Search found 365 matches

by dave
Wed Aug 14, 2013 6:12 pm
Forum: OSI discussion, thoughts, projects
Topic: been a while...
Replies: 14
Views: 12232

Re: been a while...

Steve, congratulations. I hope the machine works. If not, post here what it is doing, and let's get you a working machine.
by dave
Thu Aug 08, 2013 7:29 pm
Forum: OSI discussion, thoughts, projects
Topic: it's like an elephant graveyard in my hobby room
Replies: 2
Views: 2488

Re: it's like an elephant graveyard in my hobby room

Good to hear from you! I've got shelves full of partly working machines as well. I will have to pick one machine and get it fully working so I can get to my planned OSI projects. And then I've got a never-ending supply of projects afterwards! Definitely let us know what happens when you start poking...
by dave
Thu May 09, 2013 4:08 pm
Forum: Introductions and Reminiscence
Topic: Superboard II owner and replica creator
Replies: 3
Views: 6526

Re: Superboard II owner and replica creator

That's awesome, Vince! I've been moving and have only intermittent internet access for a few more days, so I've been a bit out of touch. I can't wait to see the final design!
by dave
Wed Apr 03, 2013 7:18 pm
Forum: Introductions and Reminiscence
Topic: Superboard II owner and replica creator
Replies: 3
Views: 6526

Re: Superboard II owner and replica creator

Vince, This is awesome! The disk interface itself is less of an issue than finding working disk drives and usable floppies. I do have some working disks for the C1, and there are disk images (essentially raw dumps) for the C1 in Mark S's emulator package (http://osi.marks-lab.com/). I would like to ...
by dave
Tue Mar 26, 2013 9:29 pm
Forum: Introductions and Reminiscence
Topic: Computer Junkie
Replies: 2
Views: 4337

Re: Computer Junkie

Welcome to the forums!

Thanks for posting that. Very interesting stuff! If you ever do get your superboard up and running, it would be awesome if you are able to retrieve and share with us some of your projects. I hope to hear more from you here on the forums.

Dave
by dave
Thu Mar 21, 2013 9:01 pm
Forum: Files (software, documentation, images, projects)
Topic: SOFTWARE
Replies: 2
Views: 3915

Re: SOFTWARE

Hi Graeme, Good to hear from you! I just received a very interesting 8" floppy system fitted with relatively newer half-height 8" drives, as well as a similar stack of disks, including the UCSD p-system with pascal and fortran compilers, and more. We should compare notes. Unfortunately, I won't be a...
by dave
Wed Mar 13, 2013 7:41 pm
Forum: OSI discussion, thoughts, projects
Topic: C1P Plastic case on ebay
Replies: 2
Views: 3876

Re: C1P Plastic case on ebay

Hi Steve, thanks for the first post in 2013! That's a nice unit--those plastic cases are hard to come by.

It seems that our friend Bill S. won it, which is awesome, especially at that price! Congratulations Bill! It would be great if you can post some pictures once you have it up and running.

Dave
by dave
Thu Oct 18, 2012 3:13 pm
Forum: Introductions and Reminiscence
Topic: Generic Computer Products & Portland Board
Replies: 3
Views: 5572

Re: Generic Computer Products & Portland Board

Welcome Robert! Thanks for posting here. I actually have a Color-Plus board (photo below). You may have noticed that the documentation is actually on my wish-list on the front page. However, I suspect that the 9918 data sheet will go a long way toward that end. It's a shame the drivers and docs are ...
by dave
Mon Oct 08, 2012 3:33 am
Forum: OSI discussion, thoughts, projects
Topic: Help needed getting MPI 51 floppy drive working
Replies: 8
Views: 6255

Re: Help needed getting MPI 51 floppy drive working

Assuming you used (Ed's?) rawdump utility, then that is not what you should be seeing. There's a great article in the journals section of the archive (link here) , Compute #20, p 136, describing the format of track 0 and the other tracks, and this does not match the expected format for track data. I...
by dave
Sat Oct 06, 2012 12:37 am
Forum: OSI discussion, thoughts, projects
Topic: Funky 540 Video board on 4P
Replies: 3
Views: 3478

Re: Funky 540 Video board on 4P

Hi Phil, From the picture, you have the same line over and over again. However, the column counters seem to be fine, as do the row counters as far as the 8 rows of each character. That should prompt a look at the row counter chain farther down the line; perhaps U5H at the end of the the row divider ...