Starting with QBASIC

Learning Objectives

- To study about

- what is programming

- QBASIC – programming language

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Keywords

- Programming

- Symbolic

- Instruction

- Machine code

- Interpreter

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Write the keywords five times in your notebook.

Introduction

- A computer does not understand any human languages.

- To perform any task it needs a sequence of instructions in its language

- “A programming language is a set of words, instructions, abbreviations, and symbols that tells a computer what to do”

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QBASIC

- BASIC- Beginners All Purpose Symbolic Instruction Code

- BASIC is a high level programming language.

- It was developed by John Kemeny and Thomas Kurtz in 1963.

- QBASIC is one of the version of BASIC.

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QBASIC

- QBASIC- Quick Beginners All Purpose Symbolic Instructions Code.

- It was released by Microsoft in 1991.

- It can be downloaded at free of cost.

- “QBASIC is a high level programming language that help us to write , edit ,execute and correct a program”

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QBASIC

- The program written in QBASIC need to be converted into machine code.

- QBASIC have an interpreter that converts one statement of a program code into machine code at a time.

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QBASIC

- QBASIC Screen

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QBASIC

- QBASIC screen is also called QBASIC Editor.

- QBASIC editor screen has four parts

- 1. Menu Bar- It consist of all the menus like File, Edit, View, Search, Run, Debug and Options

- 2. Program Window- The upper window titled „Untitled‟ is the program window. This is the window for writing the programs. F5 key is pressed to execute or run the program to get the result.

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QBASIC

- Immediate Window- The lower window titled „Immediate‟ is known as Immediate Window where the simple statements are typed which get executed immediately, after pressing enter key at the end of the statement.

- F6 function key is used to switch from Program Window to Immediate Window and Vice Versa.

- Status Bar- It shows the shortcut keys and the location of the cursor on the screen.

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Instructions

- Dear parents please download and print the worksheet for your child.

- Dear students please complete the worksheet and glue it in your notebook.

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- Break the chain of COVID 19 Transmission.

- Wash and sanitize your hands regularly.

- Stay home…stay safe…stay healthy

- THANKYOU

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