This document provides an introduction to QBASIC programming. It discusses how to open QBASIC, save programs in QBASIC, and the basic elements used in QBASIC like variables, constants, operators, and statements. It also lists the different types of operators in QBASIC and provides homework questions for practice.

1. WELCOME TO
COMPUTER
ONLINE CLASS

2. INTRODUCTION TO QBASIC
CHAPTER 5
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3. 1.Find the Command Prompt on your computer. If
you are running DOS, this is the prompt that asks
you for commands. ...
2. When you get a window with the prompt, enter
the command: qbasic then press the ENTER key.
3. QBasic should start up. The pictures in CHAPTER
1 show what you should see
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4. Sequential file INPUT in QBasic is just like reading data
from the keyboard, except that all the data exists in a file
before the program is run. Save the file using the menu
system, much like you save a program file: hit ALT+F, and
then S, then in the file dialog box enter a file name
Steps to save a
program in Qbasic

5. BASIC ELEMENTS IN QBASIC
✣ The elements used in Qbasic are as
follows:
✣ Character set.
✣ Variables.
✣ Constants.
✣ Operator and Operands.
✣ Expression.
✣ Statements.
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6. OPEN A SAVED PROGRAM IN QBASIC
Sequential file INPUT in QBasic is just
like reading data from the keyboard,
except that all the data exists in a file
before the program is run. Save the file
using the menu system, much like
you save a program file: hit ALT+F, and
then S, then in the file dialog box enter a
file name. Use DATA. DAT.
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7. OPERATORS IN QBASIC
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✣ here are four types of operators in QBASIC. They
are Arithmetic Operators, Relational
Operators, Logical Operators and Sting
Operator. Arithmetic Operators are used to
perform mathematical calculations like
addition,subtraction, division, multiplication and
exponential.

8. LETS WATCH
TUTORIAL.
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https://youtu.be/15p8Q7CttRc

9. HOME WORK
DO QUESTIONS IN YOUR NOTEBOOK.
1. Write the steps to execute the program.
2. What are the main components of Qbasic screen?
3. How will you open a saved program in Qbasic ?
What are the different types of operators in
Qbasic?
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10. Practice at
home
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11. Thanks!
Any questions?
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