Is it possible to create a new apple ID on an iMac and keep the old one?

I'm a teenage kid and have my own Mac Book and iPhone, then the family has an iPad and iMac desktop. All four devices are under my apple ID, but I don't want the Desktop or iPad under my ID anymore. Is it possible to create a new apple ID for the desktop and iPad but keep the existing ID for my iPhone and Mac book?

Ask in a shop. They know better