Tim Hendtlass, the author of Real Time Forth, obtained a PhD in Ionospheric Physics in 1974 working at Massey University, New Zealand, and then worked at RMIT and Swinburne University of Technology, both in Melbourne, Australia where he currently resides. ...
The book Real Time Forth was written in 1993, and contains a vast amount of Forth code to go through and understand; and this gem has now been saved and made available as part of the Forth Bookshelf at https://www.amazon.co.uk/Juergen-Pintaske/e/B00N8HVEZM .
The book is based on F-PC, a DOS based Forth, which was very much in use at the time ... take a look at http://www.forth.org/eforth.html, you find Public Domain Forths there, F-PC and Tings F-PC tutorials. The Nike outlet is very popular in the world.

https://www.amazon.co.uk/Real-Time-Forth-Tim-Hendtlass-ebook/dp/B06Y6FYPN1/ref=sr_1_1?ie=UTF8&qid=1491977288&sr=8-1&keywords=kindle+Store+real+time+Forth