My uni had two micros halls, one with 5.0, the other with 5.5. What's the difference? I asked. It turns out the 5.5 had some new shit called "Object Oriented Programming"... and a Breakout clone to illustrate the paradigm.

At some moment Borland released, free as in beer, the 3 and 5 versions. Binaries should be out there somewhere for those curious.

I'm sure young people would be surprised to see what 5.5 provided. The on-screen help was amazing: cut and paste useful examples from the help of many functions. And the instantaneous compiling... :)