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Microsoft QuickBASIC 4.5

Microsoft QuickBASIC 4.5
Microsoft QuickBASIC 4.5

Floppy (3.5")3



Release Date: 1/1/1988
Manufacturer: Microsoft
Microsoft QuickBASIC (also QB; not to be confused with "QBasic") is an Integrated Development Environment (or IDE) and compiler for the BASIC programming language that was developed by Microsoft. QuickBASIC runs mainly on DOS, though there was a short-lived version for Mac OS. It is loosely based on GW-BASIC but adds user-defined types, improved programming structures, better graphics and disk support and a compiler in addition to the interpreter. Microsoft marketed QuickBASIC as the introductory level for their BASIC Professional Development System.

QuickBASIC continues to be used in some schools, usually as part of an introduction to programming, though it is fast becoming replaced by more popular compilers. It also has an unofficial community of hobby programmers who use the compiler to write video games, GUIs and utilities. The community has dedicated several Web sites, message boards and online magazines to the language.

Today, programmers often use DOS emulators, such as DOSBox, to run QuickBASIC on Linux and on modern personal computer hardware that no longer supports the compiler.

Since 2008, a set of TCP/IP routines for QuickBASIC 4.x and 7.1 has revitalized some interest in the software. In particular, the vintage computer hobbyist community has been able to write software for old computers that run DOS, allowing these machines to access other computers through a LAN or the internet. This has allowed systems even as old as an 8088 to serve new functions, such as acting as a Web server or using IRC.

QuickBASIC 4.5 is still available for download for MSDN Subscribers.

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