30 Jan
2002
30 Jan
'02
8:57 p.m.
Any ideas from you Apple experts how I tell CP/M software
to use an 80 column card? Display is 40 col from motherboard,
all I get from 80 col card is a blinking cursor.
No switches or id on 80 col card; it has 3 EPROM sockets,
but only ROM2 & ROM3 are present. No reason why ROM1 should
have been removed, so I'm hoping it was an option.
Both video outputs and the built-in RF out all use RCA
connectors, BTW :)
And in reply to the question about SO239 (AKA UHF or 83 Series)
connectors for video, the commercial (as opposed to homebrew)
video out adapter on my PET uses one; other than that, in my
experience the mass-produced systems used either RCA or
proprietary connectors, and S100 & similar multi-card chassis
used BNCs when they had internal video.
mike
31 Jan
31 Jan
1:38 a.m.
New subject: Video provisions on S-100 frames (was Re: 80 col Apple ][)
I'd be really interested in knowing specifics about this, if you have them.
I've got several S-100 boxes, and not a one has any accomodation for video
signal from an internal source. I did, in the rar distant past, own a couple
of systems, at least one of which was from Vector Graphics, that used an
external moitor+keyboard combination resembling a terminal, which it wasn't,
but most of the S-100 arrangements I've got, including a combination from SD
Systems, which uses a video display/keyboard port board not only has no cable
that came with it, but simply provides pads to which a video cable was to be
soldered. Though I've got this hardware, I've never tried it out, as I've
always been satisfied with a serial terminal.
Additionally, I've actually never seen a 3rd-party S-100 box that made any
provision for video signal to an external monitor at all. The ones I have are
all Integrand boxes, so that's not a good example, being from only one maker,
and the CompuPro boxes I've junked had no provision for video connectors
either.
I'd be interested in knowing about
----- Original Message -----
From: "M H Stein" <mhstein(a)canada.com>
To: "'ClassicComputers'" <classiccmp(a)classiccmp.org>
Sent: Thursday, January 31, 2002 3:57 AM
Subject: 80 col Apple ][
Any ideas from you Apple experts how I tell CP/M
software
to use an 80 column card? Display is 40 col from motherboard,
all I get from 80 col card is a blinking cursor.
No switches or id on 80 col card; it has 3 EPROM sockets,
but only ROM2 & ROM3 are present. No reason why ROM1 should
have been removed, so I'm hoping it was an option.
Both video outputs and the built-in RF out all use RCA
connectors, BTW :)
And in reply to the question about SO239 (AKA UHF or 83 Series)
connectors for video, the commercial (as opposed to homebrew)
video out adapter on my PET uses one; other than that, in my
experience the mass-produced systems used either RCA or
proprietary connectors, and S100 & similar multi-card chassis
used BNCs when they had internal video.
mike
8361
days inactive
8361
days old
1 comments
2 participants
participants (2)
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edick＠idcomm.com -
mhstein＠canada.com