Turbo Pascal 5.5 Object Oriented Programming Guide 🔔 📢

Before version 5.5, Turbo Pascal was the undisputed king of MS-DOS because of its speed—it could compile programs in seconds that took other compilers an hour. When version 5.5 arrived, it brought to the masses. For many developers, this was their first real exposure to concepts like classes, inheritance, and polymorphism.

Allowing for polymorphism where child objects could redefine behavior. Turbo Pascal 5.5 Object Oriented Programming Guide

Influencing the "native code" approach rather than an interpreted one. Key Innovations in 5.5 included: Before version 5