Introduction to
Programming using C
(IT1001)
Instructor
Dr. Vinod Kumar Jain
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Me: Dr. Vinod Kumar Jain
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• Assistant Professor and Head of CSE
Discipline at IIITDM Jabalpur
• Education – PhD (IIITM, Gwalior), M Tech
(NIT Raipur)
• Research Interests: Wireless Networks,
WSN, Location Estimation, Machine
Learning,
• Publications – More than 30 in Reputed
Journals and Conferences
• Guided 5 PhDs and 12 M tech Students
• PI and Co-PI of many Sponsored Research
and Consultancy Projects
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IT1001-Introduction to Programming using C
(Dr. V. K. Jain)
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Course Info.
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Dr Salman Ali
AlQahtani
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Course: “Introduction to Programming using C”
Course Code: IT1001
Tentative Time-Table:
Batch
Lecture-1
Lecture-2
Lab
A
Wednesday (11:00
AM to 12:00 PM)L206
Thursday (12:00 PM Tuesday (02:00 PMto 01:00 PM)-L206 05:00 PM)-CC FF Lab
B
Monday (11:00 AM
to 12:00 PM)-L106
Tuesday (10:00 AM
to 11:00 AM)-L106
Monday (02:00 PM05:00 PM) -CC FF Lab
Instructor: Dr. Vinod Kumar Jain
Email: vkjain@iiitdmj.ac.in
Course Page: https://sites.google.com/view/dr-vinod-kumar-jain/home
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Objectives
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To provide a conceptual understanding of
computers and their working.
To provide basic programming skills.
At the end of the course, the student is supposed to
write a moderately complex C program.
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IT1001-Introduction to Programming using C
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References/Books
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Dr Salman Ali
AlQahtani
Text Book:
1.Programming in ANSI C – E Balagurusamy, 8th edition, McGraw Hill.
2.“The C - Programming Language” -- Kernighan and Ritchie
Reference Book:
1. “Let Us C” --- Yashwanth Kanitkar.
2. “Mastering C” -- Venugopal and Prasad
3. “Exploring C” --- Yashwanth Kanitkar.
4. You may follow any other standard ANSI C book.
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Assesments
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Dr Salman Ali
AlQahtani
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Assesment
Weightage
Description
Quizzes
20%
Two Quizzes (Schedule will be announced in
classes )
Midterm Exam
20%
Dates as per Academic Calendar
Major Exam
30%
Dates as per Academic Calendar
Lab
25%
There will be two exams (Midsem and Endsem) and
regular evaluations in each lab
Class Participation
05%
Based on attendance and performance in the class
interactions
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IT1001-Introduction to Programming using C
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How the courses are run?
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There are nearly 10 Teaching Assistants(TAs),
who are M.Tech and PhD students.
TAs will primarily help you in the Lab. Part.
Students for IT1001 is divided into 02
batches for theory and 02 batches for lab.
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Lab. Part
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Use preferably Linux Operating System.
❑ [ Avoid Microsoft windows ! ]
Use ANSI C (Standard C).
Use “vi” or “vim” editor for creating your files.
Lab experiments starts from 21 August 2023.
A brief about the 1st exercise will be given
towards the end of this class.
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IT1001-Introduction to Programming using C
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Policies, Guidelines,…
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Questions in the examinations will be from
what I teach in the class.
Ask your doubts and questions to me. Do not
discuss in the class with your friends.
Attendance for Lab part is also important and
will be counted.
Grading will be strictly according to your
performance, attendance etc.
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What is a Computer?
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• The word computer comes from the word
“compute”, which means, “to calculate”
• Thereby,
is an electronic device that
What aiscomputer
a
can perform arithmetic operations at high speed
Computer?
• A computer is also called a data processor
because it can store, process, and retrieve data
whenever desired.
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IT1001-Introduction to Programming using C
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What is a Computer?
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Almost all electronic gadgets today are Computers.
They are everywhere!
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Data Processing
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• The activity of processing data using a computer is called
data processing
Data
Capture Data
Manipulate Data
Output Results
Information
• Data is the raw material used as input, and information is
processed data obtained as the output of data processing
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IT1001-Introduction to Programming using C
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Characteristics of Computers
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1)Automatic: Given a job, computer can work on it
automatically without human interventions
2)Speed: Computer can perform data processing jobs
very fast, usually measured in microseconds (10-6),
nanoseconds (10-9), and picoseconds (10-12).
3)Accuracy: Accuracy of a computer is consistently
high and the degree of its accuracy depends upon its
design. Computer errors caused due to incorrect
input data or unreliable programs are often referred
to as Garbage-In-Garbage-Out (GIGO)
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Characteristics of Computers
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4)Diligence: Computer is free from monotony, tiredness,
and lack of concentration. It can continuously work for
hours without creating any error and without grumbling
5)Versatility: Computer is capable of performing almost
any task, if the task can be reduced to a finite series of
logical steps
6)Power of Remembering:
Computer can
store
and recall any amount of information because of its
secondary storage capability. It forgets or looses certain
information only when it is asked to do so.
