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

by xds_sigma7＠hotmail.com

Heh, I second the kicking the guys' ass idea, especially if I could end up with the Varian.. I'd love a 2nd one, especially since his has a rack and everything! But just a reminder, don't go for the "bid tons o' cash on it" idea, since ebay bids are considered legally binding contracts... Will J _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com

24 years, 4 months

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Maybe OT: Network ethics

by mythtech＠Mac.com

>> For some ultra-secure type site, wiring the other two pairs to detect a >> connection, and or to deliver 48VDC (from a spare telephone switch >> supply) would deter all but the most determined. > >Or even have it so that unused RJ45 wall jacks are wired to a nearby >electric outlet. "Oh, you plugged into one of our proprietary power >ports...". I like this for the "teach them a lesson" factor... but if you are going to go thru the trouble of using custom patch cables... why not just use custom port connectors as well? Maybe something like the old 4 prong phone connectors (don't know the name... those 4 straight pin blocks old telco supplied phones used to have), or even something like a DIN connector. I don't know the electrical side of things though... so I don't know how bad this would screw up the cat rating for high speed connections. -chris <http://www.mythtech.net>

24 years, 4 months

8
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Mac IIsi vs. IIci

by doc＠mdrconsult.com

Let the Holy Wars commence! Seriously, I have a chance to trade some PC stuff for either a IIsi or a IIci. Both are barebones - no harddrives, adapters or RAM. Looking at LowEndMac and Apple support, I'm leaning toward the IIci, but I thought for once I'd take advice *before* the aquisition. It'll probably run either A/UX or Linux/m68k. My main concern is RAM. They'll both take <100ns 30-pin non-parity, right? Any other gotchas? Yes, I have a Nubus video card. Doc

24 years, 4 months

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OT-My new toy. I can't wait!

by jrice＠texoma.net

I know this will be OT for a couple more years but I can't stand it. I'm sitting on the edge of my seat in anticipation of the arrival of my latest addition. I scored a dual 133 BeBox from ebay last week. One more line item marked off the must have list. I think it'll look cool sitting next to the Dimension cubes. I've got a 19" monitor all warmed up and waiting for it's arrival! BTW, does anyone know if a keyboard shipped with a BeBox, or whether it was a used supplied item? If it was shipped with one, does anyone know what mfg or model? I'm going to post this on usenet and on some BeBox forums, but thought one of you guys might know. James

24 years, 4 months

2
2
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eBay: WOW L@@K R4R3 (no, really)

by mcguire＠neurotica.com

On February 3, Doc wrote: > > > You guys do realise that there's probably no recourse unless this > > > dunce cashes Mike's check, right? eBay *might* make him pull this > > > auction, but there's nothing to keep him from returning the deposit & > > > relisting in 2 weeks. > > > > Sure there is. I could fly up there and kick his ass. > > Dave, > You keep making me scare my cat. She hates you now. :) -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

24 years, 4 months

1
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Mac IIsi vs. IIci

by mythtech＠Mac.com

> Seriously, I have a chance to trade some PC stuff for either a IIsi or >a IIci. Both are barebones - no harddrives, adapters or RAM. Looking >at LowEndMac and Apple support, I'm leaning toward the IIci, but I >thought for once I'd take advice *before* the aquisition. It'll >probably run either A/UX or Linux/m68k. > My main concern is RAM. They'll both take <100ns 30-pin non-parity, >right? Any other gotchas? Yes, I have a Nubus video card. Since you mention your main concern to be ram, the IIci is the better machine. It tops out at 128mb (8 x 16mb), vs the IIsi max of 17mb (4 x 4mb + 1mb on mobo), so if RAM really matters to you... the decision is clear. But for a quick run down: The IIci is going to be the better unit. It has 8 ram slots, and handles 16mb chips (IIsi has 4 slots, 4mb chip max). It also has 3 NuBus slots, along with built in video (so 3 usable slots... although you will probably fill one with an ethernet card). And it has 2 ADB ports (although for the most part, you will only ever need one, since the mouse will daisychain thru the keyboard, and you can always get an ADB splitter if you need an extra with the IIsi). Oh, and the IIci is 5Mhz faster (25 vs 20 for the IIsi), and all IIci units have the FPU (IIsi it was optional, and most did NOT have it, but many right angle adaptors had it installed). The IIsi is only better in my book in two repsects. 1: it is slightly smaller, 2: the single slot is a combo NuBus/PDS slot, so you have an option of what to add (but in my experience, most cards that were PDS were also available as NuBus... but NOT the other way around, there are a number of video boards that were NuBus only). Oh yeah... the IIsi has a mic port, the IIci does not. So if you don't need the PDS slot, and don't care about shaving a few inches off the height, and don't need a microphone... the IIci is the far better machine. -chris <http://www.mythtech.net>

