- test-drb@ccmp.vtda.org - classiccmp.org

by pete＠dunnington.u-net.com

On Jun 11, 14:44, Jules Richardson wrote: > > The information I have gives the makeup of each of the gap types in > terms of bit patterns, counts, what clock transitions are missing for > MFM formats etc. > > Question is, is this a standard? I mean, for any disk using MFM or FM > recording are these bit patterns going to be the same? Or is it > dependant on the controller chip being used? So long as it's FM/MFM it's pretty much the same for any controller -- otherwise disks wouldn't be so interchangable :-) If you want an external floppy, why go to a lot of effort when all you need is one of the old cards that had an external connector? It's normally a 37-pin D-connector, with a few pins used to supply the power. Of course they're ISA cards, so you'd need a machine with ISA slots, but your reference to "ISA bus hang-ups" implies you have that. You also need to be able to set the card to be the second floppy controller (but most of the ones with external connectors have that capability) or disable the on-board floppy controller (if there is one -- but most older boards can do that too). -- Pete Peter Turnbull Network Manager University of York

22 years

6
6
0 0

AMC/AMD Z-8000 Multibus pictures

by rigdonj＠cfl.rr.com

I just posted some pictures of the AMC/AMD Z-8000 Multibus chassis and cards that I found last week at <http://www.classiccmp.org/hp/amc/>. The chassis and CPU card are marked Advanced Micro Computer. AMC was a short lived division of Advanced Micro Devices (AMD). The CPU card is marked 96/4116 Monoboard. The other two cards are wire wrapped. Most of the ICs on them are SSI ICs but the one card has a bunch of Singnetics PLS 105N Programmable Logic Sequencers. Joe

22 years

1
0
0 0

HP 64000 in Kansas City

by Bill.Bohan＠i-o.com

How much are they wanting for it? Bill Bohan 972-234-3950 x52 Design Engineer

22 years

1
0
0 0

Free Dec Boards

by pspan＠amerytel.net

Hi all, Thanks for contacting me privately. There were two people that were off by the same amount so I will contact them seperately. The number was 53 for those who were interested. I had one guess of 48 and another of 58. Thank you to everyone that responded and I am sure that these boards will go to a good home. Phil

22 years

1
0
0 0

HP64000

by Bill.Bohan＠i-o.com

The only thing I could contribute is that there is a Software package that emulates the HP64000 In compiling code, free to download. You probably already know this. Is there another HP64000 available? I could possibly get copies of manuals and SW from a place I used to work at. Bill Bohan 972-234-3950 x52 Power Supply Design Engineer

22 years

1
0
0 0

WARNING: RANTING COMPUTER NUT...

by melamy＠earthlink.net

it is still a major waste of bandwidth... -----Original Message----- From: Paul Thompson <thompson(a)new.rr.com> Sent: Jun 15, 2004 1:06 PM To: Steve Thatcher <melamy(a)earthlink.net>, "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Subject: Re: WARNING: RANTING COMPUTER NUT... On Tue, 15 Jun 2004, Steve Thatcher wrote: > all." This list is for classic computers. Any chance you all can keep > your personal feelings from wasting email bandwidth. > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> This list supposedly allows for Off-Topic posts. cc-tech is the list you want.

22 years

1
0
0 0

VT55 Programming Manual

by dbetz＠xlisper.mv.com

Does anyone want a copy of the DEC VT55 Programming Manual (AA-4949B-TC)? I have the manual but have never even seen the terminal. Anyone want it?

22 years

3
2
0 0

Anyone heard of Gespac?

by Mike.Neal＠egnhst.nhs.uk

I stumbled across your question whilst looking for something else. I don't know much but.......I can tell you that in a Linear Accelerator (used for treating cancer with high energy photons (X-rays) or electrons, there is sometimes a system called Portal Vision which allows digital images of the treatment site to be taken during treatment. For Varian machines, the cassette holding the image capture device is on a retractable "arm" controlled by a control system on a GESPAC G-64/96 bus. CPU is MC68HC000 and the operating system is OS-9. You may have an R arm controller or more likely some other OS-9 based system. Mike Neal **************************************************************************** The information in this email and in any attachment(s) is commercial in confidence. If you are not the named addressee(s) or if you receive this email in error then any distribution, copying or use of this communication or the information in it is strictly prohibited. Please return it to the sender and delete all copies. Thank you. Whilst e-mail and attachments are virus checked GHNHST does not accept any liability in respect of any virus which is not detected. Please note that any views or opinions presented in this email are those of the author and do not necessarily represent those of the organisation. Gloucestershire Hospitals NHS Trust http://www.gloshospitals.org.uk *************************************************************************cgh

22 years

1
0
0 0

Cromemco Information Needed

by Watzman＠neo.rr.com

I need as much information as possible - but at least the DIP switch settings - for a Cromemco 64KZ II memory board. Note, this is the 64KZ II, which is a different board from the Cromemco 64KZ (No "II"). If someone has a manual that they will loan me, I will scan it into a PDF file and return it. Thanks, Barry Watzman Watzman(a)neo.rr.com

