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000053_news@columbia.edu _Wed Apr 4 10:42:46 2001.msg
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From: fdc@columbia.edu (Frank da Cruz)
Subject: Re: Linux to SCO terminal emulator
Date: 4 Apr 2001 14:27:14 GMT
Organization: Columbia University
Message-ID: <9afb02$ih8$1@newsmaster.cc.columbia.edu>
To: kermit.misc@columbia.edu
In article <slrn9club2.lo5.harri@tolppa.kotisivupalvelu.fi>,
Harri Haataja <harri@tolppa.kotisivupalvelu.fi> wrote:
: AFAIK, cu is a part of UUCP which is a rare installation nowadays.
: There seem to be little terminal emulators available because most of
: the time it makes little or more likely absolutely no sense. xterm or
: console or whatever you might be running (termcap most likely xterm or
: linux) should work and kermit is very good at getting over serial
: lines.
:
: As for the original issue, f-keys should be passed to the terminal
: or active xterm or whatever unless something filters them out. Then
: it's a matter of many different components wheather the odd character
: sequence gets to the other end intact. The "scancodes directly over
: tcp" sounds very odd. You might even be looking for netcat?
:
UNIX is not Windows or DOS. How is a UNIX-based software program
supposed to access the keyboard directly to get Make/Break (Up/Down)
events? This information is simply not available to user-mode
applications. Applications (other than X or the console driver) do not
have direct access to the video adapter, mouse, and keyboard, nor should
they.
Remember that an advantage of UNIX over DOS and Windows is that UNIX
is a multiuser, multitasking operating system, not a single-user system
designed only for use on a PC, from the PC's own physical keyboard and
screen. UNIX users can come in over the console, through X, through a
serial port, a Telnet connection, an Rlogin connection, etc etc, and
there can be any number of them at once. The price you pay for this
flexibility is that applications can't access the hardware directly.
These days, UNIX (Linux) is a general-purpose multiser OS that
everybody is trying to turn into a single-user PC operating system like
Windows, and at the same time Windows is a single-user PC operating
system that everybody is trying to turn into a general-purpose
multiuser operating system. Each one is best at what it was originally
designed for. If you want a platform for which high-performance
terminal emulators are available, you're better off with Windows. If
you want a platform that is generally useful, programmable, relatively
secure, and supports multiple users coming in from a variety of sources
from a variety of different platforms using non-propriatry methods,
you're better off with UNIX.
Of course most people want or need both, which results in many of us
with two workstations on our desks, or booting back and forth between
two OS's, or running DOS or Windows emulators under UNIX so we can have
a terminal emulator.
- Frank