Executive Chair

I shop around for a new chair, and I've noticed that especially the different shops and similar categories to name their locations. Executive office chair manager chair computer chair Drafting chair where did these names come from? What makes a chair specifically for a particular task. And what is a good chair to work on, sitting at a computer 12 hours a day? (The computer chairs seem to be on the bottom line?) The only two that do, because for me to design and performance? Wikipedia source the best answer, as well as the history of this marketing / naming know. Curious about what defines a chair seat in a manger. Guess I'll never know.