22 years

2
1
0 0

Cool 4004 based calculator

by vcf＠siconic.com

Whilst thrifting for Atari joysticks today, I came across a barely interesting looking desk calculator and a hunch compelled me to take a chance on it. It is the Unicom 141P made by Unicom Systems, Inc. The label indicates, "Made in Japan". "Hmmm...Unicom...Unicom...Japan..." It sounded familiar. Of course I was thinking "Busicom", which is the name of the Japanese company that ordered the development of what became the 4004 for a new calculator they were designing. But I couldn't quite remember the name. At $5, I figured it was worth taking a chance. It was, as I mentioned, a barely interesting desktop calculator, so worst case it would serve as a good example of a 1970s desktop calculator (I was pretty certain it was circa 1970s). So I just opened it up and <surprise> it's got an Intel 4004 inside! Unfortunately, I'm not able to test it out because it requires a funky squarish three prong power cord. I'll have to look around and see if I can find one. There's only one (out of two) relevant Google results, that being this guy's website: http://www.devidts.com/be-calc/index.html With this calculator listed on his "Alphabetic catalog of Electronic Calculators" list. http://www.devidts.com/be-calc/catalog_U.asc.htm Might anyone (Rick Bensene?) have any info about this calculator? Rick's site lists the Busicom 141 in his wanted section: http://www.oldcalculatormuseum.com/wanted.html#WANTED-BUSICOM Is this in fact a re-badged Busicom? Or just coincidence? Rick's description indicates that the Busicom 141 is based on discrete diode/transistor logic with a Nixie tube display, whereas this one has a printing mechanism only. In searching for info, I came across another interesting website here: http://www.dotpoint.com/xnumber/cmhistory.htm ...with this interesting article: http://www.dotpoint.com/xnumber/e_walther.htm Oddly enough (perhaps), this represents the only 4004-based computing device in my archive. I'm relatively stoked ;) (And I haven't been thus about a new find in a long time...) -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

22 years

16
24
0 0

Free VAX 3100/30 in Atlanta

by ken＠seefried.com

I've got a VAX 3100/30 in probably-working-but-no-warrenty free for pickup in Atlanta, GA, USA. I'll throw in an external SCSI cable (which has an odd connection) and a VT220 (without, unfortunately, a MMJ cable). Need to make some room for higher priority rubbish. Ken

22 years

1
0
0 0

Macs: Billions and Billions sold

by sml49＠comcast.net

Chris wrote on 6/14: > >> This is a >> perfectly useful machine - has 192 mb RAM - I figure I'll install OS 10.3.4 >> on it and use it to write and to cruise the web. > > OS X will perform like poop with only 192 MB of ram. Doable, but you will > be MUCH MUCH happier going beyond 256 MB. > > The catch with the Rev A boards is, they don't "officially" support 256 > MB SO-DIMS. 128's are the largest they are supposed to handle. However, > as long as you get 8x64 chips (as opposed to the newer 8x32), they seem > to work fine. Also, watch out when you buy RAM, anything that goes in the > lower RAM slot must be Low Profile SO-DIMMs. Larger ones won't fit. And > also, some of the ram slots have metal retaining clips, those have been > known to touch the pins on the ram chips keeping them from being seen. If > you have one with metal clips, just tape off the edge of the ram chip to > keep the clips from shorting them. I'm sure you're right; I have another iMac (a 333 mhz one) with 256 running 10.3.4 and it's acceptably fast - not hot stuff but more than good enough for what I need - running iTunes at work as well as running whatever other odd apps I feel like that our corporate MIS won't allow to be installed on company hardware. I'll see how this one feels before I shell out for a RAM module. Whoever owned this machine before put the 128 mb module in the lower slot with the upper one still containing 64 mb. It's a Rev B board in this one - it's got a Rage Pro chip - not the board that belongs in this case (tangerine) but it will do. I have a complete set of Bondi plastics from another (dead) Rev B and even have the IR module. Theoretically I could recreate the machine this board belongs in, but what the heck - I like this color...and don't need the IR.

22 years

1
0
0 0

floppy low level format question

by dwight.elvey＠amd.com

> >> PS: The old Micromation floppy controller (CP/M 1.4 days) used NEITHER >> chip family, did their own formatin LS TTL, and practically no one can >> read them. > >I have a Micromation Doubler in my CASU Super C (S100 bus CP/M machine). >>From what I rmemeber the single-density (FM) format is standard, and can >read/write IBM3740 disks. The double density format, though, is probably >unique to this card. > >> You can probably do all this in a PC sound card these days! > >Not many sound cards will handle 500kHz signals, surely? > >-tony > Hi Tony I doubt they'd take it directly. Most have anti-aliasing filters that roll of before this. I think what the other fellow was refering to was to use the DSP on a sound card but not through the audio A/D part. Many sound cards used industry standard DSP chips the were reprogrammable with flash or on board RAM. The DSP chip I'm looking at on a modem card is a AD2116. It runs at about 16 mips and has very efficient indexed addressing with increment. This is more than fast enough to bit bang a floppy signal. To sample a digital signal asynchronously really takes a sample rate of at least 4X ( Shannon's says 2X but that is in theory with analog and brick wall filters ). Most serial chips use 16X. Since you need to detect edges, you need to be running at a sample rate of near 4 to 8 megherts to stay up with a signal from a floppy at 500khz data rate. Dwight

22 years

1
0
0 0

Free DEC 11/34 Boards

by pspan＠amerytel.net

Hi all, I have some boards out of a DEC 11/34 sytstem to give away. All you need to do is pay shipping. UPS ground charges. If no one is interested, then they will go to the scrap man on Wednesday. To be fair to everyone, I will send to the person closest to the number I have picked between 1 and 100. Here is the list of boards: 1 ea M9302 1 ea M9202 1 ea M7258 1 ea M7762 2 ea M7856 1 ea M7819 and 3 EMULEX boards 1 ea TU1110406, SU1210401 & TU1110401. These boards came out of a Telcom's billing system, but were not treated very gently when removed. Hope everyone is having a good day. Please email me back privately with your number guess by noon tuesday 6-15-04 CST. Thanks. Phil

22 years

4
3
0 0

COSMAC BASIC hex dump

by tomj＠wps.com

I just moved my lab (ugh) and all it's contents (kilopounds), and inevitably paused to look at junk along the way, and found my RCA COSMAC DEVELOPMENT KIT manual. It's got a hex listing (remember those) for a tiny BASIC for the 1802. If it's not already commonly available I'll (postal) mail a copy so's you can have all the true vintage experience of typing in hex dumps then finding the errors. I quite distinctly recall the abominable process of typing in ANIMALS or somesuch nonsense from the SWTP docs way back when. Ugh. Wouldn't wish it on anyone, and no, it did not build character.

