test-drb

test-drb@ccmp.vtda.org

101090 discussions

by kaikal＠MICROSOFT.com

Hi René, I guess that would be my specialty. The PC memory map looks like this: C000 - FFFF - Various open areas depending on the individual machine, plus the BIOS B800 - BFFF - Low resolution (CGA or EGA/VGA low res/text) video (if present) B000 - B7FF - Monochrome adapter (if present) A000 - AFFF - High resolution (EGA/VGA) video (if present) 0000 - 9FFF- Base 640K I think what you mean is you'd like to use the high resolution area from A000-AFFF to increase base RAM size. The low resolution area is not contiguous with base RAM so it can't be used to increase base RAM size. The trick is, there is no RAM in this location that you can use to increase the base memory. So, you have to put RAM there somehow (no, video RAM won't work). There are various methods to do this. On a 386 or above, the virtual memory management allows a 386-up memory manager such as EMM386, QEMM386, or 386MAX to map memory into that location. On a 286, you could use various LIM 4.0 compliant expanded memory boards (e.g. Intel AboveBoard Plus) or a wacky device called an ALL Charge Card, along with special software to map memory into the location. On an 8088, you had to use a special card, which was a very simple device containing 64K or more of RAM, along with address selection switches. The card would map RAM into that location, and came with software to extend apparent DOS RAM. Kai > ---------- > From: SSE Technical Support > Reply To: classiccmp(a)u.washington.edu > Sent: Friday, August 08, 1997 12:18 AM > To: Discussion re-collecting of classic computers > Subject: FW: XT COMPUTERS > > > > -----Original Message----- > From: Mr. Self Destruct [SMTP:more@camlaw.rutgers.edu] > Sent: donderdag 7 augustus 1997 19:26 > To: Rene van der Meer > Subject: Re: XT COMPUTERS > > > On Wed, 6 Aug 1997, Rene van der Meer wrote: > > > Hi my name is René > > Hello. > > > I am looking for a program that allows me to break the 640kb and > uses the > > cga memory address to make 768kb I am not sure if this exists I > belief so.. > > I've heard of such programs, but many were machine specific and/or > flaky. > I'd recommend asking the fellows at the classic computer mailing list > at: > "classiccmp(a)u.washington.edu" > > > it is for a KAYPRO XL > > my direst computer that I ever had... > > please help me ... > > my e-mail address is renemeer(a)xs4all.nl > > I to like old junk > > Glad to hear that! > Les >

28 years, 7 months

Second Test

by allisonp＠world.std.com

<chats scheduled and publicised. A look at the S-100 would be <interesting. being as s100 has been my base of ops for z80(and others) for many years it would be more interesting to me as well. Allison

28 years, 7 months

Second Test

by carl.friend＠stoneweb.com

On Fri, 8 Aug 1997 01:43:36 -0500, Brett spake thusly unto us: > Allison, Andy, Brett, Carl, Frank McConnell, Guest, Jim Willing, Kai, > Thorhallur, Zane, dseagrave, and spc all came over to the chatroom. > A good discussion about TI Silent 700's ensued. I either arrived late for the S700 chat, or departed early, so I missed it. The software seems to work well enough, although it some- times slowed to a crawl (which could have been my comms line). Next time, I'll try to be _awake_! (And running a different browser - I think Lynx may be excellent for the task.) > I don't know if this is something anybody wants to use. On the surface of it, it looked very interesting; I'm certainly game for another round. The only fly-in-the-ointment is getting chats scheduled and publicised. A look at the S-100 would be interesting. ______________________________________________________________________ | | | | Carl Richard Friend (UNIX Sysadmin) | West Boylston | | Minicomputer Collector / Enthusiast | Massachusetts, USA | | mailto:carl.friend@stoneweb.com | | | http://www.ultranet.com/~engelbrt/carl/museum/ | ICBM: N42:21 W71:46 | |________________________________________________|_____________________|

28 years, 7 months

The strange devices that were pictured.

by thedm＠sunflower.com

I've been snooping around and I think that box with the label Supra on it, is an external SCSI HOST adapter for an ATARI ST.

28 years, 7 months

Free things available for UK collectors...

by kevan＠motiv.co.uk

Just found this in uk.comp.misc... Does anybody out there collect old Prime kit. IBM, DEC, DG seem to be popular, so what is it about Primes that make them unpopular. I have enquired about the size of this Prime because I know they made a small 50 series machine because we used to have one when I worked for Computervision. ------- Forwarded Message From: Kevin Bradly <sales(a)bradassoc.co.uk> Newsgroups: uk.comp.misc Subject: Old equipment (Prime, Sun386 etc.) for FREE Date: Fri, 8 Aug 1997 09:47:01 +0100 Organization: Bradly Associates Ltd Message-ID: <3wf0lAAF0t6zEABY(a)bradassoc.co.uk> Hi We have some redundant computer equipment that we are happy to give away for free providing it is collected from our premises. The following is available: PRIME 2350, 4Mb memory, 258Mb disk, 60Mb tape cartridge Mag-Tape unit, PT250 terminal SUN 386i workstation, 8Mb memory, 327Mb disk, 19" colour monitor, 60Mb tape cartidge DEC Rainbow PC100+, 10Mb disk, graphics board, MS-DOS, MS-Fortran. DEC VT125 graphics terminal, greyscale, 768 x 480 resolution PERICOM 7350 colour graphics terminal, 19" monitor, 1024 x 768 PERICOM MG200 B/W graphics terminal SIGMA 5688 colour graphics terminal Please help me clear some space in our office or suggest any other good rest-homes for this old retired equipment. Kevin Bradly Bradly Associates Ltd Manhattan House 140 High Street Crowthorne Berks. RG45 7AY UK Tel: +44 (0) 1344 779381 Fax: +44 (0) 1344 773168 e-mail: sales(a)bradassoc.co.uk URL: http://www.bradassoc.co.uk/ ------- End of Forwarded Message

