Turbo Pascal 5.5 Object Oriented Programming Guide Page

The Official OOP Guide (now a cult classic among retro-coders) famously told users to "strive to forget what people have told you about OOP" and just sit down and try it. 2. The Language Evolution

Influencing the "native code" approach rather than an interpreted one. Key Innovations in 5.5 included: Turbo Pascal 5.5 Object Oriented Programming Guide

Allowing for polymorphism where child objects could redefine behavior. The Official OOP Guide (now a cult classic