22 years

2
5
0 0

Free: DECstation 5000/240

by bob＠applegate.org

This system is free for pickup in southern NJ (Medford/Mt Laurel area). I'll be in Boston next week, so if someone up there wants it, let me know and I can drag it along in the van. This is the collection... DECstation 5000/240 processor. Includes three 32 MB memory modules (room for 12 more). SZ-12 expansion box with one RZ55 SCSI drive (300 MB?) and one RZ56 (600 MB?). SZ-12 expansion box with two RZ56 (600 MB?) drives. SCSI cables to go from processor to drive enclosure, and from one drive encloser to another. You'll need to supply your own terminator. PMAD-A board. I can't remember what this does. Four MS02 8 MB memory boards for 5000/2xx series workstations. Possibly other miscellaneous DEC cables related to this system. If you have any questions, just ask. Bob

22 years

5
7
0 0

Apple LaserWriter questions

by sml49＠comcast.net

On June 9 Michael Sokolov wrote: > 1. Are all LaserWriters 100% pure PostScript printers, speaking nothing > but PS? I know the very original one was, but I'm not sure about whatever > happened later and whatever they make now. > > 2. Were there any LaserWriters made with duplex printing capability? If > so, what's the earliest duplex LaserWriter? > > 3. The original LaserWriter had a serial port. But given the assault on > serial ports coming from all directions, I don't expect the current ones > to have one, or do they? When was the last LaserWriter made with a serial > port? Was there ever a LaserWriter new enough to support duplex printing > but old enough to have a serial port? > > 4. Are LaserWriter serial ports standard EIA-232 DB25 or something Apple > proprietary? If the latter, what kind of adapter would I need to make? > 1. - The LaserWriter NTX supports Diablo 630 and also a limited version of a LaserJet emulator allowing use of Courier, Times, Helvetica in roman, bold, italic and bold italic; communication needs to be via the printer's RS 232 interface (DB-25) at 9600 baud to use the emulator. My 1988 Apple LaserWriter Reference text suggests checking the 1986 LaserJet reference for more info on this, though there's a fair bit on the subject in Apple's own book. 4. - The original LaserWriter had a 9-pin RS422. Later ones came with a mini-DIN 8 RS422 plus a DB25 RS 232c. These machines speak AppleTalk over their mini-DIN 8 ports when that function is selected by DIP switch positioning - in which case the DB25 serial port is disabled. In a later post someone suggested avoiding the CX-engined original LW in favor of the LWII with the SX engine, mostly b/o problems with obtaining toner - probably a wise suggestion. Plus the SX is indestructible - mine's been in service since 1989. Total cost of repairs over 15 years of light to moderate use: $26 for a new ozone filter. I'll be glad to scan any material from the LW reference anyone may want/need. Seth Lewin

22 years

6
5
0 0

Vax help - lost passwords

by kenziem＠sympatico.ca

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Over the weekend with a lot of help my VAXstation II/GPX was brought to life. We had to swap memory and processor cards with a spare I had in the garage. It now comes up with the Ultrix login screen This morning I fired up my the VAX in the BA23 case and it too came to life running VMS 5.4. with a nice login prompt. The question is how do I get past the login prompts to reset the passwords. - -- Collector of vintage computers http://www.ncf.ca/~ba600 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) iD8DBQFAzfGELPrIaE/xBZARApVZAKC2sreBbEY/MMuIJuZXtpMQSFbAxwCgwad8 uP1qku5OeToTDpM8nU7ALi8= =z4Ts -----END PGP SIGNATURE-----

22 years

2
1
0 0

floppy low level format question

by julesrichardsonuk＠yahoo.co.uk

Hmm, my pondering about reading raw data from floppies got me thinking. I have some data on low level floppy format, which gives the following information: Each track has an index gap, followed by a gap 1, followed by a number of sectors, followed by a termination gap. Each sector is made up of an ID field, seperator gap, data field, and then a trailing gap on all except the last sector on a track. This is given as the same for both MFM and FM recording. The information I have gives the makeup of each of the gap types in terms of bit patterns, counts, what clock transitions are missing for MFM formats etc. Question is, is this a standard? I mean, for any disk using MFM or FM recording are these bit patterns going to be the same? Or is it dependant on the controller chip being used? cheers Jules

22 years

4
3
0 0

What's the weirdest thing that you've ever found inside a computer?

by rigdonj＠cfl.rr.com

I went scrounging a few days ago and opened up a junction box and found a set of wire leads with the mini-grabbers and a plastic wire frame from a HP logic analyzer that someone had left inside. Wahoo! These always come in handy! I've previously found screwdrivers, knives, various plugs, connectors and gender menders. But I got to wondering what is the strangest thing that anyone has ever found inside a computer or similar piece of electronics gear. Joe

