On 4/11/19 5:32 PM, Przemek Klosowski wrote:
I think the Android model is more relevant in this IoT age than the traditional 
timesharing, 'kick-me-off-when-I-log-out' mode.

I would agree and observe that even the timesharing model was never really 
kick-me-off-when-I-log-out.
Processes have an owner (username) and run by themselves. Some effects related 
to father-child lifecycle
are almost accidental (broken pipe and so on) and easily avoided (nohup, 
screen).
The concept of "login" was just associated to how you entered the system 
(authentication,...), and there
was no real concept of "session".
The "session" concept mostly came from the graphical interfaces, where many 
pieces have to collaborate to
give the final experience, that started the "session daemons" fashion.
Some not-Unix operating system that were almost useless without a login (and 
without a graphic card)
reinforced this idea that "the machine does something only when somebody is logged 
in".

Regards.
--
   Roberto Ragusa    mail at robertoragusa.it
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