24 years, 4 months

3
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eBay: WOW L@@K R4R3 (no, really)

by mcguire＠neurotica.com

On February 3, Doc wrote: > > I think this is a case of someone not knowing what he had on his hands and > > then realizing he could make quite a bit of money, and acted completely > > unethically about it (I have nothing to complain about, but Mike surely > > does). > > You guys do realise that there's probably no recourse unless this > dunce cashes Mike's check, right? eBay *might* make him pull this > auction, but there's nothing to keep him from returning the deposit & > relisting in 2 weeks. Sure there is. I could fly up there and kick his ass. -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

24 years, 4 months

2
1
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BYTE magazine

by mcguire＠neurotica.com

On February 3, Gareth Knight wrote: > > Hi folks. Some time ago, I found an online archive of scans of the > > front covers of every issue of BYTE magazine. > > Google has come up with loads of Byte covers. I know it isn't as organized > as a specific site but it may be helpful. > http://images.google.com/images?hl=en&q=%2Bbyte+%2Bmagazine Interesting; I've never played with google's image search stuff...I'm gonna page through that a bit and see if anything turns up. Thanks! -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

24 years, 4 months

1
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BYTE magazine

by mcguire＠neurotica.com

On February 3, Ben Franchuk wrote: > > Hi folks. Some time ago, I found an online archive of scans of the > > front covers of every issue of BYTE magazine. Now I'd very much like > > to look at that again, but I can't seem to find it...searching BYTE's > > web site, and a little googling, have turned up nothing. Does anyone > > know where that might be found? > > I want the whole magazine scanned.:( > All I have seen on BYTE is the artist of the BYTE covers selling prints > of the covers for several $100's each. Yeah. I'm trying to find a copy of the very first issue of BYTE that I got my hands on...I think it was sometime in 1980. I don't remember any of the articles or what was on the cover, but if I were to see a scan of the cover or read mention of the cover stories it'd probably jog my memory. -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

24 years, 4 months

1
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DOS software for the cost of shipping!

by fernande＠internet1.net

Hello People, I put these two PFS software packages on Ebay, but they didn't go. So I'll offer them here. They're in excellent condition. Here is the Ebay url, if you'd like to read more. I didn't put a picture up, sorry. I'll give them away for the cost of shipping. http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1319165885&r=0&t=0&s… Please respond off list. Chad Fernandez Michigan, USA

24 years, 4 months

1
0
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Sony OA-D32W Floppy

by glenslick＠hotmail.com

At what RPM does a normal PC 3.5" run? If they run at a different RPM I suppose that would make the drives incompatable as a replacement. >From: "Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> > >If it's the one that I think that it is (flaky memory of stuff from long >ago), then it runs at 600 RPM. Until closing my office a few years ago, >I had a service manual for them. I can look; with about a 1 in 10 chance >of finding it. > _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com

24 years, 4 months

3
2
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Sony OA-D32W Floppy

by glenslick＠hotmail.com

Does anyone have any info on Sony OA-D32W 3.5" floppies? In particular the one I have is a model OA-D32W-11 with a broken head. This was in an HP Integral PC. I don't suppose there is much hope of finding a working replacement. It has a 26-pin connector. Any chance a standard 34-pin PC 3.5" floppy could be wired up to the 26-pin interface and made to work as a replacement? _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com

24 years, 4 months

4
3
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N* MDS-AD3 disassembly (LONG!)