22 years

37
66
0 0

Macs: Billions and Billions sold.

by cb＠mythtech.net

>This is a >perfectly useful machine - has 192 mb RAM - I figure I'll install OS 10.3.4 >on it and use it to write and to cruise the web. OS X will perform like poop with only 192 MB of ram. Doable, but you will be MUCH MUCH happier going beyond 256 MB. The catch with the Rev A boards is, they don't "officially" support 256 MB SO-DIMS. 128's are the largest they are supposed to handle. However, as long as you get 8x64 chips (as opposed to the newer 8x32), they seem to work fine. Also, watch out when you buy RAM, anything that goes in the lower RAM slot must be Low Profile SO-DIMMs. Larger ones won't fit. And also, some of the ram slots have metal retaining clips, those have been known to touch the pins on the ram chips keeping them from being seen. If you have one with metal clips, just tape off the edge of the ram chip to keep the clips from shorting them. -chris <http://www.mythtech.net>

22 years

1
0
0 0

for sale etiquette?

by d_cymbal＠hotmail.com

What is the view of folks posting items for sale on the list? I've posted forsale items to the list before, but recently I've been putting more free items and some auctions up on VCM so I am hesitant to re-post them here and turn this into a SPAM fest. Then again, I'd like to get as wide an audience as possible. Do most readers of the list also frequent VCM (my guess is a definite maybe)? What if VCM posted a summary of all new items received for sale/auction at the end of each day? That would only add 1 msg to the list that people could quickly kill if they weren't interested but would insure available stuff was getting as wide an audience as possible for those people that don't frequent VCM regularly. Just a thought. _________________________________________________________________ Learn to simplify your finances and your life in Streamline Your Life from MSN Money. http://special.msn.com/money/0405streamline.armx

22 years

32
82
0 0

Expando-RAM Information Needed

by Watzman＠neo.rr.com

I need a manual for an "Expando-RAM" 64k S-100 memory card (sold by S.D. Sales). There were several variants of this card, the one that I have is Revision E, it has two DIP switches at the top, the one at "U1" is 4 position, the one at U2 is 8 position (many of these have a smaller DIP switch at U2). Also, there are various jumpers all over the board, a dozen or more. Thanks for any help that you can provide, Barry Watzman Watzman(a)neo.rr.com

22 years

1
0
0 0

OSI

by earlj＠qix.net

Hello Dave, Did you ever find a home for your OSI machine? I have a lot of OSI literature to give away. Earl Morris

22 years

2
1
0 0

Datapoint 2200 going cheap on Ebay

by wmaddox＠pacbell.net

This machine figures prominently in the history of the 8008 microprocessor, though it in fact uses a TTL implementation of that architecture. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5100920655 --Bill

