test-drb February 2003

test-drb@ccmp.vtda.org

337 participants
780 discussions

by acme＠ao.net

Lawrence -- Most likely the manual you have is for the Xerox 16/8. Later -- Glen 0/0 > Basicly it was the CP/M system ported to the Intel > CPU. Along with the Zenith, the DEC Rainbow used it > (and CP/M-80, CCP/M, MSDOS). TMK both had dual > x80 and x86 processors. I also have a binder put out by > Xerox which has Digital Researches original manual > CP/M-86 Programmers Guide, so possibly Xerox had a > machine that used it. It's dated 3rd edition, January 1983 > I believe the OS is still available out there, possibly on > Tim Olmsteads old site now run by Gene Buckle. > > Lawrence > > > On 25 Feb 2003, , Tillman, Edward wrote: > > > Hmm... Would anyone be willing/able to explain the CP/M-86 > > OS to me -- either on or off the list? I'm still new enough > > that DOS was my world until Windoze came along... > > > > Cheers > > > > Ed > > San Antonio, Tx, USA

21 years, 8 months

Check out this TI99/4 on eBay

by acme＠ao.net

From: TeoZ <teoz(a)neo.rr.com> Date: 02/25/2003 11:18 PM > Its funny to me how a computer with a crappy keyboard like that model is > worth so much more then the better later version with a proper keyboard. The > computers I collect actually get used so if I ever wanted a Ti it would be > the one with the nicer keyboard. My first computer was a timex 2068 and > learning to program on chicklet keyboards sucks. Yeah, well, for those of us who started with a ZX81/TS1000, the TS2068 keyboard was a big step up :>) Later -- Glen 0/0

21 years, 8 months

SCSI cards

by Robert_Feldman＠jdedwards.com

IBM PC-DOS 3.30 could support 4 partitions, one Primary and 3 Extended. The primary partition is limited to 32MB. Extended partitions can be divided into a number of logical drives, each limited to 32MB. What limits the number of ligical drives (beyond the disk capacity) is the availability of drive letters: the primary partition is assigned to Drive C: (unless you have more than two floppy drives), and the logical drives get letters from D: through Z:. By my calculations, with all 24 hard drive letters assigned, the limit is 768MB. -----Original Message----- From: Ethan Dicks [mailto:erd_6502@yahoo.com] Sent: Wednesday, February 26, 2003 8:39 AM To: cctalk(a)classiccmp.org Subject: Re: SCSI cards --- Geoff Reed <geoffr(a)zipcon.net> wrote: > I'm pretty sure that msdos 3.11 supported multiple partitions :) It does. I have a PS/2 Model 30 (ISA) with a 50MB RLL drive replacing the original IBM IDE-ish drive. Two partitions under MS-DOS 3.11, one 30MB, one 20MB. The problem is that there is a small number of partitions possible (I don't recall if FDISK works the same way under 3.x as it did later), certainly no more than 4 primary partitions. DOS 4.x came out (as bad as it was) before 200MB drives were common. By the time "everybody" was buying "larger" drives, DOS 5.0 was out, solving several problems with historical baggage. > also if I had a SCSI controller in the beastie I'd probably go on the > quest for rainbow Venix :) Hmm... I would expect you'd need a Venix driver for it. If you _really_ wanted a challenge, you could port Minix to the Rainbow. Sources are available. Writing a Minix driver for the FDC might be interesting (not sure how much suitable documentation exists). -ethan

21 years, 8 months

RSX11M passwords, (was: Help with my PDP 11/73)

by fm.arnold＠gmx.net

cctech-request(a)classiccmp.org schrieb am 25.02.2003: >From: <chu(a)verizon.net> >To: <cctalk(a)classiccmp.org> >Subject: Help with my PDP 11/73 >Date: Tue, 25 Feb 2003 12:36:31 -0800 > >I have gotten my PDP 11/73 to >start up and go through an initialization >script for RSX-11Mplus. However, I do not >know any uids/passwords, so I cannot >login; I can only watch the script go by. >I am able, while the script is running, to break >into MCR and run commands like PDP and DMP. >I am able to dump in octal >some of the files like [0,0]001054.DIR;1. >Does anyone know where the user names/passwords >are stored? My memory says that the maybe >they are not encrypted? Is that so? > The passwords are stored in a file [0,0]RSX11M.sys if I recall it correctley. Should be a rather small file, just pip it to the printer to see it, it should be an ASCII-file. I think that after version 3.2 of rsx11m passwords were encripted, before that, in plain text. Copy this file to some other media and delete it from your system disk, After a new cold start you should have an open system. with RUN $ACNT you can create new user-accounts if you desire. Frank

