Visual Basic
Event-driven programming language by Microsoft
Visual Basic is an event-driven programming language and integrated development environment created by Microsoft, first released in 1991, that paired a BASIC-derived syntax with a drag-and-drop visual form designer for building Windows…
Definition
Visual Basic is an event-driven programming language and integrated development environment created by Microsoft, first released in 1991, that paired a BASIC-derived syntax with a drag-and-drop visual form designer for building Windows desktop application interfaces. It popularized rapid application development for business software by letting developers place buttons, text boxes, and other controls visually and attach code directly to their events, such as a button click, rather than writing UI layout code by hand.
Overview
Visual Basic was released by Microsoft in 1991, building on the BASIC language family's approachable syntax while adding a graphical form designer that let developers construct a Windows application's interface by dragging controls onto a canvas rather than writing layout code line by line. This combination of familiar syntax and visual tooling made Visual Basic extremely popular for internal business tools and small-to-medium desktop applications throughout the 1990s, at a time when building a Windows GUI in C with the raw Win32 API required substantially more boilerplate code. Mechanically, Visual Basic is event-driven: a developer defines subroutines that run in response to specific events, like a button's `Click` event or a form's `Load` event, and the runtime environment handles the underlying message loop and window management invisibly. This model abstracted away most of the low-level details of Windows GUI programming, letting developers focus on what should happen when a user interacts with a control rather than managing window handles and message dispatching manually. Classic Visual Basic (versions 1 through 6) used its own COM-based object model and was not built on the .NET runtime, which came later. Microsoft eventually retired classic Visual Basic in favor of Visual Basic .NET, a substantially redesigned language that runs on the .NET runtime alongside C#, adopting full object-oriented programming, structured exception handling, and access to the broader .NET class library while retaining Visual Basic's approachable, English-like keyword syntax. This positions modern VB.NET as a syntactic alternative to C# on the same runtime, rather than as BASIC's simplified, standalone descendant that classic Visual Basic represented. In practice, Visual Basic saw its heaviest use in corporate environments building internal line-of-business applications, custom Microsoft Office automation through VBA (Visual Basic for Applications, a closely related but distinct macro language), and rapid prototypes where development speed mattered more than raw performance. Many legacy enterprise systems written in classic Visual Basic remain in production maintenance today, even though Microsoft ended mainstream support for the classic runtime years ago. Visual Basic's main limitations were tied to its Windows-only, COM-based architecture in the classic versions, which limited portability, and its reputation, fair or not, as a less "serious" language among some professional developers compared to C++ or, later, C#. VB.NET addressed portability partially by running on .NET, though most new Microsoft-ecosystem development today defaults to C#, leaving VB.NET primarily in legacy maintenance and a smaller base of teams who prefer its syntax.
Key Features
- Drag-and-drop visual form designer for Windows GUI construction
- Event-driven programming model tied to control events like Click
- BASIC-derived, English-like keyword syntax
- Classic versions built on a COM-based object model
- VB.NET successor running on the .NET runtime alongside C#
- Closely related VBA macro language for Microsoft Office automation
- Rapid application development focus for business software
- Large legacy codebase still in enterprise maintenance today
Use Cases
Alternatives
Frequently Asked Questions
From the Blog
What Is Visual Studio Code? A Guide for New Developers
Visual Studio Code, or VS Code, is a free, extensible code editor built by Microsoft that supports nearly every programming language through extensions. This guide covers its core features, must-have extensions, and how to set it up.
Read More Data ScienceNeural Networks Explained: A Visual Guide
A neural network learns patterns by passing data through layers of weighted connections that adjust during training. Here is how each piece works together.
Read More ProgrammingWhat Is Computer Graphics? A Beginner's Definition
Computer graphics is the field of computing dedicated to creating, manipulating, and displaying visual content using computers, from simple 2D shapes to fully rendered 3D scenes. This guide defines the term and breaks down its core techniques and uses.
Read More ProgrammingWhat Is a Fishbone Diagram? Root Cause Analysis Explained
A fishbone diagram, also called an Ishikawa diagram, is a visual tool that organizes possible causes of a problem into categories resembling a fish skeleton. This guide explains how to build and read one for root cause analysis.
Read More