28 years, 7 months

CCC : Atari machines

by thedm＠sunflower.com

I recently aquired a 1040 STf, what's the deal with the f designator, anyone know? Im still workin on finding a monitor. ---------- > From: Hans Pufal <hans1(a)filan00.grenoble.hp.com> > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: CCC : Atari machines > Date: Thursday, August 07, 1997 12:19 AM > > OK, here is the complete listing from the CCC of the machines made by > Atari. Please consult your favorite references and confirm/deny or > complete the missing data. > > I would like a month/year for the first customer shipment or the first > public working demonstration of the machines. Please provide references > where possible, if they are on-line then so much the better. > > I am also planning to extend the information per machine to include data > about processor used, word-size, memory configurations etc. so feel free > to add that data also. > > I have set the reply to address to my personal Email so as not to > clutter the mail list. You can always go to the CCC to recover the > updated data. If there are enopugh requests I can post an updated > preview table here before the CCC gets updated. > > I would also be interested in a potted history of the manufacturer, date > started where located and significant events in its history. I know most > of this is probably available on the NET for Atari, but not for some of > the more obscure companies. > > CCC list for Atari > > I think I am correct in saying that all Atari machines were designed in > the USA. > > 400 Dec-78 > 800 1979 > 1200XL 1982 > 600XL 1983 > 800XL 1983 > 1040 ST 1985 > 130XE 1985 > 520 STfm 1985 > 520 ST Jan-85 > 65XE Jan-85 > Mega ST 1987 > Mega STe 1987 > XE Game system 1987 > STe 1990 > TT 1990 > 1024 STe > 1040 STf > 1040 STfm > 260 ST > 2600 > 520 ST+ > 520 STe > 520 STm > 800XE > ATR-8000 > Falcon 16 > Mega 1 > Mega 4 > STacy > STbook > TT/16 > > Thanks for you help > > Hans B Pufal

28 years, 7 months

FW: XT COMPUTERS

by rene＠spartacom.nl

-----Original Message----- From: Mr. Self Destruct [SMTP:more@camlaw.rutgers.edu] Sent: donderdag 7 augustus 1997 19:26 To: Rene van der Meer Subject: Re: XT COMPUTERS On Wed, 6 Aug 1997, Rene van der Meer wrote: > Hi my name is René Hello. > I am looking for a program that allows me to break the 640kb and uses the > cga memory address to make 768kb I am not sure if this exists I belief so.. I've heard of such programs, but many were machine specific and/or flaky. I'd recommend asking the fellows at the classic computer mailing list at: "classiccmp(a)u.washington.edu" > it is for a KAYPRO XL > my direst computer that I ever had... > please help me ... > my e-mail address is renemeer(a)xs4all.nl > I to like old junk Glad to hear that! Les

28 years, 7 months

Second Test

by danjo＠xnet.com

Allison, Andy, Brett, Carl, Frank McConnell, Guest, Jim Willing, Kai, Thorhallur, Zane, dseagrave, and spc all came over to the chatroom. A good discussion about TI Silent 700's ensued. The largest number at one time was 7 and it didn't even dent my ISP. Well, as far as I know 8-) For most of us this is something we have heard about but not really tried. Bill Kendrick's Free Chat seems to be pretty good but not really ready for heavy usage. I am in comms with him to see if we can't get it beefed up. The next release is supposed to have multiple chatrooms so we could have a wider range of subjects. I don't know if this is something anybody wants to use. There can be a log of messages that could be condensed to keep everybody informed of any info that is dispensed on the chatroom. This is basically a test for Special Chats - in which case I think the usage would go heavier than 7 - maybe upto 40 at one time. Maybe we could have something like PDP-11 nights or Amiga nights or something like that. I would like to get *authorities* involved. Maybe "Dr. S-100" would like to host a S-100 run - something that is useful anyway. BC

28 years, 7 months

Right Now!

by danjo＠xnet.com

We are running the Chatroom again for another test - come join us! We are trying to bring my ISP to it knees - don't worry - can't happen. URL: http://www.xnet.com/~danjo/classic/chat/ The Chat software will belly up LONG before the server 8-) We will be on until - oh Midnight CST - maybe 8-) BC

28 years, 7 months

Help identify these hardware items! (picture links)

by kaikal＠MICROSOFT.com

Please help identify these pieces of hardware! I finally got around to shooting some pictures of these to help ID them. Item #1: An 8080 prototype board. Who made this? http://pw1.netcom.com/~mir/S001I001.JPG Item #2: A SCSI hard disk interface box for some home computer. It has a 50-pin female edge connector on the left, an edge connector on the upper right labeled 'printer' and a 50-pin male pin connector for the hard disk. What machine is this for? http://pw1.netcom.com/~mir/S001I002.JPG Item #3: A front panel. The switches are labeled CLR, STP, MRD, MWR, ADR, EXE and numbers 2 through 15. What mainframe did this come from? http://pw1.netcom.com/~mir/S001I004.JPG Item #4: Another front panel. No bezel on this one. Has black IMSAI-style paddle switches and a hex keypad. http://pw1.netcom.com/~mir/S001I005.JPG thanks all! Kai

28 years, 7 months

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test-drb