by wh.sudbrink＠verizon.net

I'm working on putting a diskette on my SOL and getting CP/M running on it. Anyway, from what I can tell, it seems that a NorthStar MDS-AD3 is a controller commonly found in a SOL. I've acquired one and I'm in the process of checking it out. I dumped the boot ROM and it doesn't look anything like what's on Jim Battle's page. So I have hand disassembled it (see below) and it does make sense, it is all 8080 instructions. I don't know the history of this board, so it may have come out of a Northstar Horizon. I have two questions: 1) Does this disassembly look reasonable? 2) Will this run on a 2MHz 8080 (SOL) as opposed to a 4MHz Z80 (Horizon)? Slightly odd format disassembly follows: ; NOTES: 1) The address/hex values are correct ; (columns 0-15) ; 2) I think the instructions are correct ; (columns 17-29) ; 3) The comments are my best guess ; ; I'm particularly concerned about the timing loops ; around addresses E86A and E897. ; Also, will the read loops at E8B5 and E8BF be fast ; enough? E800 0E 0A MVI C, 0AH ; total number of retries (10) E802 3A 15 EB LDA EB15 ; controller command 15H: ; get A status, turn on motors E805 16 30 MVI D, 30H ; parameter to function call: ; number of sectors to wait (48) E807 21 0D E8 LXI H, E80D ; store return address in H, L E80A C3 D3 E8 JMP E8D3 ; "call" function to wait for D sectors E80D 3A 01 EA LDA EA01 ; controller order 01H: ; single density, ; side 0, ; step direction out, ; head step signal low, ; select drive 1 E810 21 16 E8 LXI H, E816 ; store return address in H, L E813 C3 4D E8 JMP E84D ; "call" function to wait for 2 sectors E816 06 0C MVI B, 0CH ; loop counter, loop 12 times E818 21 1E E8 LXI H, E81E ; store return address in H, L E81B C3 D1 E8 JMP E8D1 ; "call" function to wait for 1 sector E81E 3A 10 EB LDA EB10 ; controller command 10H: ; get A status, no command E821 E6 40 ANI 40H ; is the index flag bit set? E823 C2 2D E8 JNZ E82D ; jump if we got the index flag E826 05 DCR B ; decrement the loop count E827 C2 18 E8 JNZ E818 ; try again if there are tries remaining E82A C3 2A E8 JMP E82A ; STOP HERE!!!! loop here forever ; the following three instructions step the head in one track E82D 3A 21 EA LDA EA21 ; controller order 21H ; single density, ; side 0, ; step direction in, ; head step signal low, ; select drive 1 E830 3A 31 EA LDA EA31 ; controller order 21H ; single density, ; side 0, ; step direction in, ; head step signal high, ; select drive 1 E833 3A 21 EA LDA EA21 ; controller order 21H ; single density, ; side 0, ; step direction in, ; head step signal low, ; select drive 1 E836 C3 4A E8 JMP E84A ; jump to loop bottom E839 3A 20 EB LDA EB20 ; controller command 20H: ; get B status, no operation E83C E6 01 ANI 01H ; is the track zero flag bit set E83E C2 52 E8 JNZ E852 ; if we're on track zero, ; jump out of the step out loop ; the following three instructions step the head out one track E841 3A 01 EA LDA EA01 ; controller order 01H ; single density, ; side 0, ; step direction out, ; head step signal low, ; select drive 1 E844 3A 11 EA LDA EA11 ; controller order 01H ; single density, ; side 0, ; step direction out, ; head step signal high, ; select drive 1 E847 3A 01 EA LDA EA01 ; controller order 01H ; single density, ; side 0, ; step direction out, ; head step signal low, ; select drive 1 E84A 21 39 E8 LXI H, E839 ; load return address to above address ; (pretty funky, implements loop) E84D 16 02 MVI D, 02H ; parameter to function call: ; number of sectors to wait (2) E84F C3 D3 E8 JMP E8D3 ; "call" function to wait for D sectors ; we're now on track zero E852 21 58 E8 LXI H, E858 ; load return address in H, L E855 C3 D1 E8 JMP E8D1 ; "call" function to wait for 1 sector E858 3A 35 EB LDA EB35 ; controller command 35H: ; get C status, turn on motors E85B E6 0F ANI 0FH ; mask off the sector counter E85D FE 04 CPI 04H ; are we on sector 4? E85F C2 52 E8 JNZ E852 ; loop to look for sector 4 E862 3A 10 EB LDA EB10 ; controller command 10H: ; get A status, no operation E865 E6 04 ANI 04H ; see if read enabled (phase locked loop?) E867 CA 62 E8 JZ E862 ; loop while we can't read E86A 3E 09 MVI A, 09H ; timing loop counter E86C 3D DCR A ; decrement timing loop counter E86D C2 6C E8 JNZ E86C ; timing loop jump E870 3A 10 EB LDA EB10 ; controller command 10H: ; get A status, no operation E873 E6 20 ANI 20H ; is the double density flag bit set E875 C2 97 E8 JNZ E897 ; jump if we're double density ; the following three instructions step the head in one track E878 3A 21 EA LDA EA21 E87B 3A 31 EA LDA EA31 E87E 3A 21 EA LDA EA21 E881 21 87 E8 LXI H, E887 ; set the return address E884 C3 4D E8 JMP E84D ; "call" the function to wait for two sectors E887 21 8D E8 LXI H, E88D ; set the return address E88A C3 D1 E8 JMP E8D1 ; "call" the function to wait for 1 sector E88D 3A 35 EB LDA EB35 ; controller command 35H: ; get C status, turn on motors E890 E6 0F ANI 0FH ; mask off the sector counter E892 FE 08 CPI 08H ; are we on sector 8? E894 C2 87 E8 JNZ E887 ; loop to look for sector 8 E897 06 8C MVI B, 8CH ; loop count to skip header block (140) E899 11 40 EB LXI D, EB40 ; load D and E with controller command 40H: ; read data, no operation E89C 3A 10 EB LDA EB10 ; controller command 10H: ; get A status, no operation E89F 0F RRC ; rotate the body flag bit into the carry flag E8A0 DA AE E8 JC E8AE ; jump if we're in the body E8A3 05 DCR B ; decrement loop counter E8A4 C2 9C E8 JNZ E89C ; check for the body again E8A7 0D DCR C ; decrement the number of major retries and... E8A8 C2 2D E8 JNZ E82D ; start the whole thing again if we have any retries left E8AB C3 AB E8 JMP E8AB ; STOP HERE!!!! loop here forever E8AE 1A LDAX D ; read a byte into A (read command loaded into D, E above) E8AF 67 MOV H, A ; move the read byte into H E8B0 2E 01 MVI L, 01H : set L to 1 E8B2 77 MOV M, A ; store the read byte into <byte>01H (overwritten by E8B6) E8B3 07 RLC ; start calculating the check character E8B4 47 MOV B, A ; store the check character in B E8B5 1A LDAX D ; read the next byte E8B6 77 MOV M, A ; store the byte E8B7 A8 XRA B ; continue check character calc E8B8 07 RLC ; continue check character calc E8B9 47 MOV B, A ; store the check character in B E8BA 2C INR L ; increment memory address E8BB C2 B5 E8 JNZ E8B5 ; reading all 256 bytes (loop if more) E8BE 24 INR H ; next 256 bytes... E8BF 1A LDAX D ; read the next byte E8C0 77 MOV M, A ; store the byte E8C1 A8 XRA B ; continue check character calc E8C2 07 RLC ; continue check character calc E8C3 47 MOV B, A ; store the check character in B E8C4 2C INR L ; increment memory address E8C5 C2 BF E8 JNZ E8BF ; reading all 256 bytes (loop if more) E8C8 1A LDAX D ; read the check character E8C9 A8 XRA B ; compare to what we calculated E8CA C2 A7 E8 JNZ E8A7 ; retry the whole thing if we fail ; read success, jump into the code E8CD 25 DCR H ; back to the first 256 bytes E8CE 2E 0A MVI L, 0AH ; offset 10 E8D0 E9 PCHL ; jump to the read code ; the following code watches sectors go by E8D1 16 01 MVI D, 01H ; wait for 1 sector E8D3 3A 11 EB LDA EB11 ; controller command 11H: get A status, reset sector flag E8D6 3A 10 EB LDA EB10 ; controller command 10H: get A status, no operation E8D9 B7 ORA A ; set flags E8DA F2 D6 E8 JP E8D6 ; loop if the sector flag status bit is not set E8DD 15 DCR D ; decrement the loop count E8DE 3A 11 EB LDA EB11 ; controller command 11H: get A status, reset sector flag E8E1 C2 D3 E8 JNZ E8D3 ; loop if the loop count is not zero E8E4 E9 PCHL ; return (sort of) ; extra? E8E5 00 00 00 00 00 00 00 00 00 00 00 E8F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 E1 E9

