Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
JavaScript - Lightweight, interpreted, object-oriented language with first-class functions
Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.
Java - A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible
Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.