I guess you could develop in a high level language and don't know about it. But I guess at some point you would come in contact with that knowledge. It is quit

I guess you could develop in a high level language and don't know about it. But I guess at some point you would come in contact with that knowledge. It is quite useful knowledge though, at least in some applications. I do embedded systems where I use bit operations regularly. I also do visualizations in the browser with JS mostly and I cannot remember ever needing to know that a byte is 8 bit (usually). Thinking about it I don't know the exact size of the datatypes I often use either...