24 years, 4 months

2
1
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Mac IIsi vs. IIci

by mythtech＠Mac.com

>> Ok... then it isn't a "PDS" slot in the generally sold PDS slot card >> world sense. > >Not true, because IIsis have their own type of PDS slot too (which is >compatible with the SE/30) and there are cards for those. > >The LCs are most notorious^Winfamous^Wnoted for having a PDS slot as their >primary means of expansion, but unique PDS slots are in other units. It's >just that the IIci's PDS slot is particularly underutilised because of all >its other expansion options. Oh, I agree... there are a number of different PDS slots for the Mac. I was just saying that generally speaking, if you see an item sold saying it is a "PDS" card, and nothing more... it *usually* means it is for the LC PDS, which is the PDS style found in/compatible with most of the macs that have a PDS slot. But like I said, if you are buying a PDS card for your mac... it is always best to make sure it will work with the style PDS you have... and not just assume that PDS means ALL PDS, or that unlabled PDS means LC PDS. I mean heck, off the top of my head, I can think of 7 different PDS slot styles. LC, LC3, SE, SE30, IIsi, 040, and PPC. And that doesn't count what might be odd PDS styles like the IIci Cache slot (I suspect other machines are like that as well, like the PM 6500 that the G3 upgrade fits in the Cache slot). And there may be more (this is just off the cuff). To add to confusion, some of these are compatible with each other (like LC/LC3, and SE30/IIsi), and then things like the 040 and PPC have almost no cards that work nativly with them, but rather expect an adaptor card to connect to the mobo slot. Yeah... Mac PDS is a fun world. -chris <http://www.mythtech.net>

24 years, 4 months

1
0
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Large ESDI Disks

by jeff.kaneko＠juno.com

On Fri, 1 Feb 2002 21:24:22 +0000 jpero(a)sympatico.ca writes: > The biggest ESDI HD I have currently; 1.3GB and second biggest is > 800MB (working w/ ultrastor U24F. Problem is with that Micropolis > 1.3GB ESDI I couldn't get it LLF'ed w/ Ultrastor U24F, I think > something is not set right despite that card supports 2048 cyls. > Help? This is the single biggest problem (that I've seen) with ESDI drives over 800MB: These suckers run with a 24MHz data rate. There are only two ISA controllers (that I know of) that can handle these: The WD-1009, and the Ultrastor 12F-24. I purchased a WD-1009 over the holidays, but haven't had the opportunity to test it. There are two versions of the WD-1009: One with a BIOS and one without. The ones without are utterly *worthless* (unless you're using it in a Compaq DeskPro that supports it). I don't even want to talk about the 12F-24. These things are so rare, I've seen maybe one or perhaps two offered on E-Pay in the past four years. Q-Bus 24MHz controllers are far more common, but troublesome to obtain nonetheless. I was extremely surprised that ESDI's are still being made (albeit for 'commercial' applications). Jeff ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/web/.

