Delphi is still unrivaled when it comes to rapid GUI prototyping in combination with easy deployment. It's much easier than QT/GTK and you usually get a standalone .exe with no external dependencies. I really want to cry when I see the current alternatives... Node/Electron with dozens of MB of runtime and all that Javascript stuff? What went wrong that we end up with this?
IMO Pascal is a good, clean language and Borland was a top engineering shop that built Delphi as a rapid development tool that supported Windows . At the time there was nothing comparable for Windows development. There was a huge marked for Windows consumer applications and games (Linux was not a household name yet) and very little outside of clumsy Visual Studio to write them. I recall reading at WSJ at the time tha…
20 years ago, RAD meant that you could drop visual components on a form, add some events, set some properties, and hit the green run button to compile and run it.
A very visual way of programming.
QtCreator with it's visual designer comes close, but then you have to suffer a more unforgiving syntax (C++), a complex macro compiler (MOC) and not at all easy cross-compilation / distribution.