Collections of (physically) large computers

> 
> 
> sorry I couldn't resist ...
> 
> ardp850ug1.demon.co.uk (Tony Duell) wrote:
> > I think the distinction I normally use is often
called 'keeper'. That's a 
> > pun on 'Key Per Function' meaning a calcultor has,
say, a key labelled 
> > 'SIN', whereas on a computer you spell it out. Byt
that definition the 
> > HP41 is a calculator (although you _can_ spell out
the function names if 
> > you want to), the HP9830 most vertainly isn't.
> 
> so what does this make the Sinclair ZX-80, ZX-81 and
Spectrum systems?

The exception that proves the rule ?  (I
couldn't resist either).

> (I am not even sure you *could* type in the commands, I
think you *had*
> to press the appropriate function key).

You do. It saved them having to fit a tokenising routine
into the ROM.

So how do you distinguish 'calculator' from 'computer'? 

-tony