24 years, 4 months

3
2
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SUN SCSI vs non-SUN?

by mcguire＠neurotica.com

On February 3, Russ Blakeman wrote: > I was basically making sure that Sun SCSI was usable in other SCSI > applications, that they hadn't made them proprietary in some way. Nope, you're in the clear there. Sun's SCSI is very much standard, ordinary SCSI, and Sun systems have no [unimagined] unusual requirements for their SCSI drives. -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

24 years, 4 months

1
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Mac IIsi vs. IIci

by mythtech＠Mac.com

>It is, in fact, just a PDS slot. :-) Like all PDS slots, it is specific >to its model. > >Unlike the various PDS-slot-only Macs, since the IIci has plenty of NuBus >slots, the only things made for the IIci PDS are the cache cards and >processor upgrades (well, that I've ever seen). Ok... then it isn't a "PDS" slot in the generally sold PDS slot card world sense. Generally, an unspecified PDS slot refers to an LC PDS slot, otherwise it usually specifies that it is an SE PDS, a whatever PDS. (but that is a "generally" concept so when buying a PDS card, it is always good make sure it will work with the machine you have in mind) With that in mind, I would not count on the IIci as having a PDS slot, simply because it will be unlikely to find anything other than a cache card that fits it. At least if it was a more standard LC PDS, you could toss an ethernet card in there, keeping all 3 NuBus free for use. -chris <http://www.mythtech.net>

24 years, 4 months

2
1
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eBay: WOW L@@K R4R3 (no, really)

by mcguire＠neurotica.com

On February 3, Mike wrote: > > I almost soiled my pants when I saw this. I am not affiliated with the > > seller. > > > > http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=2000676134 > > Warning. There may be some legal entanglements here. This seller (Jerry > Williams) agreed to sell me these systems over negotiations last week and, > asked me to send in a deposit check which I did, and since then I have not > been able to get any response from him. 2 days later, he starts this > auction. I'm about to contact Ebay's Fraud unit and any other fly ointment > I might be able apply. That dickhead... Heh, you too, huh? I had a deal with him last week ("deal" meaning I had already written him a check and was waiting for him to email me his mailing address), then he asked me if I could give him more $$$ because he was getting other offers. I am REALLY pissed off at this asshole. -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

24 years, 4 months

3
2
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SUN SCSI vs non-SUN?

by mcguire＠neurotica.com

On February 2, Russ Blakeman wrote: > Here's a question for you SUn people - if I have a HP/Seagate ST19171WC SCA > hard drive in my server and found some drives that are Sun/Seagate ST19171WC > SCA drives, is there anything different int he Sun, ie they should work in > my HP server despite them being made for Sun by Seagate right? Just checking > and I'm guessing that they are exactly the same just labeled for the OEM by > Seagate and the firmware showing either HP or Sun when they show up in > various HD utilities. > > Thanks in advance for the help, I'm just making sure I didn't do too much > acid in the 60's (no wait I was only 13 in 69...that doesn't work) That whole "standard interfaces" thing makes this easy...just plug it in and all should be well. Some vendors (Auspex comes to mind) use custom firmware but I've never seen it make the drive incompatible with something else that speaks standard SCSI. -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

24 years, 4 months

5
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Multitech/Acer/Flite Micro-Professor MPF-1B manuals WTD

by philpem＠btinternet.com

Hi, After a very kind person (thanks Lee) sent me a copy of the schematics for the Multitech MPF-1B, I've managed to make a rudimentary (but realistic) MPF-1B emulator. Only problem now is, I can't test all the features because I don't have a manual! Could someone please scan the manual set for the Multitech/Acer (sold by Flite Electronics in the UK) Micro-Professor MPF-1 (not the MPF-1 Plus, that's a different machine altogether - the MPF-1B has 6x 7-segment red LED displays, the MPF-1 Plus has a green VFD display) or MPF-1B? Thanks. -- Phil. philpem(a)bigfoot.com http://www.philpem.btinternet.co.uk/

24 years, 4 months

1
0
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SUN SCSI vs non-SUN?

by rhblakeman＠kih.net

Here's a question for you SUn people - if I have a HP/Seagate ST19171WC SCA hard drive in my server and found some drives that are Sun/Seagate ST19171WC SCA drives, is there anything different int he Sun, ie they should work in my HP server despite them being made for Sun by Seagate right? Just checking and I'm guessing that they are exactly the same just labeled for the OEM by Seagate and the firmware showing either HP or Sun when they show up in various HD utilities. Thanks in advance for the help, I'm just making sure I didn't do too much acid in the 60's (no wait I was only 13 in 69...that doesn't work)

