TTY vs Terminal

[Jad madi]

hmm and how to change font size of tty ?


On 24/07/07, Smoot Carl-Mitchell <smoot at tic.com> wrote:
> On Tue, 2007-07-24 at 10:26 -0400, Jimmy Wu wrote:
>
> >  the work (processing the commands and sending back a response).  One
> > mainframe was usually connected to multiple terminals (TTY's), and
> > many people could logon simultaneously, which is where the term
> > timesharing came from.  Of course, all this became obsolete with the
> > rise of personal computers.
>
> Actual timesharing with TTYs is obsolete, but the technology which made
> it possible is still a part of GNU/Linux systems, since all Unix like
> systems are built on timesharing principals because the original Unix
> operating system was a timesharing system. This is one reason GNU/Linux
> systems are quite different than PC operating systems like Windows. The
> key components of a timesharing system are:
>
> 1) Process scheduler
> 2) Protected memory
> 3) Robust file permissions system
>
> All these components are necessary to keep multiple users from getting
> in each others way on a shared system. The timesharing legacy is also
> why GNU/Linux systems tend to be more secure than their Windows
> counterparts.
>
> While use of real TTYs is rare these days, the serial terminal interface
> paradigm was adopted by various remote access services, such as SSH or
> TELNET. If you look carefully, you will see there is a pseudo tty
> allocated for each SSH session which behaves just like a real serial
> port. This also happens every time you open a terminal command line.
> >From the OS's perspective this all looks the same as if you were
> connecting via a hardwired terminal.
>
> --
> Smoot Carl-Mitchell
> System/Network Architect
> email: smoot at tic.com
> cell: +1 602 421 9005
> home: +1 480 922 7313
>
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-- 
Jad
http://Syntux.net/
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