Pascal,Invented in in the 1970's by Nikalus Wirth, was used to introduce new coders to programming.
C is just like C++ (it is just older) and used for the same purpose but replaced Pascal in 1972.
Smalltalk is used in websites and moblie applications and machine learning!
Scheme coding is used for editing and writting text on the screen. The letters you type are made by the coding language Scheme.
IBM Was the computer that people used for coding. In the 1970's coding usually was slow and you had to pay attention to every bit you wrote