Hi Tony, Dwight, Yes, that pretty much sums it up - I knew that one board was the disk controller (I think it is marked as such) and I'm pretty sure that one other board has the 8085 CPU on it as you describe. Interesting, that is the first explanation of the ISIS acronym I have heard so far. Not too much explanation required on that topic - I do a bit of firmware development here at work, with the Microchip PIC series of microcontrollers. Fortunately, the PIC ICE is nothing nearly as large, slow or heavy as the MDS system in question. The MDS was used to develop many of our products up until we went to PICs a number of years ago (and well before I joined the company). The MDS was given me by an engineer here, and came with a pile of disks and no documentation. I was hoping that I could get some useful OS running, CPM would be great; I have several CPM machines already, so it's not totally foreign to me. Would I need a different CPU card, or other hardware to run CP/M? For that matter, who ported the CPM to this architecture? I assume that the MDS architecture is totally weird & proprietary... Dwight, I will look through my set of disks for the program that you request, I have no idea what is in there, other than the softs to run the ICE function. Thanks to both of you for your help, much appreciated. Bill Layer Sales Technician &lt;b.layer(a)vikingelectronics.com&gt; +----------------------------------+ Viking Electronics, Inc. 1531 Industrial St. Hudson, WI. 54016 - U.S.A 715.386.8861 ext. 210 <http://www.vikingelectronics.com> +----------------------------------+ "Telecom Solutions for the 21st Century"

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Bill, I found a lis of the docs that I have in an old message. Here it is: " Intellec Series II CRT and Keyboard Interface Manual Intellec Series II Microcomputer Development System Boot/Monitor Listing Intellec Series II Model 22X/23X Installation Manual Change 1 Installation Instructions Double Density Upgrade Kit Model 503 Rev B Intellec Double Density Diskette Operating System Hardware Reference Manual Book 2. (It's here somewhere! Just gotta find it!) Book 3. PL/M-86 Programming Manual for 8080/8085-Based Development Systems #9800466-003 Rev C MCS-86 Assembly Language Converter Operating Instructions for ISIS-II Users #9800642-02 ASM86 Macro Assembler Operating Instructions for 8086-Bases Systems #121628-003 iAPX 86,88 Family Utilities User’s Guide # 121616-003 iAPX 86,88 Family Utilities User’s Guide # 121616-002 ASM86 Language Reference Manual #121703-002 Book 4. Intellec Series III Microcomputer Development System Product Overview Intellec Series III Microcomputer Development System Programmer’s Reference Manual ISIS Credit CRT-based Text Editor User’s Guide Alter Text Editor User’s Guide iUP-200/201 Universal Programmer User’s Guide Order Number 162613-002 iUP-200/201 Universal Programmer User’s Guide Order Number 162613-001 ICE-86 In-Circuit Emulator Operating Instructions for ISIS-II Users ICE-86A/ICE-88A MicroSystem In-Circuit Emulator Operating Instructions for ISIS-II Users Book 5. ASM86 Language Reference Manual #121703-002 8086/8087/8088 Macro Assembly Language Reference Manual for 8086-Based Development Systems #121627-001 Rev A MCS-86 Assembly Language Converter Operating Instructions for ISIS-II Users ICE-86 In-Circuit Emulator Operating Instructions for ISIS-II Users iAPX 86,88 Family Utilities User’s Guide for 8086-Based Development Systems #121616-001 Rev A ISIS-II User’s Guide Book 6. Intellec Series II Microcomputer Developement System Schematic Drawings Order Number 9800554-04 Rev D Book 7. Intellec Series II Microcomputer Developement System Double-Density Diskette Subsystem Order Number 9800425-02 Rev B Book 8. Product Service Support Plan, product MDS-5055 (internal Intel Document) Book 9. A guide to Intellec Microcomputer Developement Systems Order Number 9800558B I also have a bunch of software for it but I haven't made a list." This is only a fraction of the stuff that was available from Intel! There's a long list of the stuff that was available in 1979 in McCraken's book. I'm sure Intel released more later. Joe

Hope this is not to OT (it's about OS, not hardware...) I've come to posses an install floppy set for AT&T SysV UNIX v2.1 r4, but absolutely no documentation. After trying to install it on about 10 different machines, I found that it settled in happily on (of all things) a Compaq ProlineaMT 4/33 (now u/g to P83 Overdrive and 32MB of RAM). That part is fine. Unfortunately, without documentation or even an HCL, I am pretty much in the dark. I managed to install all of the packages, but there is no networking support to be found.. ditto for C compilers, none to be found anywhere in the system. Now since we all know that C and networking are two fundamental tenets of UNIX, how might I proceed to get this box networked and on line? Sine none of the networking commands are installed (no ping, ftp, telnet etc.) I assume that the entire TCP/IP networking package was an option.. same for the C development package? Could someone provide docs, guidance, or just the wise advice to drop this project all together? :) Bill