24 years, 4 months

2
1
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paging Daniel Seagraves

by dpeschel＠eskimo.com

Daniel, I sent mail to your TOAD acount and I was wondering if you got it. Or if you could take a look at the "any tools for analyzing PDP-10 code?" thread on CLASSICCMP, that amounts to the same thing. Thanks, -- Derek

24 years, 4 months

1
0
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Large ESDI Disks

by ken＠seefried.com

From: Julius Sridhar <vance(a)ikickass.org> > >There are still ESDI disks being made. I think the biggest one >right now is 3.04 GB. > Who makes them? Ken

24 years, 4 months

7
10
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Maybe OT: Network ethics

by mcguire＠neurotica.com

On February 2, Jeff Hellige wrote: > > I guess my opinion, which isn't very popular here, is that unless > >permission has been explicitly given, one should not assume permission > >to a local LAN, or internet access through the LAN. I do recognize that > >my position is due to working frequently at secured sites. One such > >facility, in San Antonio, prohibits ANY access to their network by > >non-employees. Contractors must tell a technician what commands to > >enter, and which buttons to click. > > I agree with the above. Nobody should ever just assume it is > ok to do whatever they wish on somebody elses network withouth > getting explicit permission first. I have similar problems with > contractors in a similar secure building. If for no other reason > than it is bad etiquette to impose yourself into someone elses area > without permission to do so. However, the admin must assume that someone WILL just walk in and do whatever they wish, when the admin least expects it...some people do it because they're assholes, some just do it without thinking because they weren't raised to have any manners. One must strive to make the network resilient to such crap. -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

24 years, 4 months

7
6
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OLD RAM and board clearance

by kenziem＠sympatico.ca

Of of my local resellers (Ottawa Canada == Canadian dollars!) is moving and clearing out old stock. They can be reached at ellfin@<NOSPAM>brookecliff.com 72 pin simms. Min lot 100 pieces please. 250 8mb 60 ns 300 4mb 60 ns 300 plus 1 mb (great keychains) CPU's 250 486 SX-25 (min lot 100) 30 486 DX33 (min lot 30) 10 486 DX2 -66 (min lot 10) Not sure if anyone here has any use for these. Make us an offer we can;t understand. Thanks Will sell in min lots only no ones or twos please - thanks

24 years, 4 months

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Looking for a WD 1001 55 Disk controller

by mhstein＠canada.com

Sounds similar to the one I've got; it does have provision for four data cables, but only two have connectors installed. So what does this 40 pin host connector connect to? And what happened to the person who started this thread? Was he looking for a chip or a board? mike --------------Original Message------------ From: "Richard Erlacher" <edick(a)idcomm.com> Subject: Re: Looking for a WD 1001 55 Disk controller The WD 1001-55 (the "BIG" version) had four data cable connectors, IIRC. In fact, it didn't look very different from the 1000-55 at all. Both of those boards used the 8X300/305 (depending on version) and the WD1100 chipset. I had the datasheet for that board in my hands less than two hours ago, but don't now remember where ... <sigh> another senior moment, I guess. The small versions (1000-05, etc) used the WD1010 chip and a couple of others. They do seem to be pretty much interchangeable, though. My own WD 1000-55 board had a 50-pin connector rather than a 40-pin host connector. The extra signals were just ground and power, though. The ones I've kept only have the 40-pin host connector, which makes them all compatible at the interface. Dick

24 years, 4 months

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Maybe OT: Network ethics

by jfoust＠threedee.com

>> Or even have it so that unused RJ45 wall jacks are wired to a nearby >> electric outlet. "Oh, you plugged into one of our proprietary power >> ports...". Wow, you guys really have that sysadmin attitude down pat. "Let's make a button called 'Push Me' and make it destroy their laptop. After all, the Policy Book says 'Don't Push Me.'" Non-technical users will always put square pegs in square holes. - John

24 years, 4 months

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Maybe OT: Network ethics

by pete＠dunnington.u-net.com

On Feb 2, 23:54, Jeffrey S. Sharp wrote: > On Sat, 2 Feb 2002, Tothwolf wrote: > > > For some ultra-secure type site, wiring the other two pairs to detect a > > connection, and or to deliver 48VDC (from a spare telephone switch > > supply) would deter all but the most determined. > > Or even have it so that unused RJ45 wall jacks are wired to a nearby > electric outlet. "Oh, you plugged into one of our proprietary power > ports...". :-) You would have a serious liability problem with that. Damage to equipment, fire hazard, danger to personnel (including authorised personnel who have to use patch panels etc), and at least here it would be illegal as the low-voltage RJ45 sockets, cabling, etc, don't meet insulation and protection requirements. > Or use (or invent, if they do not exist) wall jack panels that have a > lockable metal door. They do exist, but are expensive, and you need to fix the PC end too. Anyway, people just leave them unlocked. -- Pete Peter Turnbull Network Manager University of York

