02-02-2013, 09:56 AM
Visual Basic ( VB )
Visual Basic.docx (Size: 103.42 KB / Downloads: 27)
INTRODUCTION
• 2. What is VB? Visual Basic ( VB ) is an event driven programming language and associated development environment created by Microsoft. In business programming, it has one of the largest user bases. It is derived heavily from BASIC and enables rapid application development (RAD) of graphical user interface (GUI) applications, access to databases using DAO, RDO, or ADO, and creation of ActiveX controls and objects. A programmer can put together an application using the components provided with Visual Basic itself. As of 2003, 52 percent of software developers used Visual Basic, making it the most popular programming language at that time. 43 percent of those Visual Basic developers, however, planned to move to other languages.[1] The popularity of Visual Basic perhaps results from its easy to understand syntax. Like all other Turing complete programming languages, it can also be used to create arbitrarily complex applications. Programs written in Visual Basic can use the Windows API, but doing so requires external function declarations.
• 3. Visual Basic is not an acronym anymore. It used to be. When the language was invented in the early 70's, BASIC stood for B eginners' A ll-purpose S ymbolic I nstruction C ode, When you work with RAD (Rapid Application Development) tools like VB in a graphical interface environment
• 4. What Can Visual Basic Be Used For? to write games, phone books, modem communications software, encryption utilities, GUIs and much more Database handling Internet !
• 5. Interpreter A program that will read the code of a specific language, compile it, and load it into the systems memory. Every time this program is run, it must be re-interpreted, and therefore interpreted languages can never be as fast as fully compiled languages. Languages that use interpreters include Basic (and specialized forms such as QBasic ) , Perl , PHP , MUMPS , and many others. Computer Science ) Compiler A compiler is any of a family of programs used to turn source code into an executable program . This action is called compiling . The opposite of compiling is decompiling , which can be done by a decompiler .