I think you are mistaken. This *is* SVR4 of AT&T Unix, but version 2.1 I have this, but I do not have the TCP/IP or the C Compiler (well actually I have the Metaware C Compiler somewhere). If I was you, I would just abandon it and go for SCO Unix or Solaris x86 which only costs $10-$20. I abandoned SVR4 eons ago and moved over to Solaris x86... Ram ----- Original Message ----- From: "Bill Pechter" &lt;pechter(a)pechter.dyndns.org&gt; To: &lt;classiccmp(a)classiccmp.org&gt; Sent: Friday, October 13, 2000 8:12 PM Subject: Re: AT&T SysV UNIX v2.1 r4

Bill Layer wrote: Hi Bill. I've got the same distribution. It was given to me by a friend who found it in his office, left by the previous tenant. Unfortunately, some of the disks were cracked, as someone had rested something rather heavy on it. :( Most upsetting. It seems that the distribution that I have has no TCP/IP networking either. The box that they were in actually had written on it in marker "No network stuff". Now, I don't know what's actually on the disks, as they're screwed (wanna make some dd images of them for me? :) ), and the only information I have about them is that they are for "i386" machines. I wish I could be more helpful, but you've gotten further than I, as I can't even install it. :( -- Tim Harrison Network Engineer harrison(a)timharrison.com http://www.networklevel.com/

At 01:55 AM 10/15/00 -0000, you wrote: Correct. There are a couple of ways you can go with this. (1) Option 730 just adds a pair of external drives but they're connected to the existing controller and it determine what density you get so you'll end up with all of the drives being single desity. (2) OR you install the 503 mod along with option 720. The 503 mod replaces the original controller to a double density one so now all the drives are DD. (3) OR you can add option 720 which gives you the external drives along with a second drive controller uses a 8272. In this case your internal drive will be single density and the external ones will be double density. (4) Again you can add the 503 mod aand all the drives will then be DD but you'll have two controllers installed instead of only one. The addition of a pair of external drives changes a 22x model to a 23x model. FWIW There is also a 740 option, it adds a 7.3 Mb hard drive to the system. The 220 model and the 225 model come with a single density drive controller. The Intel book implies that all (most?) other models come with double density controllers but I don't think they do. For example, according to Intel, the 221 model is nothing but a 220 that was converted at the factory to operate from 230 VAC instead of 115 VAC so it should also have the SD controller. controller cards. The 503 cards use a Righto. Paxton and I were trying to sort this out. I finally had to go dig out my Intel books and figure it out. The difference between a Series II and a Series III is the ADDITION of the iMDX 557 Resident Processor Card. The card is a RPB-86 and it has a 8086 CPU. Note that the original processor is left in the machine and is still used for some tasks. I have an extra set of these cards that I'll swap for other Intel stuff is anyone is interested. The models that I know of are the 220, 221, 222, 225, 226, 227, 230, 231, 232 and 240. Whew! The 225, 226 and 227 models came with an IPC (Integrated Processor Card). It has a 4 MHz 8085A-2 CPU and 4 K of ROM and 64K of RAM. All other (22x) models came with the IPB (Integrated Processor Board). It has a 2.6 MHz 8080A-2 and 4K of ROM and 32K of RAM. The 23x models were nothing more than a 22x with the addition of the external dual disk drive. However, they also added a second 32K RAM card to 23x models that only had 32K originally (the ones with the IPB). There was also a 240 model, It was a 220 but came with a hard drive, I don't know if there were any other changes to it. I THINK a 225 was a 221 but with a IPC instead of an IPB. I think a 227 was a 222 with an IPC installed. But I don't know what a 222 was. Confused yet? OK here's how it works in a nut-shell. You start with a 220. If the factory changes it to 230 VAC you have a 221. If you make another (unknown) change you get a 222. You take those models and pull out the IPB card and replace it with a IPC and you get the 225, 226 and 227. If you take any of those six and add the external drive box and you get the 230, 231 and 232. (Notice that a 230 may have a IPB or a IPC card in it. Same with the 231 and 232.) Add a hard drive to a 220 and you get a 240. Add a Resident Processor Card and it becomes a Series III instead of a Series II. AFIK a Series III can be any configuration of RAM, drives and IPB or IPC processor. You can see that there are a LOT of combinations that don't have a specific model number. That's makes it confusing enough but then you have to remember that Intel offered lots of other cards and accessories for these and many of them were upgraded/modified by their owners so the variations are endless. FWIW Intel wasn't the only one that made parts for these. I have a A/D card from Burr-Brown and I have a list from Intel that lists at least twenty manufactures of MultiBus cards that would work in the MDS. I went through part of my spare Intel stuff and found an extra ICE-85 setup including the emulator and tradc pods and the cards for them. I'll swap them for other Intel stuff that I don't have. I also have various extra cards that I'll trade. Joe