Unit III notes for Logic Development and Programming (EC221)

1. -Dr. Piyush Charan
Assistant Professor, Dept of ECE,
Integral University, Lucknow
Unit-III Programming
using C/C++

2. EC221 Logic Development and Programming: Unit III/ Slide 2
Objectives
 To learn fundamental problem solving
techniques
 To learn how to design a program
 To learn to use the C++ programming
language

3. EC221 Logic Development and Programming: Unit III/ Slide 3
What is C++?
 C++ is a programming language.
 A computer program performs a specific task, and
may interact with the user and the computer
hardware.
 Human work model:
 Computer work model:

4. EC221 Logic Development and Programming: Unit III/ Slide 4
What is C/C++?
 The most popular programming languages:
 Basic (Beginner All-purpose Symbolic Instructional Code)
 C++ (an object-oriented language, based on C)
 Cobol (Common Business Oriented Language)
 Fortran (FORmula TRANslation)
 Java
 Pascal (named for Blaise Pascal)
 Visual Basic (Basic-like visual language developed by Microsoft)
 C (developed by the designer of the B language)
 The most common versions of C++:
 Microsoft VC++2008
 Eclipse
 g++ (for Unix machines)

5. EC221 Logic Development and Programming: Unit III/ Slide 5
Why C/C++?
 Bad News:
 C++ is not easy to learn
 Good News:
 Lots of good-paying jobs for programmers because
C/C++ is not easy to learn!
 Java uses C++ syntax, it is easy to learn Java if
you know C++.
 Though C++ is not the easiest language (Basic
and Pascal are easier), it is not the hardest either
(Ada, Prolog and Assembly languages are really
difficult!)

6. EC221 Logic Development and Programming: Unit III/ Slide 6
Who Uses C/C++?
 Computer makers such as TCS, Microsoft, IBM, Infosys
and HP
 Airport
 Computer chip manufacturers
like Motorola & Intel
 Software companies
 Banks
 Government
 Hospital Authority
 Telecommunications
 Universities

7. EC221 Logic Development and Programming: Unit III/ Slide 7
Most Important Feature of C/C++
 Most important feature of C++: its strong and
efficient support of both Structured Programming
and Object-Oriented Programming.
 C/C++ runs on:
 PC
 Macintosh
 Unix workstations (also, Unix versions of C++
are free!)
 supercomputers

8. EC221 Logic Development and Programming: Unit III/ Slide 8
What Can We Do
By the End of the Course?
 Program the computer in applications
such as the following:
 Program a simple calculator
 Program simple computer games
 Program a simple text editor
 Program a small inventory system for a
small company
 You will be ready to take on part-time
programming jobs by the end of the semester!