https://ryanstutorials.net/binary-tutorial/
https://www.calculator.net/binary-calculator.html
https://mxtoolbox.com/
https://dnschecker.org/
https://www.whatsmyip.org/ & https://test-ipv6.com/
Free Online Courses by Harvard, MIT, & more ...
https://www.edx.org
Harvard: Introduction to computer science
https://www.edx.org/course/cs50s-introduction-to-computer-science
https://www.edx.org/course/cs50s-web-programming-with-python-and-javascript
https://www.youtube.com/watch?v=bj-Yfakjllc&list=PLIFyRwBY_4bRLmKfP1KnZA6rZbRHtxmXi
https://www.studytonight.com/computer-networks/
https://javascript.info
https://exploringjs.com
https://github.com/getify/You-Dont-Know-JS
https://www.valentinog.com/blog/error/
https://dmitripavlutin.com/javascript-fetch-async-await/
https://dev.to/jamesliudotcc/how-to-use-async-await-with-map-and-promise-all-1gb5
https://www.valentinog.com/blog/python-for-js/
https://www.codewars.com
https://adventofcode.com
https://www.edx.org
https://www.coursera.org
https://www.udemy.com
https://www.udacity.com
https://github.com
https://gitlab.com
https://lerneprogrammieren.de/git/
UIBK - Einführung in die Programmierung
https://www.youtube.com/playlist?list=PL5eolwFmTdvj6uEwatR3NrPLDtGV3Qln6
https://www.i-programmer.info/babbages-bag/302-the-program.html
https://freecontent.manning.com/how-is-c-compiled
https://whatsit.ch/how-to-consume-a-restful-api-in-c
https://codeasy.net/lesson/properties
https://stackoverflow.com/questions/17881091/getter-and-setter-declaration-in-net
https://github.com/trekhleb/javascript-algorithms https://www.i-programmer.info/programming/theory/2744-how-not-to-shuffle-the-kunth-fisher-yates-algorithm.html