[Info-vax] OT: Keypad picture wanted

[Phillip Helbig undress to reply]

In article <rhlsl4$2kc$1 at dont-email.me>, Dave Froble
<davef at tsoft-inc.com> writes: 

> > VMS. And RSTS/E. And any other DEC OS with EDT or similar applications.
> >
> > In that case, the OS controls when to switch between application keypad
> > mode and numeric keypad mode.
> >
> > Also directly controllable on VMS using "set term/application_keypad"
> > and "set term/numeric_keypad".
> >
> > In the PC world, there is no concept of an application keypad mode
> > and the keypad contains navigation keys so it's up to the user to
> > decide if they are using the keypad for number input or for navigation
> > purposes.
> >
> > Simon.
> >
> 
> I've never considered how such worked, so I don't know what I'm writing 
> about (what else is new?) but I always considered it a function of the 
> device (keyboard) not the OS.  I figured that the keyboard sent 
> different characters, based on the keypad mode.
> 
> Never seemed important to know the inner workings ....

IF you have an approximation to the DEC keypad, you can use both numeric 
and application keypads via an X-terminal, over some terminal-emulator 
session, or whatever, which is a hint that it is in the application and 
not in the physical keypad.