56 lines
3.6 KiB
HTML
56 lines
3.6 KiB
HTML
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<!Converted with LaTeX2HTML 95.1 (Fri Jan 20 1995) by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds >
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<TITLE>3.2.3 Virtual consoles</TITLE>
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<meta name="description" value="3.2.3 Virtual consoles">
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<P>
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<BR> <HR><A NAME=tex2html3006 HREF="node99.html"><IMG ALIGN=BOTTOM ALT="next" SRC="next_motif.gif"></A> <A NAME=tex2html3004 HREF="node95.html"><IMG ALIGN=BOTTOM ALT="up" SRC="up_motif.gif"></A> <A NAME=tex2html2998 HREF="node97.html"><IMG ALIGN=BOTTOM ALT="previous" SRC="previous_motif.gif"></A> <A NAME=tex2html3008 HREF="node1.html"><IMG ALIGN=BOTTOM ALT="contents" SRC="contents_motif.gif"></A> <A NAME=tex2html3009 HREF="node250.html"><IMG ALIGN=BOTTOM ALT="index" SRC="index_motif.gif"></A> <BR>
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<B> Next:</B> <A NAME=tex2html3007 HREF="node99.html">3.2.4 Shells and commands</A>
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<B>Up:</B> <A NAME=tex2html3005 HREF="node95.html">3.2 Basic UNIX Concepts</A>
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<B> Previous:</B> <A NAME=tex2html2999 HREF="node97.html">3.2.2 Logging in</A>
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<BR> <HR> <P>
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<H2><A NAME=SECTION00523000000000000000>3.2.3 Virtual consoles</A></H2>
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<P>
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<A NAME=1834> </A>
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<A NAME=1835> </A>
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The system's <b>console</b> is the monitor and keyboard connected directly
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to the system. (Because UNIX is a multiuser operating system, you may
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have other terminals connected to serial ports on your system, but these
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would not be the console.) Linux, like some other versions of UNIX, provides
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access to <b>virtual consoles</b> (or VC's), which allow you to have more than
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one login session from your console at a time.
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<P>
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To demonstrate this, login to your system (as demonstrated above). Now,
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press <IMG BORDER=0 ALIGN=BOTTOM ALT="" SRC="img97.gif">. You should see the <tt>login:</tt> prompt again. You're
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looking at the second virtual console---you logged into the first. To
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switch back to the first VC, press <IMG BORDER=0 ALIGN=BOTTOM ALT="" SRC="img98.gif">. <em>Voila!</em> You're
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back to your first login session.
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<P>
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A newly-installed Linux system probably allows you to access the first
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four VC's, using <IMG BORDER=0 ALIGN=BOTTOM ALT="" SRC="img99.gif"> through <IMG BORDER=0 ALIGN=BOTTOM ALT="" SRC="img100.gif">. However, it is
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possible to enable up to 12 VC's---one for each function key on your
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keyboard. As you can see, use of VC's can be very powerful---you can
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be working on several different VC's at once.
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<P>
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While the use of VC's is somewhat limiting (after all, you can only
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be looking at one VC at a time), it should give you a feel for UNIX's
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multiuser capabilities. While you're working on VC #1, you
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can switch over to VC #2 and start working on something else.
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<P>
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<BR> <HR><A NAME=tex2html3006 HREF="node99.html"><IMG ALIGN=BOTTOM ALT="next" SRC="next_motif.gif"></A> <A NAME=tex2html3004 HREF="node95.html"><IMG ALIGN=BOTTOM ALT="up" SRC="up_motif.gif"></A> <A NAME=tex2html2998 HREF="node97.html"><IMG ALIGN=BOTTOM ALT="previous" SRC="previous_motif.gif"></A> <A NAME=tex2html3008 HREF="node1.html"><IMG ALIGN=BOTTOM ALT="contents" SRC="contents_motif.gif"></A> <A NAME=tex2html3009 HREF="node250.html"><IMG ALIGN=BOTTOM ALT="index" SRC="index_motif.gif"></A> <BR>
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<B> Next:</B> <A NAME=tex2html3007 HREF="node99.html">3.2.4 Shells and commands</A>
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<B>Up:</B> <A NAME=tex2html3005 HREF="node95.html">3.2 Basic UNIX Concepts</A>
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<B> Previous:</B> <A NAME=tex2html2999 HREF="node97.html">3.2.2 Logging in</A>
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<BR> <HR> <P>
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<BR> <HR>
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<P><ADDRESS>
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<I>Matt Welsh <BR>
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mdw@sunsite.unc.edu</I>
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</ADDRESS>
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</BODY>
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