While using DOS or running other programs, there are various keys that are
interpreted in special ways.

Ctrl-Break  - Stop program execution.  The Ctrl-C key has the same effect.

Ctrl-NumLock - Stop the screen display output until any other key is pressed.
               The Ctrl-S key has the same effect.

PrtSc  - Print the information currently on the screen on the printer.

Ctrl-PrtSc - Echo all information displayed on the screen on the printer.  The
             first time the key is pressed the printer output is started, the
             next time the key is pressed, output stops (the key acts as a
             on/off toggle).

Crtl-Alt-Del - Pressing all three keys at once will reset the system.

F6  - DOS normally interprets this key as an "end-of-file" (EOF) indication.
      If the function key has been redefined by some software package, the
      EOF code may not be generated.  The Ctrl-Z key always generates EOF.



Various keys are available to "edit" the command line you are specifying for
the next DOS command.  The function keys may not have the same meaning if your
function keys have been redefined by some software package.  The last command
entered is retained and may edited using the commands shown below:

F1  or  the Cursor Right key  - Display the next character from the last
                                command line.
F3  - Display all remaining characters from the last command line.
F2  - Display all characters up to the specified character from the last
      command line.
F4  - Skip all characters up to the specified character from the last command.
Del - Skip one character in the last command line.
Ins - Insert the following characters until the "Ins" key is pressed again.
F5  - Save this line in place of the last command line and allow more editing.
Ctrl-Enter  - Continue command entry on the next line of the display.
Esc - Cancel the current command line and start all over again.
