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Re: serial console



On Jul 31, 2025, John Dow wrote:
> 
> > On 31 Jul 2025, at 13:45, Dan Purgert <dan@djph.net> wrote:
> > 
> > On Jul 31, 2025, mick.crane wrote:
> >> I've never really known what a serial console is.
> >> Say in relation to a Raspberry Pi or Arduino
> > 
> > Skipping a *LOT* of history (and linguistics, etc), a "serial console"
> > is a "console" (user interface) provided remotely to the device in
> > question over a serial communications channel.  I don't believe the term
> > really came into use until *after* ethernet took over.
> 
> 
> I think you’re right there, Dan - when I was soldering up db25 RS-232
> cables (pins 2,3,7 and 20 IIRC) and crawling around under floors, a
> terminal was a terminal and the console was something directly

Doesn't help that "Console" apparently also meant the desk with
blinkenlights and a typewriter (as two completely separate things -- no
keyboard into the computer).

> connected to the computer. We didn’t bother with ’serial’ because it’s
> not like there was any other kind of terminal :) It worries me that
> knowledge of these things (and UARTs and character vs block devices
> and any number of other things) is likely to die out with us old farts
> :)

Some of your designs should stay dead, like "Tx to Tx, because something
something DCE". :P 

Depends a little bit.  On the radio side (yet another too expensive
hobby, BTW), it's the old farts going "why would you want to try
building something when you can just buy a $20 radio that just mostly
works?"  (well, you see, /Richard/[1], unlike you who only passed his tech
by memorizing the question and answer pool ... )


[1]To be read with an appropriate amount of rancor towards gatekeeping
old people.

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