Terminology that was once thought colorful and evocative has since changed due to the desire to include everyone and not conjure up images of a dark past. Such is the case with the issue of coordination between computer devices. While we used to call an initiator device the "master", the the responding device the "slave," such terms are now eschewed, no matter how cute or even accurate they once were thought to be. Be aware that in many hardware textbooks you may see the terms bus master and bus slave.