22 years

1
0
0 0

Qbus hard disk controller

by pete＠dunnington.u-net.com

On Jun 13, 23:04, der Mouse wrote: >On Jun 13, 21:27, Jerome H. Fine wrote: > > Here is the MSCP boot code from the System Release Notes of V05.00 > > page 4-9 in Chapter 4: [...] > > > If really interested, we can provide the equivalent instructions in > > MACRO-11. > > 076000: clr r0 [005000] [ ... ] > 076152: mov @100000(r2),r4 [017204 100000] Thanks for that, both. I actually have the reconstruction of the MACRO code: ;This is the MSCP bootstrap as listed in the RT-11 5.6 INS manual ... ; along with its disassembly (by hand!). Additional comments and ; attempts to make "nicer" assembly by ; Bob Schor bschor(a)vms.cis.pitt.edu (412) 647-2116 (w) ; ;Missing word (at 76102) and most of the explanation supplied by ; Jim Crapuchettes jimc(a)netcom.com 408-732-0569 ; .asect . = 42 .word 1000 ;-; Set stack pointer for RT-11 - don't "toggle" in . = 76000 ; The contents of R0 must be the MSCP unit number. Although it is set to 0 ; below, it could be manually set to some other value and then execution ; started at 76002. start: clr r0 ;76000/5000 ;; Preset register to 0 (unit) mov #172150, r1 ;76002/12701 ;; Point to IP register ;76004/172150 1$: mov #itabl, r4 ;76006/12704 ;; Point to init/cmd params ;76010/76156 mov #4000, r5 ;76012/12705 ;; Set init step to 1 ;76014/4000 ; Do 4-step controller initialization. Begin by writing any value to IP to ; reset the controller; all the rest of initialization is done through SA. mov r1, r2 ;76016/10102 ;; Copy IP address, write to mov r0, (r2)+ ;76020/10022 ;; IP to init & bump to SA 2$: tst (r2) ;76022/5712 ;; Test for error bit in SA bmi 1$ ;76024/100770 ;; Error = start init again bit (r2), r5 ;76026/31205 ;; Test step bit in SA br 3$ ;76030/401 ;; ????, appears to skip next bic (r1)+, (r5)+ ;76032/42125 ;; ????, seems to be skipped 3$: beq 2$ ;76034/1772 ;; Wait for next step ready mov -(r4),(r2) ;76036/14412 ;; Next init param to SA asl r5 ;76040/6305 ;; Move to next init step bpl 2$ ;76042/100367 ;; Loop thru 4 steps ; Bring unit on-line, read bootstrap (block 0) from the disk and start it up. 4$: tstb -(r4) ;76044/105744 ;; Point to next cmd byte bne 5$ ;76046/1002 ;; Loop thru commands mov pc, r4 ;76050/10704 ;; Point r4 to "clr pc" and clr pc ;76052/5007 ;; go start at location 0 5$: clr r2 ;76054/5002 ;; Init for clearing memory 6$: clr (r2)+ ;76056/5022 ;; Clear memory from loc 0 cmp r2, #17204 ;76060/20227 ;; thru loc 17202 ;76062/17204 blo 6$ ;76064/103774 ;; Loop until done incb @#17101 ;76066/105237 ;; Packet length = 400 bytes ;76070/17101 mov r0, @#17110 ;76072/10037 ;; Set unit number = 0 ;76074/17110 movb (r4), @#17114 ;76076/111437 ;; Move command to cmd pkt ;76100/17114 movb -(r4), @#17121 ;76102/114437 ;; Set parameter from table ;76104/17121 mov #17004, (r2)+ ;76106/12722 ;; Set response packet de- ;76110/17004 ;; scriptor: low 16 address mov r5, (r2)+ ;76112/10522 ;; bits & PortOwn bit mov #17104, (r2)+ ;76114/12722 ;; Set command packet de- ;76116/17104 ;; scriptor: low 16 address mov r5, (r2) ;76120/10512 ;; bits & PortOwn bit cmp -(r2),-(r2) ;76122/24242 ;; Point back to resp desc tst (r1) ;76124/5711 ;; Poll controller to start 7$: tst (r2) ;76126/5712 ;; Wait for resp desc PO bit bmi 7$ ;76130/100776 ;; => 0 == response received tst @#17016 ;76132/5737 ;; Status byte = success (0)? ;76134/17016 beq 4$ ;76136/1742 ;; Yes, go to next command stop: halt ;76140/0 ;; No, stop here... ; NOTE: This table MUST be - immediately preceeded by a zero byte (the HALT ; instruction) because it is the "end-of-table" marker; and immediately ; precede the Initialization Step Parameter table since a single register ; points first to the IStep Params (1 word each) and then to the commands ; (1 byte for the command, 1 byte for the parameter), passing through them ; in reverse. .byte 2 ;; Set byte count to 1000 for OP.RD .byte 41 ;; OP.RD = ReaD .byte 0 ;; 0 parameter for OP.ONL .byte 11 ;; OP.ONL = ON Line ;; .word 20402 ;76142/20402 ;; .word 4400 ;76144/4400 .word 1 ;76146/1 ;; IS4: GO bit .word 0 ;76150/0 ;; IS3: Ring base high address .word 17204 ;76152/17204 ;; IS2: Ring base low address .word 100000 ;76154/100000 ;; IS1: bits- ;; [15] = 1, [14] (WR) = 0, [13:11] (cmd ring ;; size) = 0, [10:8] (resp ring size) = 0, [7] ;; (IE) = 0, [6:0] (int vect/4) = 0 :: command ;; and response rings = 1 element, no inter- ;; rupts and no interrupt vector. itabl =: . ;need pointer to end of table ;76000g to start ODT .end stop ;For RT-11 only, don't "toggle" in IIRC, the wierdness at 076026 is because the original RT11 code was broken. Around 5.3 it got patched to work with the RQDX3 (which sometimes sets more than one bit in the SA). -- Pete Peter Turnbull Network Manager University of York

22 years

1
0
0 0

[SPAM] - Re: Qbus hard disk controller - Found word(s) error XXX in the Text body.

by pete＠dunnington.u-net.com

On Jun 10, 20:38, SHAUN RIPLEY wrote: > > --- "Jerome H. Fine" <jhfinexgs2(a)compsys.to> wrote: > > ... > > > > Note that none of the RQDXn have any BOOT ROMS, > > which > > is standard for a DEC controller as opposed to 3rd > > party controllers > > which usually have BOOT ROMS. And even the RQDX3 > > I have a question about BOOT ROMS. Does a MSCP > compatible disk controller need a boot rom to boot > from a HD connected to it? I am ingorant about this > issue. Yes, it does. For Q-Bus machines, the processor card (if it's a quad-height, ie KDF11B or KDJ11B) should have boot ROMs that can handle MSCP, though the older ones might not behave well with bigger/later drives. The MXV11B-2 boot ROMs can do it, and they also fit the MRV11D. DEC boot ROMs may not always work with third-party MSCP controllers, but such 3P controllers often have their own boot ROMs. You could enter an MSCP boot via ODT, but it's VERY long! -- Pete Peter Turnbull Network Manager University of York

22 years

3
2
0 0

OSI

by SUPRDAVE＠aol.com

In a message dated 6/11/2004 11:33:53 AM Eastern Daylight Time, earlj(a)qix.net writes: Did you ever find a home for your OSI machine? I have a lot of OSI literature to give away. I loaned one out to a mutual collector. what kind of documents do you have? Any OSI stuff sounds interesting. -- I am not willing to give up my liberties for the appearance of 'security'

22 years

1
0
0 0

Macs: Billions and Billions sold.

by sml49＠comcast.net

On 6/10 Chris wrote: > >> None of the goodwill/salvation army stores near my home in NE Massachusetts >> will even accept computers of any kind for donations. That really annoys >> me, both from a donatig and a collecting perspective. > > The one near me had the same policy. They would refuse them, and if they > were left when the place was closed, they would chuck the CPU in the > dumpster and sell whatever parts and software was left. I happened to be cruising past the recycling area at my town disposal area Saturday and scored a tangerine-colored iMac someone had put out, keyboard, mouse and all. Apparently it had been slightly bastardized at some point - it has a 233 mhz G3 Rev A motherboard swapped in instead of the 266 rev B it should have, also no hard drive but otherwise fine; booted from an OS 9 CD without a hitch. I wondered when I'd start to see machines of this vintage (early 1999) being chucked - now I have my answer. I'll leave it at a place where I do a little consulting once I install a drive and it'll save me dragging my heavy old 1997-vintage PowerBook back and forth. This is a perfectly useful machine - has 192 mb RAM - I figure I'll install OS 10.3.4 on it and use it to write and to cruise the web. Hardly a scratch on the case, too. A bargain even after buying it an 80 gig drive and a 3-button mouse.

