A language translator is a software which translates the programs from a source language that are in human readable form into an equivalent program in an object language. The source language is generally a high-level programming language, and the object language is typically the machine language of an actual computer.