Epson HX-20

From: Don Maslin <donm_at_cts.com>
Date: Sat Sep 9 14:20:36 2000

On Sat, 9 Sep 2000, Mark wrote:

> Hi,
>
> I picked up a couple of Epson PX-4 handheld/laptop computers a few weeks ago.
> Have not got around to testing them yet. Any identifying text which used to
> be on the rear labels is no longer there.
>
> There is space for a plug-in device/cartridge on the righthand side above the
> keyboard. Both computers have what appears to be a 1 megabyte static RAM
> cartridge (possibly battery-backed) in this space. These must have been quite

There were alternate modules available for that space including the RAM
cartridge that yours has, a micro-tape drive and, IIRC, a modem.

> expensive when new. I opened up one of the cartridges. Text on one of the
> PCBs inside mentioned (from memory) POCKET COMPUTERS LTD 1993, so these are
> quite recent.
>
> In the EPROM sockets underneath the computer is some kind of auditing program;
> the label read
> Pocket Computers Ltd
> AUDITOR V5.2
> The labels also mention CP/M 2.2.
>
> A web search for "Pocket Computers" Auditor didn't turn up anything. Does
> anyone have any information on this company?

Take a look at ftp.epson.com/pub/hxpxqx/ where you will find a number of
files about the HX-20 including a listing of software sources. Perhaps
Pocket Computers is listed there.
                                                 - don

>
>
> -- Mark
>
>
Received on Sat Sep 09 2000 - 14:20:36 BST