[Coco] OS9 68K

[Dave Philipsen]

I doubt it was a video connector.  More likely an early form of digital 
audio.  And you're right.  We just had a shell up on the serial port.

Dave


On 3/12/2017 9:08 AM, farna at amc-mag.com wrote:
> Date: Sat, 11 Mar 2017 23:03:15 -0600
> From: Dave Philipsen <dave at davebiz.com>
>
> Just FYI, there was a product called DigiCart made by 360 Systems that
> employed a 68000 running OS9/68k.  Like this one:
> http://www.ebay.com/itm/360-Systems-DigiCart-II-Plus-Digital-Audio-Recorder-/222270160290
>
> or this one:
> http://www.ebay.com/itm/360-Systems-DigiCart-II-Plus-Hard-Disk-Digital-Audio-Recorder-/122340510668?hash=item1c7c100bcc:g:QgoAAOSwUKxYlJrH.
>
> When I worked for a company just a few miles down the road from
> Microware we acquired one of these for a project and cracked the case
> open.  Inside, we found a 68000 and we somehow got wind that it was
> running OS9 (I think one of the folks at Microware informed us).  There
> is a serial port on the back of the unit and through some sort of
> keypress combination we were able to get a shell on the serial port.
> One of these days I may pick one up off of eBay and play around with it
> again.
>
> ========================================================
>
> Very interesting piece! The 75 ohm connections should be for a monitor,
> and I see a keyboard connector. I suppose you were using a serial terminal
> though. Would take some work to crack one! Hmm.. looked up "AES 75 ohm".
> Apparently that's an early recording industry standard for digital video?
> Standard monitor might not work. Gene Hesket may know more about it...
>
>