24 years, 4 months

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Maybe OT: Network ethics

by pete＠dunnington.u-net.com

On Feb 2, 23:45, Doc wrote: > On Sun, 3 Feb 2002, Alexander Schreiber wrote: > > > How about using DHCP to ground them? As in: > > - all machines legitimately using the network are known as well as > > their ethernet addresses, > > - assign all those legitimate machines an (basically fixed) IP via > > DHCP, > > - for all unregistered machines, offer them IP addresses in the > > 127.0.0.0 range as well as themself as their default router and other > > stuff to make their network connection a notwork connection > > I kind of like that! No! I *REALLY* like it! Have you tested this? Yes, it works. But it's not sufficient, in the sense that it only stops those who use DHCP. -- Pete Peter Turnbull Network Manager University of York

24 years, 4 months

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Maybe OT: Network ethics

by pete＠dunnington.u-net.com

On Feb 2, 22:38, Tothwolf wrote: > Of course, there is a conceptually simple way to prevent 99.9% of people > from accessing a lan in this kind of situation. Wire the wall-mounted RJ45 > jacks to use the normally unused pairs for TX/RX, and use custom made > patch cables to connect to the computer's NIC. For some ultra-secure type > site, wiring the other two pairs to detect a connection, and or to deliver > 48VDC (from a spare telephone switch supply) would deter all but the most > determined. We've actually investigated this :-) I'll merely say that it will work, but only where the socket on the PC's NIC is physically inaccessible, such as in the case of our classroom PCs which are mounted in stell cuffs. Otherwise, of course, the miscreant simply unplugs the PC end of the patch cable. There are some liability issues too (post a warning notice). -- Pete Peter Turnbull Network Manager University of York

24 years, 4 months

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Sony OA-D32W Floppy

by pete＠dunnington.u-net.com

On Feb 2, 19:55, Glen Slick wrote: > Does anyone have any info on Sony OA-D32W 3.5" floppies? In particular the > one I have is a model OA-D32W-11 with a broken head. This was in an HP > Integral PC. I don't suppose there is much hope of finding a working > replacement. It has a 26-pin connector. Any chance a standard 34-pin PC > 3.5" floppy could be wired up to the 26-pin interface and made to work as a > replacement? No, not straight off. I'm looking at the service manual for an OA-D31V which is an earlier version of that. It's a 600rpm drive, and normal PC floppies are 300rpm. Apart from that, it would work, so if you could persuade the PC controler to work at 2x the data rate, it should work. The pinout for the connector is: 1 /MOTOR ON 2 /DS0 3 GND 4 /DS1 5 GND 6 /DIR IN 7 GND 8 /STEP 9 GND 10 /WR DATA 11 GND 12 /WR GATE 13 GND 14 /HD LOAD 15 GND 16 /SIDE SEL 17 GND 18 /INDEX 19 GND 20 /TRK 0 21 GND 22 /WRT PROT 23 GND 24 /READ DATA 25 GND 26 /READY -- Pete Peter Turnbull Network Manager University of York

24 years, 4 months

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Maybe OT: Network ethics

by pete＠dunnington.u-net.com

On Feb 2, 22:58, jpero(a)sympatico.ca wrote: > Psst... I noticed something. > > > into random ports. We don't allow students to plug in laptops; there's > > normally no need as we provide a large number of PCs on 24-hour 364-day > > access. > > Except for that day out of 365 days? :-) That's Christmas Day, when the whole University is closed; there are no students or staff on campus (except Security). -- Pete Peter Turnbull Network Manager University of York

24 years, 4 months

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Maybe OT: Network ethics

by pete＠dunnington.u-net.com

On Feb 2, 22:39, Dave McGuire wrote: > On February 3, Pete Turnbull wrote: > > Even on a switched network. Case in point: a couple of weeks ago, someone > > plugged an unauthorised laptop (we assume) into our student network. We > > surmise that it was misconfigured, it acted as a DHCP server, and gave out > > a lot of spurious DHCP responses. Not pretty. > > Eeeeeek. Sounds like someone who needs to have his fingers broken! Maybe only one finger -- he didn't *mean* to cause any trouble ;-) -- Pete Peter Turnbull Network Manager University of York

24 years, 4 months

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Bondwell

by vcf＠vintage.org

The Bondwell laptop is gone :( -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

24 years, 4 months

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Maybe OT: Network ethics

by mythtech＠Mac.com

>like walking into someone else's house for the >first time and helping yourself to whatever's in the fridge. My mom >taught me you just don't DO stuff like that...but some people just >seem to do it anyway. :-( Hey... I have to keep my door locked because a friend of mine does this! If I don't keep the door locked, he will just stop by from time to time, walk in, and help himself to food... then sit down and watch TV, usually without even saying hello!!! (yeah, yeah, some friend right) -chris <http://www.mythtech.net>

24 years, 4 months

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Maybe OT: Network ethics

by mythtech＠Mac.com

> I guess my opinion, which isn't very popular here, is that unless >permission has been explicitly given, one should not assume permission >to a local LAN, or internet access through the LAN. I admit, I am guilty of this. One two different occasions, I was renting room space in a hotel/conference center (no, not a sleeping room, but a meeting room), and I plugged my mac laptop into their marked ethernet jacks, and used DHCP to gain access, and get out to the internet... and no, I was not paying for (nor was charged for) use of it (yes, it was an extra fee if I "officially" wanted to use it). I'm a baaaad boy Abbot -chris <http://www.mythtech.net>

