test-drb April 2000

test-drb@ccmp.vtda.org

159 participants
427 discussions

by flo＠rdel.co.uk

I've just obtained an RML 480Z. This machine was commonly in use in schools in the UK during the 80s, as an alternative to BBCs or Spectrums under a government initiative to keep our computer industry alive. Unfortunately, there are no cables or documentation with it. It has a large array of DIN sockets at the back for cassette, two monitor connections, and two serial ports. Does anyone have the pinouts for these sockets? I'll email Research Machines as well to see if I can obtain any documentation, but the only reference to 480Z on their web site is on the Y2K page, where it says that they don't have a real-time clock.

24 years, 8 months

New stuff and lots of Digital help

by dogas＠leading.net

>> 4. I'm need a mouse and monitor cable for a VaxStation 3100. > >Well, I run mine with a VT420 for a head. Shoot, most of my Alpha's don't >even have Monitors attached to them, and NONE of the VAXen do. > > Zane Zane, thanks for the info and suggestions. You talked me into leaving the uVax2 alone with its Ultrix... And I'm not sure about the HSC-70, but it came in as part of the 11/44 when it was scrapped. So, does anyone have any extra Dec Modified Modular Jacks (MMJ's) for the console port or the odd SCSI cables for the VaxStation 3100 or know where they can be found? Regards - Mike: dogas(a)leading.net

24 years, 8 months

Nov 1976 Interface Age magazine

by paulrsm＠ameritech.net

Does anyone have the November 1976 issue of Interface Age magazine? There is an article by Steve Wozniak publishing 6502 floating point routines. I have the August 1976 Dr. Dobb's Journal with the same or similar information. I want a copy of the Interface Age article so I can compare the two.

24 years, 8 months

CPU upgrades, pt. II

by allisonp＠world.std.com

>>> As my internal network progresses this box has value as I have a SMC 10bt >>> NIC for it. I figure OS/2 warp V3 or Win3.1 would be a good os for it. >>> Being 286 there are few unix based OSs with a networking that run well >>>>> on it. >>the only version of OS2 that will work on the mod50 is 1.3. any OS2 version >>with built in windows support requires 386 or higher. you can put in various I checked, V3 wants 386 or higher.... ok, I have a box for that. I do have win 3.0 and 3.1 with 286 support in hand those I have lanman and windows networking support. FYI: the NT4 Server disks have client drivers and networking support for DOS, WIN3.x, OS/2 and w9x. Lanman and TCP/ip. >>memory cards to goto max supported mem of 16meg. plus, the hard drive has >>bus attachment with only 160meg size being the biggest i've seen. Disk is not problem as I have a 120 mb drive, enough for this use. >I'm not sure, but I suspect that getting any kind of networking for >OS/2 V1.3 is going to be difficult. IIRC, it doesn't come with networking No plan to run OS/2-v1.3 don't have it either. >Warp 3 was the last version I ran, and I don't remember it having any >networking software either. It does if you have the bonus pak. I also have the NT4 clients kit for OS/2 V3. I'd still like to bump it up to 2MB if possible. Allison

24 years, 8 months

disposing of computer junk was Re: Computerworld Article

by xds_sigma7＠hotmail.com

There's no problem... just give it to me.. Will J ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

24 years, 8 months

CPU upgrades, pt. II

by SUPRDAVE＠aol.com

In a message dated 4/14/00 8:09:22 PM Eastern Daylight Time, peter.pachla(a)wintermute.org.uk writes: > Hi, > > > I'm going to guess that it probably doesn't want just simple > >72-pin SIMMs. I believe you need True Parity 72-pin SIMMs for > >this beasty. > > Actually, I forgot about the SIMMs in my PS/2 9595....I wonder if those > would work (I've not had much success trying them in non-PS/2 machines)? > > BTW I wasn't aware that there were 72-pin SIMMs that didn't provide true > parity. I'd always assumed this was a cost cutting phenomenon limited to > 30-pin SIMMs? :-( 9595 uses either parity or ECC simms. ps2 memory has presence detect features as well so the PS2 can query the type of memory installed. DB Young ICQ: 29427634 view the computers of yesteryear at http://members.aol.com/suprdave/classiccmp/museum.htm --You can lead a whore to Vassar, but you can't make her think--

