On 06/26/2015 05:04 AM, mark wrote: > You misunderstand me: I understand the terminology, and why they chose > it. I simply disagree with their choice, and have always found it > confusing, esp. to anyone coming into it since, um, the mid/late 80's, > when *everything* else in the world used the terminology the other > way, from d/b to three-tiered architecture. No, they didn't. The server is the persistent process, the one that listens for network connections from clients, typically the one that authenticates clients, and the one that performs privileged actions on behalf of clients. That's what the X11 display server does. The display server is a persistent process. Clients (such as xterm) connect to it. There is not a persistent xterm "server" running that the display "client" connects to. The display server authenticates clients. It manages the interface with the graphics card and HID devices.