- Unix
 - Instructions for retrieving the Unix TeX distribution
  via anonymous 
ftp are available in the document
  systems/unix/unixtex.ftp
  A useful set of binaries for various common Unix systems is
  to be found as part of the teTeX distribution
  (systems/unix/teTeX/distrib/binaries); teTeX will compile on most Unix systems,
  though it was originally developed for use under Linux (see below).
 - Linux
 - There are at least two respectable implementations of
  TeX to run on Linux, NTeX (available as systems/unix/linux/ntex) and
  teTeX (available as systems/unix/teTeX).
  Beware the Slackware '96 CD-ROM distribution of NTeX: it
  includes a version of the CM fonts that has deeply offended
  Don Knuth (since it contravenes his distribution conditions).  The
  Slackware updates now offer teTeX.
 - PC
 - The emTeX package for PCs running OS/2, MS-DOS or Windows
  includes LaTeX, BibTeX, previewers, and drivers, and is
  available in systems/msdos/emtex as a series of zip archives.  The
  package was written by Eberhard Mattes, and documentation is
  available in both German and English.  Appropriate memory managers
  for using emTeX with 386 (and better) processors and under
  Windows, are included in the distribution.
  A second package, gTeX, runs under MS-DOS or Windows (and its
  users speak well of it).  It is available from systems/msdos/gtex
  The most recent offering is an MS-DOS port of the Web2C 7.0
  implementation, using the GNU djgpp compiler.  It
  is available from systems/msdos/djgpp
  TUG (and some of the other user groups) offer all freely-available
  TeX software for the PC.  A catalogue is available free from
  TUG.
 - PC: Win32
 - MikTeX, by Christian Schenk, first arrived
  on CTAN in 1996.  It has been welcomed by those that have used it
  and reported their experiences.  It will run under Windows'95 or
  Windows/NT, and is available from systems/win32/miktex
  A port of Web2C for Win32 is also available, from
  systems/win32/web2c
 - Windows NT, other platforms
 - A Power PC port of
  MikTeX is available from systems/win32/miktexppc, and an AXP
  port is available from systems/win32/miktex-AXP
 - Mac
 - OzTeX is a shareware version of TeX for the Macintosh. A
  DVI previewer and PostScript driver are also included. It should run
  on any Macintosh Plus, SE, II, or newer model, but will not work on
  a 128K or 512K Mac. It was written by Andrew Trevorrow, and is
  available in systems/mac/oztex, or on floppy disks from
  TUG.
  UK TUG prepays the shareware fee, so that members of
  UK TUG may
  acquire the software without further payment.  Questions about
  OzTeX may be directed to oztex@midway.uchicago.edu
  Another partly shareware program is CMacTeX (available as
  systems/mac/cmactex), put together by Tom Kiffe. This is much closer
  to the Unix TeX setup (it uses dvips, for instance).
 - VMS
 - TeX for VMS is available as systems/vms/Alpha/tex_axp_exe.zip (for
  Alpha-based machines) or systems/vms/VAX/tex_vax_exe.zip (for VAX machines).
  Standard tape distribution is through DECUS
  (see sources of software).
 - Atari
 - TeX is available for the Atari ST in systems/atari
  If anonymous ftp is not available to you, send a message
  containing the line `help' to
  atari@atari.archive.umich.edu
 - Amiga
 - Full implementations of TeX 3.1 (PasTeX) and METAFONT
  2.7 are available in systems/amiga
  You can also order a CD-ROM containing this and other Amiga software
  from Walnut Creek CDROM, telephone (+1) 510-947-5997.
 - TOPS-20
 - TeX was originally written on a DEC-10
  under WAITS,
  and so was easily ported to TOPS-20. A distribution that runs on
  TOPS-20 is available via anonymous 
ftp from ftp.math.utah.edu
  (128.110.198.34) in pub/tex/pub/web