Computer programming is the process of designing, building and instructing a computer to do a particular computing task. To instruct we need to write codes in some particular programming language that our computer can understand. There are lots of programming languages today, however here we will learn about QBASIC programming language, which is one of the easy to learn languages for beginners.
What is QBasic Programming?
QBASIC stands for “Quick Beginners All-Purpose Symbolic Instruction Code”. QBASIC was developed by Microsoft Corporation in the year 1991. It is considered to be one of the most easy-to-understand programming languages for beginners. It is suitable for both mathematical and business problem solving and it has been adopted by most of the microcomputers.
QBASIC is a replacement of the GWBASIC (Greg Whitten – BASIC). It was based on the QuickBASIC 4.5 compiler. QBASIC is only compatible with MS-DOS Environment on windows, it usually contains two files: 1.QBASIC.EXE and QBASIC.HLP. These two files help us to debug, edit and execute code in the DOS environment. QBASIC doesn’t produce a .exe file, the files are saved with .bas extension.
History of QBASIC Programming Language
In the year 1985 QuickBASIC was originally released. It was sold on a 5.25” floppy disk. The second version Version 2.0 was released in the year 1986 and it was available in both 5.25” and 3.5” floppy disk. Version 2.0 had a built-in user interface for the comfort of users.
In 1988, the latest version QuickBASIC 4.5 was released it had fixed a few problems from the previous version and was compatible with any computer from 8088 with DOS 2.11 to a Windows XP machine.
And in the year 1991, QBASIC programming language builds as a replacement/upgrade version of the old GW-BASIC. The language was based on QuickBASIC 4.5 but it didn’t have QuickBASIC’s Compiler and also the linker elements. The first version of QBASIC (Version 1.0) was shipped with MS-DOS 5.0 and higher. It was also shipped with Windows 95, Windows NT 3.x, Windows NT 4.0 and Windows 98. It was not shipped with Windows XP but a user can install and use it in their XP machine without any issues.
Starting with QBASIC
QBASIC is an Open- Source software, which means you can use it for free.
The whole QBASIC window is divided into two parts :
It is where people can write/edit their codes. The window is titled as ‘Untitled’ by default which can be changed when the user saves the program into a disk.
The Window titled ‘Immediate’ is the Immediate Window. This window is used as a debugging tool and the outputs of every single command statement can be seen here.
Advantages of QBASIC
QBASIC Programming language is quite simple and easy-to-understand language. And there are lots of advantages to this language for beginners.
- Firstly, its open source and so free to use by anyone. It is easily downloadable from the internet.
- This language is available for every computer (from micro-computers to mainframes).
- Suitable for mathematical and business-related applications.
- Writing/editing code is very easy and fun.
- Debugging is simple and easy
- QBASIC automatically checks the syntax for errors.
Disadvantages of QBASIC
- It is not a structured programming language.
- QBasic is Dos based programming language and at present time it has become obsolete and now it is only used in Education and as a beginner’s programming language.
- QBASIC do not generate any executable file(.exe), the files are saved in .BAS extension.
Difference between QBASIC and QuickBasic?
The difference is that QBASIC is an open-source, shareware software, while QuickBasic is a commercial software. As compared to QuickBasic, QBASIC can handle programs which is of a specific limited size. QBASIC does not have the support of the QuickLibrary modules, it only has the standard QB.QLB. QBasic is only is a program interpreter. It just executes raw code, it cannot be used to create executable files directly.
How to start coding in QBASIC programming language?
To start coding, you need to check our article on how to download and install Qbasic in your Windows 7,8 and 10.
Next, check out the basic Qbasic programming commands to understand the basis of the commands used in the language.
Some Important QBASIC Program FAQs.
What are some of the uses of QBASIC programming?
Qbasic has applications on application side, it helps to break a large program into modules and use it. It is good for beginners who are need to coding, especially kids. It can be easily portable across application since it easier to develop.
How do I start a QBASIC in a computer?
If you are using windows xp or older version of windows you can easily find the executable file in Start button, then just click QBASIC.exe . But if you are using present-day version of windows like Windows 7, Windows 8 or 10, than you can follow the like on how to download and run QBASIC in windows7 and windows 10.
Is QBASIC a high level programming language?
Yes it is a high-level-programming language. You can also get other version of BASIC like GWBASIC, Quick BASIC, Turbo BASIC, Visual BASIC.
What is the full-form of QBASIC?
QBASIC stands for “Quick Beginners All purpose Symbolic Instruction Code”.
What software should I use to run QBASIC?
In older of windows like MS-DOS, it use to come preinstalled. However in modern system you need some kind of a DOS- Emulator or run inside a virtual environment like VMWare.
Who invented/ developed QBASIC programming language?
QBASIC was developed by two Professors John G. Kemeny and Thomas E. Kurtz