Thanks so much for that simple statement "embedded programming" It is the first time during all my internet research into learning to code (specifically Arduino scrolling text) that it has been given a name pointing me to an specific sub genre of programming. All I seem to have read is how easy it all is and it is starting to give me a complex thinking that "I am a bit slow on the uptake" 
After googling enbedded prog I am at least finding specific information so thanks again Pedro.