27 Jan
2014
27 Jan
'14
12:24 p.m.
----- Original Message -----
From: "ben" <bfranchuk at jetnet.ab.ca>
To: <cctalk at classiccmp.org>
Sent: Sunday, October 27, 2013 12:17 AM
Subject: Re: Compaq CGA card, schematics?
I'm replying a little late to this (3 months late!), but to answer the
question: Yes!
I remember using a light pen in primary school as part of an educational
software package for the BBC Micro around 1986/7. We had to use it on a
transparent sheet which had vertical and horizontal coloured lines on it
(used by the light pen to detect the movement). Since then, I haven't ever
used one since - however I do own one for my Amiga :)
Regards,
Andrew B
aliensrcooluk at yahoo.co.uk
On 10/26/2013 5:28 PM, Fred Cisin wrote:
>>> Are you sure it's the light pen header? The IBM CGA card has 2 header
>>> plugs on it, one fo the a light pen, the other for a modulator. The
>>> composite signal goes ot the latter.
> On Fri, 25 Oct 2013, Philip Andrews wrote:
>> There is a very good possibility I got the two mixed up looking at the
>> board. They aren't labeled.
>
> In the "early" days of MDA and CGA, "EVERY" video board had a 6
pin
light
> pen connector. The boards that had that AND a 4
pin (composite and
power)
connector were
CGA. THAT was how you identified the boards!
Did anyone ever USE a light pen?