VB.NET finds its roots in BASIC. In its beginning, BASIC was used in the college community as a "basic" language for first exposure to computer programming and the acronym represented the language accurately. In the 1970s, the language was picked up by microcomputer manufacturers of the era to be used as both a simple ROM embedded programming language as well as a quasi operating system for input/output control. In the early 1980s, the language was picked up by Microsoft and expanded significantly beyond its original intent into their "Visual Basic" language/platform that was sold throughout the 1990s as a "rapid application development" (RAD) tool for Windows programming. It competed directly against other RAD tools of the 1990s such as PowerBuilder. Even though Visual Basic was a successful development platform, it was discontinued after its 6th version (VB6) when Microsoft introduced the .NET Framework and its related Visual Studio development platform in the early 2000s. At that time, the current C++ and VB6 languages were used by Microsoft as the basis for two new programming languages in their new "Integrated Development Environment (IDE)". These languages were named C# and VB.NET.