griff3125 Posted June 19, 2019 Share Posted June 19, 2019 I just acquired an Atari 800 with a Mosiac 64K Ram Card installed. I don't know much about it apart from what I googled, I think it's mainly used as a ram disk and there were certain apps that could take advantage of the extra memory (atariwriter). I do have the "Superdisk" utility that came with it so I can setup a ram disk, but it sadly lacks any detailed info. Does anyone have any docs on this card, specifically, I'm curious about what the install entailed and what changes were made to the motherboard. I ask because I'd like to know where the wires are going and what was changed in the event I want to yank the board in the future. Thanks much in advance for any insight. Quote Link to comment Share on other sites More sharing options...
+sm3 Posted June 19, 2019 Share Posted June 19, 2019 How about this? https://www.atariarchives.org/creativeatari/The_Mosaic_64K_RAM_Card.php Quote Link to comment Share on other sites More sharing options...
Gunstar Posted June 19, 2019 Share Posted June 19, 2019 (edited) No DOC files come up (at least on the first page of search engine) for it, but this will help you some: https://www.atariarchives.org/creativeatari/The_Mosaic_64K_RAM_Card.php I am currently planning on building my own DIY version of this board as well as a couple other memory board mods contained on boards with only a few un-pluggable wires to the mobo so they can be easily interchanged depending on what I want (at least until I can get my hands on an Incognito board). Edited June 19, 2019 by Gunstar 1 Quote Link to comment Share on other sites More sharing options...
Gunstar Posted June 19, 2019 Share Posted June 19, 2019 (edited) @sm3 beat me to it by a couple seconds! Side note to anyone: how do you properly tag someone? It's not working for me, as I do it on other boards anyway, with just the "@" symbol ahead of the name... Edited June 19, 2019 by Gunstar Quote Link to comment Share on other sites More sharing options...
griff3125 Posted June 19, 2019 Author Share Posted June 19, 2019 Thanks for the above, definitely helps! Quote Link to comment Share on other sites More sharing options...
+sm3 Posted June 19, 2019 Share Posted June 19, 2019 You can find a few items from Mosaic on archive.org as well if you want to look there, but nothing about the 64K board directly. They do have some of the newsletters I believe that might be useful and of course the manual for a 32K board. Quote Link to comment Share on other sites More sharing options...
1050 Posted June 20, 2019 Share Posted June 20, 2019 On 6/19/2019 at 10:51 AM, Gunstar said: @sm3 beat me to it by a couple seconds! Side note to anyone: how do you properly tag someone? It's not working for me, as I do it on other boards anyway, with just the "@" symbol ahead of the name... Not sure what a tag is, but I always used to use quotes like above. Can't say if that option was here yesterday either, it's going to take some getting used to, that's for sure. My problem with these quotes is I can't reconstruct with html to my liking and purpose. OR the button/method to do that is unknown to me as of yet. 1 Quote Link to comment Share on other sites More sharing options...
+Nezgar Posted June 21, 2019 Share Posted June 21, 2019 Wynn Smith, the creator of the Mosaic memory upgrade products, was interviewed on the Antic Interview Podcast #259: http://ataripodcast.libsyn.com/antic-interview-259-wynn-smith-mosaic-electronics The normal Atari 800 memory map maxxed out at 48K of RAM, 10K of ROM, and 2KB for hardware registers, leaving an unused 4KB block. To access the remaining 16KB of RAM on the 64KB mosaic board, it was divided into 4 4KB banks that mapped into that unused 4KB block of RAM, and provided a hardware register to control which bank was active. Quote Link to comment Share on other sites More sharing options...
+sm3 Posted June 21, 2019 Share Posted June 21, 2019 Regarding the tagging, it’s supposedly a new feature now with the forum upgrade. ” You can now tag someone in a post by prefixing their username with "@". For instance, if you want to tag me, you'd type "@Albert" and then choose my username from the popup that appears. This will cause my username to be highlighted in blue and I'll receive a notification that I was tagged in a post (or elsewhere). “ 1 Quote Link to comment Share on other sites More sharing options...
Gunstar Posted June 21, 2019 Share Posted June 21, 2019 (edited) 2 hours ago, sm3 said: Regarding the tagging, it’s supposedly a new feature now with the forum upgrade. ” You can now tag someone in a post by prefixing their username with "@". For instance, if you want to tag me, you'd type "@Albert" and then choose my username from the popup that appears. This will cause my username to be highlighted in blue and I'll receive a notification that I was tagged in a post (or elsewhere). “ That's what I was attempting, but I wasn't choosing the user name from a list, just typing "@Albert" (example)because that is how it works on another forum I moderate. I will try it by selecting you're name from the list. Testing: @sm3 Edited June 21, 2019 by Gunstar Quote Link to comment Share on other sites More sharing options...
+sm3 Posted June 21, 2019 Share Posted June 21, 2019 1 hour ago, Gunstar said: That's what I was attempting, but I wasn't choosing the user name from a list, just typing "@Albert" (example)because that is how it works on another forum I moderate. I will try it by selecting you're name from the list. Testing: @sm3 @Gunstar Yep, that worked! I see a notification now for it. Quote Link to comment Share on other sites More sharing options...
rchennau Posted September 16, 2021 Share Posted September 16, 2021 Does anyone know what the purpose of the jumpers are for on the Mosaic 64K Select board? There are several and are labeled 800 and 1200. All of mine are set to 800. Thoughts? Quote Link to comment Share on other sites More sharing options...
+hunmanik Posted October 7, 2021 Share Posted October 7, 2021 1 Quote Link to comment Share on other sites More sharing options...
+hunmanik Posted October 27, 2021 Share Posted October 27, 2021 Quote Link to comment Share on other sites More sharing options...
KLund1 Posted November 10, 2021 Share Posted November 10, 2021 Here is the manual i was able to borrow from Bob1200XL. The pictures are a bit hard to see, but the descriptions are pretty good. I OCR'd the file too. I have the disk for this too. But I do not have a 800 set up just now to make an ATR of it. But I will soon. Mosaic 64K Ram Select Owner's Manual.pdf 1 Quote Link to comment Share on other sites More sharing options...
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