rarest computers

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Tue Aug 3 17:27:02 2004

> Sharp plotting calculator - Forgot the model number, it's in the archives
> somewhere. A battery operated desktop calculator with 4-color pen plotter!
> This is the only calculator I've seen with a built-in plotter.

Not built-in, but the Sharp PC1500 pocket computer could take an add-on
battery-opperated plotter. The plotter was a craddle that the computer
slotted into, and it was _just_ possible to use it handheld. This used
the well-known Alps 4-pen mechanism (the narrow version of the one used
in the Radio Shack CGP115, Commodore 1520, etc).

And of course HP sold a full-size mains-operated plotter (7470 opt 003)
for the HP41 calculator (it worked with other HPIL controllers too, but
there's a ROM module for the HP41 to drive it). It's not common (yes, I
do have both the plotter and the ROM).

Received on Tue Aug 03 2004 - 17:27:02 BST

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