21 years, 8 months

Floppy drive for Zenith 100

by Edward.Tillman＠valero.com

Hmm... Would anyone be willing/able to explain the CP/M-86 OS to me -- either on or off the list? I'm still new enough that DOS was my world until Windoze came along... Cheers Ed San Antonio, Tx, USA > -----Original Message----- > From: cctalk-admin@classiccmp.org@PEUSA On Behalf Of acme(a)ao.net > Sent: Friday, February 21, 2003 4:13 PM > To: cctalk(a)classiccmp.org > Subject: Re: Floppy drive for Zenith 100 > > From: Vintage Computer Festival <vcf(a)siconic.com> > Date: 02/20/2003 7:58 PM > > > On Thu, 20 Feb 2003 acme(a)ao.net wrote: > > > > > > OR you can get a copy of MS-DOS 4.00 and patch it to run on the > Z-100. > > > > > > Jeez, Joe, now I'm really gagging. MS-DOS on a Z-100? Yuck. > > > > The Z-100 was intended as a dual OS machine. You had the best > > (presumably) of both worlds: CP/M and MS-DOS. > > Sure -- that's how I set mine up, but to me, running MS-DOS on it makes it > too > much like a run-of-the-mill PC, whereas running CP/M-86 gives it more of a > "vintage" flavor. Make sense? (I'm not feeling very articulate today) > > Later -- > > Glen > 0/0 [demime 1.01a removed an attachment of type application/ms-tnef]

21 years, 8 months

Lambda Compudialer?

by rigdonj＠cfl.rr.com

Anyody know anything about a Lambda Compudialer 729? It looks kind of like a desktop calculator but it's actually a phone dialer. It's not the automatic dialer advertised by those telephone SCAMMERS Compudial. This dates from 1979. Joe

21 years, 8 months

Floppy drive for Zenith 100

by Edward.Tillman＠valero.com

I Don't know that it is, or at least don't know if the system will acknowledge its full capacity. CPUs and RAM were pretty small then, and the BIOS didn't like being pushed for more than 320k. Before asking if the system can handle it, you might wanna look into the BIOS, and see if *it* can handle it. Cheers... Ed San Antonio, Tx, USA > -----Original Message----- > From: cctalk-admin@classiccmp.org@PEUSA On Behalf Of "Hurd, > Kenneth Steven CIV" <kenneth.hurd(a)navy.mil> > Sent: Wednesday, February 19, 2003 8:58 AM > To: cctech(a)classiccmp.org > Subject: Floppy drive for Zenith 100 > > Hello, > > Do you know if it is possible to install a 1.44MB floppy drive in a > Zenith > 100? > > Thank you. > > Ken. [demime 1.01a removed an attachment of type application/ms-tnef]

21 years, 8 months

SCSI cards

by healyzh＠aracnet.com

> >I just wish I could find the SCSI controller that a German company made > >for the DEC Rainbow. it'd be nice to pull the 20 meg HD out and drop a > >500 meg SCSI in it's place :) > > Wow! Is this documented? That *does* sound cool. Though I'm not sure just > how long it'd take to defragment... :-) > How did it work with the OS's, which were limited to disk sizes nothing > like 500 Meg? > - Mark That's a valid question, how big of an drive will the OS's on a Rainbow support? I'm guessing you might be limited to 30MB, even if you've a bigger drive in the system. IIRC, CP/M and old versions of DOS only support up to 30MB. Zane

21 years, 8 months

STOP! (RE: Let the witch trials begin! Re: OT: Re: Going OT R e: (no subject))

by Edward.Tillman＠valero.com

Concur. > Guys. Stop. Topic. Nuf said. [demime 1.01a removed an attachment of type application/ms-tnef]

21 years, 8 months

Help ID this board...

by petrock00＠hotmail.com

Hey, I was wondering if someone could help me ID this card. I found this board in an old Macintosh IIx at a swap meet... When I opened up the case I saw this big (about 12 inches long and 4 inches wide) BLUE board plugged into one of the NuBus slots. It has two large chips on it with the markings Xilinx XC2018-70 PC84C. There is only one port on the card that looks like a 9 pin VGA or serial port. It has a hand written serial number (1570156), and a part number of 10008 Rev#2. There is only one sticker on the card that says "1990 LTI; All Rights Reserved; Ver DPDII 52290H" Does anyone have a clue? Since the board is blue, I figured that its probably a prototype of something, maybe a video card?? Thanks in advance... --Rob

21 years, 8 months

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test-drb February 2003