PLATO Key Conversions
PLATO keyboards had lots of weird old keys. To reproduce these keys in
pterm, you can either use the Function keys (those keys with F1-12 along
the top of modern keyboards), OR you can type control-first letter of
the old PLATO key, OR alt-first letter of the old PLATO key.
For example, to use the PLATO ‘back’ key on cyber1, you could
either use the ‘F8’ key, control-b, or alt-b.
| ctrl | | Key | | ALT | | PLATO | |
| ctrl a | | F2 | | ALT a | | ANS | |
| ctrl b | | F8 | | ALT b | | BACK | |
| ctrl c | | F11 | | ALT c | | COPY | |
| ctrl d | | F9 | | ALT d | | DATA | |
| ctrl e | | F5 | | ALT e | | EDIT | |
| ctrl f | | Sh-F4 | | ALT f | | FONT | |
| ctrl h | | F6 | | ALT h | | HELP | |
| ctrl l | | F7 | | ALT l | | LAB | |
| ctrl m | | F4 | | ALT m | | MICRO | |
| | | | | ALT n | | NEXT | |
| ctrl q | | F3 | | ALT q | | "square" or "access" | |
| | | | | ALT r | | ERASE | |
| ctrl s | | F10 | | ALT s | | STOP | |
| ctrl t | | Sh-F2 | | ALT t | | TERM | |
| ctrl x | | DEL | | KP * | | multiply | |
| ctrl g | | INS | | KP / | | divide | |
| ctrl p | | PgUp | | PgUp | | SUPER | |
| ctrl y | | PgDn | | PgDown | | SUB | |
|
| Key | | PLATO | |
| Enter | | NEXT | |
| Backspace | | ERASE | |
| F6 | | HELP | |
| F7 | | LAB | |
| F8 | | BACK | |
| F9 | | DATA | |
| KP + | | + (+ key also works for unshifted +) | |
| KP - | | - (- key also works for unshifted -) | |
| KP left | | a (that's the left arrow PLATO key) | |
| KP right | | d | |
| KP up | | w | |
| KP down | | x | |
| CTRL KP - | | DELTA (also Sh KP -) | |
| CTRL KP + | | SIGMA (also Sh KP +) | |
| ALT KP Left | | assigment arrow | |
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For applications that use the shifted digits as they appear on the
PLATO keyboard for various purposes (for example, in the editor,
shift-0 gets you to part 10 of the file), use control-digit. Control
with any non-letter will give you whatever is on the PLATO keyboard in
the shift position of that key. For example, control = is ).
Nearly all of these can be shifted (which is why + and - are accessible
via the numeric keypad—that's how you can reach the shifted forms).
TERM and FONT are the same shifted or not because those correspond to
shifted keys (shifted ANS and MICRO respectively) on the PLATO keyboard.
If you are new to PLATO, we suggest first learning F6 through F10, as
these will cover the majority of keyboard conversion hassles. Maybe jot
them down on a paper and put it next to your keyboard until you have them
memorized.
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