Epson QX-10 hard drive

Jules Richardson jules.richardson99 at
Mon Feb 1 08:14:54 CST 2021

On 1/31/21 12:35 PM, Warner Losh via cctalk wrote:
> Greetings
> I recently purchased a QCS external hard disk on ebay. This was one of the
> companies that was selling DEC Rainbow hard drives. I had hoped it was an
> old Rainbow drive with interesting to me bits... Turns out it is an Epson
> QX-10 hard drive, full of interesting to bits for the QX-10 CP/M
> enthusiast. I've had trouble finding a suitable community to note this in
> should there be people around that care... so I thought I'd ask here is
> people know of good CP/M groups and/or QX-10/16 groups, mailing lists, irc
> channels, discord servers, etc I could find.

I'm not aware of anything, unfortunately. I've got a QX-10 that was 
originally one of Epson's sales demo machines, and got taken around to 
prospective customers by one of their sales reps - which does mean that it 
was well looked after and came with a *lot* of documentation (and media, 
but nothing "exciting" beyond the usual OS, Valdocs etc.).

Did you happen to take an image of the drive contents?

(hanging a hard disk off mine would be fun, but I think they were SASI to 
the external enclosure, and there was a SASI interface which plugged into 
the expansion slots - I'm not sure if the latter is documented anywhere)



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