[Oberon] psaux

[Paul Reed]

> From: peasthope at shaw.ca
> Subject: Re: [Oberon] aux port

>> What is the meaning of "aux".[?]
>
> Responses in debian-user helped.  Open this page and follow the links.
> http://lists.debian.org/debian-user/2013/04/msg01412.html

> From: Jan Verhoeven <jan at verhoeven272.nl>
> Subject: Re: [Oberon] aux port

> AUXilliary port.

The comments in the Debian thread are half-right, half-wrong (gah!) :)

The IBM PS/2 computer's mouse was implemented as an auxiliary device on
the keyboard (micro-)controller which replaced the one on the AT design. 
To control the mouse, you send a special command to the keyboard
controller first, signifying that the following command is intended for
the auxiliary device, not the keyboard.

However, psaux has nothing to do with the more generically-named AUX
device in Microsoft operating systems!