Note 1

Realize that, although each punctuation mark shown is the shift
character on a key (for example, the ? is the "uppercase
shift" on the / key, ^ is the shift of 6, @ the shift of 2, etc.),
you don't really have to hold down the shift key at all on any of these commands
to get it to work on any of the Athena terminals.  "Uppercase" doesn't
count with control characters.  CTRL-/ is as good as CTRL-?.


Note 2

There are other CTRL-punctuation mark commands.  The CTRL-] (Abort
Recursive Edit), CTRL-LINEFEED (Ident New Line), and CTRL-BACKSPACE
(Backward Character) commands work uniformly on all Athena
terminals.  The rest of the CTRL-puncutation mark commands
(TAB, ESC, DELETE, #, +, ;, <, >, and \) do not appear to work
as documented on any Athena terminal.  Most are "dead" keys.
These commands are largely obscure (like Increment Q-register).
If you need them, you can type out their full names following an
ESC-X (Extended Command) prefix.

Note 3

The IBM PC's running Athena's h19pc terminal emulator have another
problem.  ESCape commands (what Emacs documentation calls "meta"
commands) MUST be entered in lowercase.  An ESC-A may do something
altogether different from an ESC-a.  This is aggravated by the fact
that the PC's SHIFTLOCK key is located right where touch typists
are used to finding a simple SHIFT key.  You can easily turn
on SHIFTLOCK by mistake and wonder why Emacs suddenly starts mangling
your text.

Note 4

All of this advice is predicated on the assumption that your terminal
has been set-up correctly.  It must be defined properly in each
machine's /etc/ttytype file and its own interal settings must be
configured properly.  If the terminal you are trying to use is
simply not functioning correctly, please show the problem to
a consultant.  If no consultant is available, the simplest thing to do
is to move to a different terminal see if it does any better.
The worst thing to do is try to fix the terminal settings yourself
unless you know exactly what you are doing.
That is probably how the terminal got messed up in the first place.