MSDOS.TXT    MS-DOS Prompt    2002/05/13

     MS-DOS was Migrosoft's premier operating system for PCs (Intel
based Personnel Computers) before the advent of Windows.  MS-DOS is
similar to the UNIX operating system in that commands (programs) and
their input files can be submitted to the operating system via the
keyboard.  When programs require one or more input files, keyboard
input is considerably more efficient then the methods available via
Windows.  The limitation of MS-DOS is that program code and data and a
resident part of the operating system must be squeezed into 640k bytes
of internal memory.

     The MS-DOS Prompt in Microsoft Windows is invoked be clicking on
"Start", clicking on "Programs", and then clicking on "MS-DOS Prompt".

     Some useful DOS commands are:

CD    Change Directory.  To change the present working directory from
      C:\Windows to C:\AOM, type: "CD ..\AOM", and then hit the
      keyboard "Enter" key.

DIR   List files in present working DIRectory.

REN   REName a file.  Sometimes, when the file Z72X46N is transferred
      to the local PC disk from the web site, the browser appends the
      file extent ".txt" to the file's name.  To remove this, type:
      "REN Z72X46N.txt Z72X46N", followed by "Enter".

     Executable programs with the file extent ".EXE" or ".exe" can be
invoked without typing the file extent.  Thus, typing: "PCDATA"
followed by "Enter" has the same effect as typing: "PCDATA.EXE"
followed by "Enter".