Smalltalk
Updated: 03/06/2020 by Computer Hope
Designed by Alan Kay, Adele Goldberg, and Daniel Ingalls at Xerox PARC (Palo Alto Research Center) starting in 1969, Smalltalk is the second object-oriented programming language and the first true IDE (Integrated Development Environment).
Below is a basic example of how a programmer could print Hello World! in Smalltalk.
Hello World! in Smalltalk
Transcript show:'Hello World!';