22 years

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Wanted: M9312 ROMs

by squidster＠techie.com

Hello list, Have been fooling around with my 11/04 and all is great, but problem is I have no 70s peripherals. I only have 80s stuff; i.e. MSCP/RA/DU disks and tapes. So I'll need boot ROMs which supports RA and DU disks. Because my 11/04 used to be an embedded CNC drill controller, in the place of the regular CPU diagnostic is has a weird proprietary program which tries to initialize some long-gone/dead equipment which used to be connected to the PDP. In summary, I'm willing to pay a fair/reasonable price for the following M9312 ROMs (unless some one has spares, then I wouldn't mind them free of course :-)): 1. Console Emulator and Diagnostic ROM (P/N 23-248F1) For use on 11/04, 11/05, 11/34, 11/35, 11/40, 11/45, 11/50, 11/55 systems 2. UDA50 DU Boot ROM (P/N 23-767A9) For booting from RAnn/RDnn MSCP disks 3. TK50/TU81 MU Boot ROM (P/N 23-E39A9) For booting from TK/TU TMSCP tapes 4. RX02 DY Boot ROM (P/N 23-811A9) For booting from a RX02 8" floppy (don't have one now, but trying..) 5. RL01/02 RL Boot ROM (P/N 23-751A9) For booting from RL01/RL02 disk cartridge systems (also don't have one now, but trying...) Thanks. /wai-sun -- ___________________________________________________________ Sign-up for Ads Free at Mail.com http://promo.mail.com/adsfreejump.htm

22 years

11
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VTServer for Windows

by wacarder＠usit.net

Does anyone on the list have a working copy of VTServer that works properly on the Windows 2000 platform? Today I was going to attempt to move an RL02 disk image from my PC to a real RL02 on a PDP-11/34, but the VTServer version that I have continuously echoes the last character that was sent from the PDP-11 to the console (in RT11, it repeatedly displays the '.', over and over. Thanks, Ashley

22 years

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Parallel drive (was: USB 5.25" floppy drive - do it

by dwight.elvey＠amd.com

Hi I doubt one can fetch data with most PC's from the parallel port fast enough to keep from being overrun, even on a byte wise basis. That is why I've suggest the DSP. May of these can run fast enough to do it on a BIT wise basis and require no external hardware, other than buffers. Dwight >From: "Steven Canning" <cannings(a)earthlink.net> > >I've been looking into this for some time. The parallel port lacks the >"through-put" to take the data on and off the floppy as serial data (as it >comes off the drive "raw") but if you added some hardware (like a Western >Digital FD controller) it will separate the data and convert it to >"parallel" data which the parallel port can support. The inverse is also >true (parallel data back to serial to fed the drive). The FDC can handle the >Single density issue. Processing power of the computer is not an issue >unless you have a painfully slow machine. I wish I had more time to work on >this project. Anyone have the Kilobaud article were someone connected a FDD >to a Heathkit ET-3400 ? > >Best regards, Steven > >----- Original Message ----- >From: "Fred Cisin" <cisin(a)xenosoft.com> >To: "General Discussion: On-Topic and Off-Topic Posts" ><cctalk(a)classiccmp.org> >Sent: Thursday, June 10, 2004 2:55 PM >Subject: Parallel drive (was: USB 5.25" floppy drive - do it > > >> On Thu, 10 Jun 2004, Jules Richardson wrote: >> > Not sure if such as a PC parallel port is fast enough to cope with the >> > data rate of a floppy drive and leave enough time for the CPU to do the >> > processing though... but that'd be nice; little more than a cable and a >> > bit of glue logic hooked up to a parallel port that could be quickly >> > swapped between machines. >> >> MicroSolutions (DeKalb IL) in their "BackPack" line, made parallel port >> floppy drives. I have a 2.8M 3.5" from them, but they also made a lot of >> other models. >> > > >

22 years

2
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Apple II floppys

by ron.hudson＠sbcglobal.net

Are there still places to get 5.25" diskettes for Apple II? How about the 3.5" diskettes? (apple IIc+)

22 years

9
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MIT Dumbkopf 1 computer

by frustum＠pacbell.net

Some time back on the vintage computer marketplace (http://marketplace.vintage.org/), somebody listed a "dumpkopf 1" computer, but only the most vague information was given about it. I think there was some speculation here that it was maybe a hoax, and that no information could be found about it on the internet. I accidentally stumbled upon the machine at this web site; I suspect that this guy was the lister in that marketplace ad: http://community-2.webtv.net/ARCHAICAUDIO/WESTERNELECTRIC/page15.html It looks to be very interesting, perhaps significant, but certainly inoperable. The web page has a number of very interesting pictures of the computer, and says that the tubes have a 1954 date stamp on them. There are some large patch panels on the machine, so perhaps it wasn't a general purpose programmable computer (in fact, the name implies the machine isn't all that smart!)

