Instruction register
Beginner's All-purpose Symbolic Instruction Code. A simple language originally designed for ease of programming by students and beginners. Many dialects exist, and BASIC is popular on microcomputers with sound and graphics support.
- WwwBASIC is an implementation of BASIC (Beginner's All-purpose Symbolic Instruction Code) designed to be easy to run on the Web. How to use wwwBASIC You can include wwwBASIC directly in Web pages.
- Apr 10, 2020 It was derived from BASIC (Beginners All-purpose Symbolic Instruction Code). BASIC was developed in 1960 by professor John Kemeny and Thomas Kurtz. Purpose of BASIC was to provide an easy programming language and for Windows Applications. Microsoft Designed Microsoft Visual Basic in 1991, Microsoft released many versions of Visual Basic.
- Aug 03, 2014 BASIC (an acronym for Beginner's All-purpose Symbolic Instruction Code) is a family of general-purpose, high-level programming languages whose design philosophy emphasizes ease of use.
In computing, the instruction register (IR) or current instruction register (CIR) is the part of a CPU's control unit that holds the instruction currently being executed or decoded. In simple processors each instruction to be executed is loaded into the instruction register which holds it while it is decoded, prepared and ultimately executed, which can take several steps.Some of the complicated processors use a pipeline of instruction registers where each stage of the pipeline does part of the decoding, preparation or execution and then passes it to the next stage for its step. Modern processors can even do some of the steps out of order as decoding on several instructions is done in parallel.Decoding the op-code in the instruction register includes determining the instruction, determining where its operands are in memory, retrieving the operands from memory, allocating processor resources to execute the command (in super scalar processors), etc.The output of the IR is available to control circuits which generate the timing signals that control the various processing elements involved in executing the instruction.In the instruction cycle, the instruction is loaded into the instruction register after the processor fetches it from the memory location pointed to by the program counter.
— Wikipedia
Beginner's All Purpose Symbolic Instruction Code Tutorial For Beginners
Computer programming is the process of designing, building, and commanding a computer to do a particular computing task. We need to write some codes in some particular programming language in order to instruct/command our computer to do a particular task. Today we have lots of programming languages to choose, 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 escort antalya 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 antalya escort bayan 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 :
Program Window:
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.
Immediate Window:
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.
Applications Of Qbasic
- Qbasic Programming language is a very suitable and easy-to-understand language for beginners. It helps to understand the basics of programming without having much knowledge about the internal working of the computer.
- Qbasic is used to create simple games, business applications, and even simple database projects. The commands line SET, CIRCLE, LINE, etc that helps the programmer to draw using Qbasic.
- Another application of Qbasic is that it supports to create sounds of different frequencies, which can be played using your computer speaker.
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.
Beginner 27s All Purpose Symbolic Instruction Code Tutorial Java
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