GeezerVison — QBasic - Wikibooks, open books for an open world

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Microsoft QuickBasic and QBasic (Quick Beginners All-purpose Symbolic Instruction Code) are very popular programming languages for beginners.
While its lack of power makes it unsuitable for many of today's applications, it is an invaluable learning tool.

This wikibook will cover the usage of QBasic and most of its functions. While most of the text discussed will work under QBasic, that version of the Basic interpreter has limitations and certain advanced commands will only work under QuickBasic.

One of the best Qbasic IDEs (Integrated Development Environment) is QB64. There are certain functions that work only in QB64.

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Microsoft QBASIC 1.0

A printable version of QBasic is available. (edit it)

A PDF version of QBasic is available. 915 kb, 103 pages (info)

Chapters

Text Output

Learn to control text based output.

Arrays and Types

Introduction to data structures in QBasic.

Basic Input

Get input from a user and use it in various ways.

Basic Math

Shows the proper method of performing basic calculations in QBasic.

Flow Control

This section shows how to control the flow of a program.

Subroutines and Functions

Explores the uses of Subroutines and Functions in QBasic.

Working With Strings

Shows string manipulation techniques in QBasic.

Files

Read and write to files allowing for data storage.

Sound

Use the computer to make noises and incorporate them into output. Use Qbasic to make songs and PLAY tunes.

Graphics

Draw images on the screen. An introduction to the use of graphics in Qbasic.

Images

Understand how to use images in QB64.

Advanced Text Output

More advanced features of displayed output.

Advanced Input

Get more precise and real-time input from users. Learn the usage of the INKEY$ loop.

Advanced Maths

This section delves further into the mathematical side of programing.

Advanced Graphics

Learn how to make animation.

3D Graphics

Explore 3D equations in QBasic.

Advanced QBasic

Incorporate many of the concepts into larger programs.

Sample Programs

A set of simple programs.

What Next

Where to go from here. A list of very good sites to continue further.

Appendix

An Appendix of commands and source code.

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