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UNIT - I INTRODUCTION TO COMPUTER SYSTEMS

1.1 Introduction to Computer Systems

1.2 Data representation: Number systems, Character representation codes, Binary, hex, octal codes and their interconversions, Binary arithmetic, Floating point arithmetic

1.3 Signed and unsigned numbers, IEEE standards

1.4 CPU organization: ALU, Registers, Memory, The idea of program execution at micro level

1.5 Concept of computing

1.6 Contemporary Operating Systems such as DOS, Windows, UNIX etc. (only brief user level description)

1.7 Introduction to organization and architecture of mainframe, mini and micro systems

UNIT - II ALGORITHM AND PROGRAM

2.1 Concept of flow chart and algorithm

2.2 Algorithms to programs: specification, top-down development and stepwise refinement

2.3 Introduction to the design and implementation of correct, Efficient and maintainable programs, Structured Programming

2.4 Use of high level programming language for the systematic development of programs, Programmability and programming languages, Object codes, Compilers

2.5 Introduction to the Editing tools such as vi or MS-VC editors

UNIT - III C

3.1 C: Data types, Identifiers, Storage class, Constant, Operators, Expression, Statements, Console I/O statements

3.2 Selection statements: if -else, switch

3.3 Iteration Statements: for, while, do-while

3.4 Jump statements, return, goto, break, continue, Comments

3.5 Function, Call by value, Call by reference

3.6 Arguments to main(), Return statements, Recursion, Function prototypes, Preprocessor directives

UNIT - IV ARRAYS, STRINGS, STRUCTURES AND UNIONS

4.1 Arrays: Single dimensional arrays, Two dimensional arrays, Multidimensional arrays, Variable length arrays

4.2 Strings, Array of strings

4.3 Structures: array of structures, Passing structure to function, Structure pointers, Structure within structures

4.4 Unions, Bit fields, Enumerations

UNIT-V POINTERS AND FILE I/O

5.1 Pointers: pointer variables, Pointer operator, Pointer expression

5.2 Array of pointers, multiple indirection

5.3 Pointers to functions, dynamic allocation functions

5.4 File I/O: Streams and files, File system basics, fread, fwrite, fseek, random access I/O, fprintf(), fscanf(), standard streams