[chbot] Vintage computers show and tell...

[Mark Atherton]

Anyone remember the Newbear 7768 ? 6800 based, 680kHz clock (!), cost 
almost 200 quid in 1979, which was a lot of dosh. Wondered if it was 
going to be a waste of money --- then my world changed.

Bought one of these kits on an 8 x 8" board with 2k bytes external RAM 
(2 x 2114s).

Everything was entered (literally) with switches and LEDs, but 
eventually paper tape (home-made optical paper tape reader).

Home made video display unit (VDU) based on a Thompson CSF SFF96364 
which managed 1200 baud.

Wonder how you duplicate paper tape now, maybe using a photocopier and 
OCR...

Main software was CoRes (co resident editor and assembler)

Also made an EPROM programmer (2716 devices)

At work we were using 1702 EPROMs (20 min erase cycle), which needed 3 
PSU rails.

Lots of other projects, and huge learning curve for a kid.

-mark

On Tue, Sep 27, 2016 at 10:50 PM, Synco Reynders 
<synco.reynders at gmail.com <mailto:synco.reynders at gmail.com>> wrote:
>
>     Hi all,
>         The recent thread of Mike needing a floppy drive made me look
>     around my office, and I realised I have quite some old computers
>     within arms reach... some getting close to becoming museum pieces.
>     Wondering if others in the group finding the same and should we
>     have a bit of a show and tell next meeting??
>     Feed-back?
>     Synco
>     PS. I've still got my Sharp PC-1251 with printer and microcassette
>     recorder (1982). -it's what I learnt to program on. :-)
>

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