22 years

8
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Benson 1645 plotter experience?

by julesrichardsonuk＠yahoo.co.uk

Anyone ever used a Benson 1645-R plotter? We dragged one out of store at the museum the other day. It does its test plot fine, and we look to have got a terminal talking to it as far as handshaking and sending characters via the SA interface. It's not responding to HPGL commands at all though - in fact it's not responding to anything sent down the serial line, other than the handshaking being ok. We're using the 'SA' interface which has one RS232 port and one unknown 9 pin port. We also have an 'SW' interface module, which has two ports on it - one male and one female. According to the (nearly useless) documentation we have, one is for a terminal and one for a host computer - but it doesn't explain the point of that (i.e. whether we should be trying to drive the thing from the terminal port or the host port). Nor does it explain what the difference between 'modem' and 'hardware' connections are (surely the plotter knows nothing of what's actually connected to its interfaces and doesn't care), what the difference is between local and remote mode (this is different between manual and auto mode), what the difference is between normal and emulate mode (emulate what? Selection of Benson or one of various HP plotter types is a seperate menu option, so I don't think it's to do with Benson/HPGL protocol emulation) Nor do the docs say what the difference is between the flow control options on the SW interface (partly why we gave up and started using the SA one) - there's a choice of CTS1, CTS2, then XON 1-4. How those map to the real world we don't know. Grumble grumble. Anyone know how to kick the thing into HPGL emulation mode so we can actually talk to it? cheers Jules

22 years

2
1
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Differing Atari VCS case designs

by witchy＠binarydinosaurs.co.uk

Folks, Got a call from a friend today asking me if I'd like her VCS plus games so I'm now in possession of yet another machine but with 10 or so excellent condition boxed games, some of which I've not heard of before. However it's the machine itself that's interesting as it has a low serial (~70,000) and the case itself looks like what I call the 'US' case - extra thick edges and sculpting on the back where the joysticks etc plug in, not the plain flat back of the models I'm familiar with. I'm guessing it's one of the first UK (ie PAL signal) models since there's no CH2-3 selector switch visible and it has a TV/Game switchbox, but can anyone shed light on why the case was that thick in the first place? Shielding for US emissions regulations perhaps? Cheers! -- Adrian/Witchy Owner & Webmaster, Binary Dinosaurs www.binarydinosaurs.co.uk - possibly the UK's biggest online computer museum www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o(

22 years

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Request for information on HP 9826

by rigdonj＠cfl.rr.com

I got the message below from someone seeking more information about the HP 9826. I'm sure some of you know more about this than I do. He's particularly looking for information about the developement of the 9826. Joe Hi Joe, My name is Tom and my brother, Mark Allen, was one of the developers of the HP 9826. He helped implement RMB for HP and said he invented the knob that was used on that series. My brother passed away a few years ago and I inherited his production prototype of the 9826 which Mark won in a team raffle. I am preparing to donate the 9826 to (a computer museum) and I am looking for more information about it to include with the donation. I found your site in Google (http://www.classiccmp.org/hp/hp9-200.htm) and am surprised to find such detailed information about these old machines. I found your email address at http://www.geocities.com/SiliconValley/Horizon/9107/collectors.htm. Do you have any pointers to more information about the product and the team that developed it? From your descriptions it sounds like you may have worked at HP and may even have known my brother, Mark. Thank you for any information. Warm Regards, Tom

22 years

1
0
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VAX Vector 6000-520

by ggs＠shiresoft.com

Hi, This was on the last list of items I wanted to get rid of but no one seemed to want it. Here's your last chance otherwise it gets scrapped (I don't really want to but I need it out of my place). Please don't ask for parts off of it. That doesn't get rid of it and only makes it more difficult to get rid of. If you want parts, take the whole thing, then I don't care what you do with it. Thanks. -- TTFN - Guy

22 years

3
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How do you exit an Basic environment.

by awt＠io.com

> How do you exit an BASIC environment? Type BYE

22 years

2
1
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Osborne Vixen

by David.Schlinkert＠veritas.com

Mike, I don't have my Osborne 1 any more, but have a Vixen "new" in the original shipping carton. The carton has been opened to check for mice. Are you still in the market? David

22 years

3
2
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Interesting hamfest finds

by rigdonj＠cfl.rr.com

I went to a small hamfest today and found an interesting item. It's an early Simpson 260 meter with no series number and a BROWN bakelite case. I've used these meters for 40+ years and never even heard of one of these before! Other goodies include a Tektronix 465 scope and a Wavetek Function/Noise generator (cheap!). Also the seller FINALLY brought me the National Semiconductor Pacer computer that I bought several months ago. It's a large box with 2 four digit displays and a calculator-like keyboard and appears to be in perfect condition. Pictures to follow in a few days. Also I went scrounging yesterday and found a big heap of cards for the HP-1000 including three DAS cards (very big $$$ :-) Also found a Multibus chassis with power supply made by AMD. It a Z8002 CPU on one card and two other wire wrap cards in it. I haven't had a chance to look at it closer. Joe

22 years

1
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Computer museums

by KParker＠workcover.com

Well I probably run a high risk of getting flamed a bit here but the wife and I are planning a trip - figured we've worked long enough and deserve it. Planned route is ex Adelaide (South Australia) to Sydney, then Los Angeles (to catch up with the daughter), then New York, onto London, then maybe Spain, then Zurich, over to Berlin, then Tokyo, down to Singapore and then home. As we are in the planning phase Id' interested if anyone knows if there are any computer museums (or similar things of interest) in these locations. TIA!!! +++++++++++++++++++ Kevin Parker Web Services Manager WorkCover Corporation p: 08 8233 2548 e: webmaster(a)workcover.com w: www.workcover.com +++++++++++++++++++ ************************************************************************ This e-mail is intended for the use of the addressee only. It may contain information that is protected by legislated confidentiality and/or is legally privileged. If you are not the intended recipient you are prohibited from disseminating, distributing or copying this e-mail. Any opinion expressed in this e-mail may not necessarily be that of the WorkCover Corporation of South Australia. Although precautions have been taken, the sender cannot warrant that this e-mail or any files transmitted with it are free of viruses or any other defect. If you have received this e-mail in error, please notify the sender immediately by return e-mail and destroy the original e-mail and any copies. ************************************************************************

