Не поверишь, в 90-х вместе с Turbo Pascal параллельно был и Turbo C, Turbo C++, Borland C++.
> Turbo Vision is a character-mode text user interface framework included with Borland Pascal, Turbo Pascal, and Borland C++ circa 1990.
> ..
> Around 1997, the C++ version, including source code, was released by Borland into the public domain[1][2] and is currently being ported and developed by an open-source community on SourceForge under the GPL license.

https://en.wikipedia.org/wiki/Turbo_Vision

зыж
> В 1990-х все учили QBasic или Turbo Pascal 5.5.

Не все учили, а всеХ учили. Чувствуешь разницу?
Но некоторые на этом не останавливались и таки учили не только корпоративный стэк, но и всякие Autotools, Autoconf, Automake, and Libtool.
> Development of the GNU operating system was initiated by Richard Stallman while he worked at MIT Artificial Intelligence Laboratory. It was called the GNU Project, and was publicly announced on September 27, 1983

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