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IT1001-Introduction to Programming using C
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Characteristics of Computers
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7)No I.Q.: A computer does only what it is programmed
to do. It cannot take its own decision in this regard
8)No Feelings: Computers are devoid of emotions.
Their judgement is based on the instructions given to
them in the form of programs that are written by us
(human beings)
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Introduction: Computer
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A computer is an electronic device, operating
under the control of instructions (software)
stored in its own memory unit, that can
accept
data
(input),
manipulate
data
(process), and produce information (output)
from the processing.
Generally, the term is used to describe a
collection of devices that function together as a
system.
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IT1001-Introduction to Programming using C
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Devices that comprise a computer system
Monitor
(output)
Speaker
(output)
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System unit
(processor, memory…)
Printer
(output)
Storage devices
(CD-RW, Floppy,
Hard disk, zip,…)
Mouse
(input)
Scanner
(input)
Keyboard
(input)
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Why Is A Computer So Powerful?
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The ability to perform the information
processing cycle with amazing speed.
Reliability (low failure rate).
Accuracy.
Ability to store huge amounts of data
and information.
Ability
to
communicate
with
other
computers.
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IT1001-Introduction to Programming using C
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The Primary Components Of A Computer
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Input devices.
Central Processing Unit
(containing the control
unit and the
arithmetic/logic unit).
Memory.
Output devices.
Storage devices.
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Input Devices
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Primary input devices
❑ Keyboard.
❑ Mouse
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Other input devices
❑ digital camera
❑ scanner
❑ microphone
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IT1001-Introduction to Programming using C
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The Central processing Unit
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The central processing unit (CPU) contains electronic
circuits that cause processing to occur.
The CPU interprets instructions to the computer,
performs the logical and arithmetic processing
operations, and causes the input and output operations
to occur.
It is considered the “brain” of the computer.
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Memory
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❑ Primary Storage Devices
❑ RAM (temporary memory) is the main memory of the computer.
❑ Any information stored in RAM is lost when the computer is
turned off.
❑ Read Only Memory or ROM is permanent memory.
❑ Secondary Storage Devices
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Floppy Disks
Hard Disks
Compact Discs
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IT1001-Introduction to Programming using C
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How Does a Computer Know what to do?
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It must be given a detailed list of instructions,
called a computer program or software, that
tells it exactly what to do.
Before processing a specific job, the computer
program corresponding to that job must be stored
in memory.
Once the program is stored in memory, the
computer can start the operation by executing the
program instructions one after the other.
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An Example
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Work to be done: Buy 1 kg Potato.
A sequence of Steps:
1.
2.
3.
4.
5.
6.
Take Bag, Money.
Go to the Market.
Search for good Potato.
Buy 1kg Potato.
Go home.
Stop.
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IT1001-Introduction to Programming using C
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Hardware and Software
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❑ Hardware: Keyboard, Mouse, Monitor, Printer,
CPU, Memory, etc. (Which can be sensed
physically)
❑ Software: Set of programs, like –
OS: Interface between hardware & user.
Compiler: Translates from high level language to
machine Language.
Other Tools: Internet access, Voice, Video, Games,
etc.
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Computer (Conceptually)
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IT1001-Introduction to Programming using C
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A Model ( Human)
❑ Body
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Hardware
❑ Thinking Process (Mind)
Software
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Early Computers
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❑ Fixed-program computer: Can do specific
task(s)
which is wired (fixed) into the
hardware. E.g.: A
Calculator.
Drawbacks: No flexibility, cannot be used as a
word processor or a gaming console.
❑ Stored-program computer: uses
a
central
processing unit (CPU) and a single separate
storage structure ("memory") to hold both
instructions and data.
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IT1001-Introduction to Programming using C
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Stored-Program Computers
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Program is also seen as data.
Program is also stored in memory as data.
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Von Neumann Architecture
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IT1001-Introduction to Programming using C
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Are there other architectures?
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Harvard architecture Stores program in a
separate memory and data in a separate
memory.
But, these are rarely used in general
purpose computers.
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What you have to do?
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Learn basic commands to work with the linux
operating system.
Learn vi editor. (This is a software tool which
is used to create files).
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IT1001-Introduction to Programming using C
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Your first lab exercise
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Create a file named first.c whose contents
should be:
/* This program prints Hello World */
#include<stdio.h>
int main( )
{
printf(“Hello World”);
return 0;
}
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This will print Hello World
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Linux commands
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Create the file: $ vi first.c
Save the file: :wq
To compile this file to get executable file
❑ $ gcc
first.c
If the compilation is successful this
generates a file called a.out
To executes it: $ ./a.out
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IT1001-Introduction to Programming using C
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Homework
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Learn basic Linux commands and vi editor
❑ Read some book on C language and
understand first.c
❑ In the lab the TAs will verify your programs, and
they will ask you some questions related to your
programs.
You will be awarded some marks
for each of the lab exercises.
❑ The lecture slides and useful study materials will
be kept on my web page:
URL:https://sites.google.com/view/dr-vinod❑
kumar-jain/home
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Next Class …
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Introduction to languages, Number System,
Coding Schemes etc.
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IT1001-Introduction to Programming using C
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