22 years

13
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Interesting part

by Lee.Davison＠merlincommunications.com

> So what I should have asked (what I meant to ask) is does anyone > have any data on this part to determine how long the delay is? Speed of sound in mercury is 1450m/s, how long is the path of the delay line? Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

22 years

1
0
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TSZ07, "5F MOTOR FAULT"

by drb＠msu.edu

Dear all, I just obtained a TSZ07, and of course promptly tried to load a tape. The drive blows for a while, rotating the front hub, routinely seems to get the tape about halfway through the serpentine path, then emits an error message "5F MOTOR FAULT". The rear hub seems to be moving at least some, the front hub works the way I remember these units working. (Ok, _my_ memories are of 1600bpi Cipher-badged units from my Prime days.) Any suggestions, or am I screwed? Thanks, Dennis Boone

22 years

1
0
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Tektronix 2225 scope

by witchy＠binarydinosaurs.co.uk

Folks, I'm on holiday this week and I've borrowed the spare Tek 2225 scope to fiddle with. Can anyone give me a head-start on this beastie so I can go over my dead TRS80 M1 and see what's actually working? I'm a total scope novice so I'm searching for online tutorials on general scope use but if anyone's got experience of the 2225 that'd be great :) Cheers! -- Adrian/Witchy Owner & Webmaster, Binary Dinosaurs www.binarydinosaurs.co.uk - possibly the UK's biggest online computer museum www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o(

22 years

2
1
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Kodak Displaymaker "video graphics system"

by pat＠computer-refuge.org

Has anyone heard of this before? It's an all-in-one unit about 10"x11" footprint and 2.5" high, with a single 5.25" floppy drive out the front of it, and a chicklet keyboard on top, covering the front half of the unit. On the back is a "video/audio in", RS-232, RGB analog, RGB-TTL, Composite video, and modulated video connector, along with an IEC power connector and power switch. I got this with some other toys a couple weeks ago, and it seems to be missing the software that goes with it (it demands to boot from the floppy drive). I opened it up, and inside it looks vaugely PC-ish, with an 8088, and a 2x31 pin header that might be a connector for an ISA slot if used with the appropritate header->card edge adaptor. Anyways, if anyone knows anything about this, or can lend me a copy of the software, I'd be very appreciative. Pat -- Purdue University ITAP/RCS --- http://www.itap.purdue.edu/rcs/ The Computer Refuge --- http://computer-refuge.org

22 years

1
0
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Sun Sparcserver 490

by ggs＠shiresoft.com

Hi, Someone had agreed to pick up the Sun Sparcserver 490 (Sunnyvale, CA). However, I have not heard from him in several weeks. So it's being offered again. It is a Sparcserver 490, in a very nice Sun rack. It weighs about 250-300lbs. I also have a lot of Sun documentation that goes with it. It's free for the taking. Just *take* it! Thanks. -- TTFN - Guy

22 years

1
0
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Amiga Golden Gate II

by Lee.Davison＠merlincommunications.com

Sorting through my stash in preparation for moving I've uncovered one of these cards, unfortunately it's had all its socketed chips robbed at some time (not by me) which are all GALs. Anyone got the fuse maps for these? I really don't want to have to work out the logic by hand. Cheers, Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

22 years

3
3
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Free in Socal: NCR systems

by elmo＠mminternet.com

I have two matching NCR 3230 boxes available for pickup. They are 486/33's with three ISA slots, floppy, and one has a 170m drive. 16 and 32 megs memory. I believe they would support a 486/66 chip. They've very small POS-oriented boxes that look very slick. They were constructed for use as routers. I also three non-vintage PCs: A Dell P120 Minitower, fully equipped, reliable, speedy, a P3 dual-processor tower (defective cpu), and a clone Celeron 300 / Slot 1 system, status unknown. These are optionally available to whomever picks up the NCR units, otherwise they're going to recycling center.

22 years

2
1
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Stupid Amiga Tricks

by Arno_1983＠gmx.de

Message: 2 Date: Thu, 10 Jun 2004 18:15:48 -0400 >>>>> "paul" == Paul Koning <pkoning(a)equallogic.com> writes: paul>>>>>> "Fred" == Fred Cisin <cisin(a)xenosoft.com> writes: paul> paul> Fred> So Commodore thought they could be successful at defying paul> Fred> convention by giving the later model a lower model number paul> paul> Fred> The Ford model A came after the model T paul> paul> And the 11/730 came after the 11/750 which came after the 11/780. paul> The 11/05 came after the 11/20, and the 11/04 came later than that... paul> paul> paul Not to forget the Sun SPARCstation 5, which came after the 10 and had the new style (gray/violet opposed to gray only) housing... -- Arno Kletzander Stud. Hilfskraft Informatik Sammlung Erlangen www.iser.uni-erlangen.de +++ Jetzt WLAN-Router für alle DSL-Einsteiger und Wechsler +++ GMX DSL-Powertarife zudem 3 Monate gratis* http://www.gmx.net/dsl

22 years

5
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