24 years, 8 months

Freebie docs

by CLASSICCMP＠trailing-edge.com

Time to clear the shelves. All available for the cost of shipping - pick and choose what you can use, but hurry, because it's first-come first-served! 1. VT55 Users' Manual (xerox copy) + IDS 440 Paper Tiger Owners' Manual (copy) 2. Teletype Model 40 User's Guide (original) 3. Kennedy Model 9100 Digital Tape Transport Operation and Maintenance Manual (original) 4. ITT XTRA Personal Computer repair manual (xerox copy) -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

24 years, 8 months

CPU upgrades, pt. II

by mgregory＠vantageresearch.com

Hi Pete, I can't help with your question, but you may want to post it on comp.sys.ibm.ps2.hardware. There are a lot of extremely knowledgeable (if not fanatical) MCA enthusiasts there (notably Peter Wendt, Louis Ohland, and Bruce Lane) and the signal to noise ratio is high. The group helped me a lot in reviving a PS/2 Model 8595 server last year. Regards, Mark "Now if only I could find some 1 by 4 static column ZIP DRAMs" Gregory -----Original Message----- From: Peter Pachla <peter.pachla(a)wintermute.org.uk> To: Classic Computer <classiccmp(a)classiccmp.org> Date: Thursday, April 13, 2000 1:36 PM Subject: CPU upgrades, pt. II >Anyone come across an "XTEND MICROPRODUCTS" processor upgrade card for MCA >machines? > >I've found one inside my PS/2 Model 50, which I was previously unable to >identify as the markings on the PCBs are hidden inside the "sandwich" >IYKWIM. > >Anyway, it appears to replace the onboard '286(?) with a '486SLC (no real >clues as to clock speed, but could be 25MHz) and has a socket next to the >processor which I'm assuming is for a math co-processor? > >Would I be correct in assuming that the system will not start up if the >72-pin SIMM sockets on the upgrade board are empty....I've never gotten very >far with this machine as I don't have any 72-pin SIMMs to try in it? > > > TTFN - Pete. > >-- >Hardware & Software Engineer. Sound Engineer. >Collector of Arcade Machines, Games Consoles & Obsolete Computers (esp DEC) > >peter.pachla(a)wintermute.org.uk | www.wintermute.org.uk >-- > > >

24 years, 8 months

CPU upgrades, pt. II

by peter.pachla＠wintermute.org.uk

Anyone come across an "XTEND MICROPRODUCTS" processor upgrade card for MCA machines? I've found one inside my PS/2 Model 50, which I was previously unable to identify as the markings on the PCBs are hidden inside the "sandwich" IYKWIM. Anyway, it appears to replace the onboard '286(?) with a '486SLC (no real clues as to clock speed, but could be 25MHz) and has a socket next to the processor which I'm assuming is for a math co-processor? Would I be correct in assuming that the system will not start up if the 72-pin SIMM sockets on the upgrade board are empty....I've never gotten very far with this machine as I don't have any 72-pin SIMMs to try in it? TTFN - Pete. -- Hardware & Software Engineer. Sound Engineer. Collector of Arcade Machines, Games Consoles & Obsolete Computers (esp DEC) peter.pachla(a)wintermute.org.uk | www.wintermute.org.uk --

24 years, 8 months

New stuff and lots of Digital help

by dogas＠leading.net

Hi all, I knew that hanging aound you nuts wouldn't be good for my computer collecting dementia. ( reference http://users.leading.net/~dogas/COMPOSITE.jpg ) Until recently, I've kinda resisted adding Dec equipment due to storage concerns. Until recently... So, here's my digital stuff... http://users.leading.net/~dogas/classiccmp/digital/digital.htm ...that I can use some help with... 1. I've got an 11/05 missing a KD-11B processor board #1 (M7260) 2. I have no space currently for the 11/44 and MicroVax 3600 and will entertain any 'hosting' options 3. My MicroVax II is booting into Ultrix 4.5 and I'd rather learn VMS 4. I'm need a mouse and monitor cable for a VaxStation 3100. 5. One of my Heathkit H-27 floppies is broken and I also need an os for it. Any suggentions for any of the above problems would be appreciated. In the meantime, back to the classiccmp archives. Hey, I also found two Honeywell 316 minicomputers too, check out... http://users.leading.net/~dogas/classiccmp/h316/h316.htm Cheers. - Mike: dogas(a)leading.net

24 years, 8 months

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test-drb April 2000