24 years, 4 months

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Freight/shipping company recommendations?

by vaxzilla＠jarai.org

I'm looking for referrals to any decent shipping companies people here have dealt with in the past. Preferably, ones who can deal with the transportation of "obsolete" computer equipment within the continental U.S. I've got a lead on a couple of moderate sized computer systems, about 2.25ft x 4.20ft x 5ft in size, and probably around 800lbs each. (The weight is just a guess.) I'd need door-to-door service on this one. Someone who can pick them up at a loading dock, and wheel them into a a garage for me on the other end. -brian.

24 years, 4 months

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Maybe OT: Network ethics

by mcguire＠neurotica.com

On February 2, Jeff Hellige wrote: > True. I was looking at it from the point as to whether it > was ok for someone to do it at all, regardless of what thier motives > might be behind it or whether the network was secure enough to handle > it if someone did happen to do so. With our LAN for instance, we Well don't take my first comment the wrong way...it's certainly RUDE at the very least...like walking into someone else's house for the first time and helping yourself to whatever's in the fridge. My mom taught me you just don't DO stuff like that...but some people just seem to do it anyway. :-( > don't enable or allow DHCP at all...everyone is on static IP > addresses. We're always having to track down conflicts though > because there's a small group within the building that think they can > do whatever they wish. Sounds like it's time to break some fingers. I've been saying that a lot lately. I wonder if I'm becoming less tolerant of others. Nah. -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

24 years, 4 months

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Maybe OT: Network ethics

by pete＠dunnington.u-net.com

On Feb 2, 20:50, Dave McGuire wrote: > On February 2, Doc Shipley wrote: > > This is sort of a sanity check. I'm putting the question here because > > of the cumulative years of professional experience here, as well as an > > "international" perspective. > > > > How would you react to a guest in your (not normally open to the > > public) building plugging a computer into a random ethernet port and > > asking for a DHCP lease? Is there any non-emergency consideration that > > would make that appropriate? No, not on my network. At least, not unless they ask first. I've had to deal with this a few times, sometimes from students, once or twice from staff, and a few times from visitors. They wouldn't get a DHCP lease, but they might try to "borrow" an address. They're usually very surprised when someone turns up within a few minutes and asks what they're doing. > In a well-designed network, I wouldn't worry too much about it. On > an unswitched network with unencrypted root passwords floating around, > though, I'd have...erm, "issues" with it. Even on a switched network. Case in point: a couple of weeks ago, someone plugged an unauthorised laptop (we assume) into our student network. We surmise that it was misconfigured, it acted as a DHCP server, and gave out a lot of spurious DHCP responses. Not pretty. We've noticed a lot of problems with misconfigured Windows 2000 machines in particular, and do not permit unauthorised machines on our net for that reason, amongst others. And we can enforce it -- technically, it's theft. Also consider what could happen if someone plugged in a machine and masqueraded as a trusted host. We have facilites to provide addresses to genuine visitors and to protect them from our users and v.v. We don't allow people to plug random things into random ports. We don't allow students to plug in laptops; there's normally no need as we provide a large number of PCs on 24-hour 364-day access. > You bring up an interesting point, however. A good (if somewhat > simplistic) goal for the security of a network might be to say if > you'd be nervous about someone doing this, then you still have things > left to fix. :) Agreed. But there's always something left to fix :-( -- Pete Peter Turnbull Network Manager University of York

24 years, 4 months

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Maybe OT: Network ethics

by pete＠dunnington.u-net.com

On Feb 2, 20:25, Doc wrote: > A little amplification - > The building in question is a secured building. Guests are required > to log in & out, and rooms other than snack area & restrooms are locked. > It is a government building. Space is donated to a local computer > group. A member of that group simply plugged into the local LAN. The > building's rep did state that the port should not have been left hot, > and nobody has admitted, or claimed, that the member did anything but > access the internet. Doesn't matter. A large proportion of computer misuse (figures vary, but pretty well everyone agrees that they're significant) is from inside, in any sizable organisation. Suppose someone else was up to no good, the visiting machine was insecure (highly probable), and was spotted by a scanner. It becomes a gateway. > I guess my opinion, which isn't very popular here, is that unless > permission has been explicitly given, one should not assume permission > to a local LAN, or internet access through the LAN. You won't get any argument against that from me :-) -- Pete Peter Turnbull Network Manager University of York

24 years, 4 months

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cheap 16MB 30-pin RAM on eBay

by Richard.Sandwell＠roebry.co.uk

>>On Fri, 1 Feb 2002, Geoff Reed wrote: >> I've dealt with Sunguk many times and he's a stand up guy, the 1 time I >> got a bad Dimm from him for my sp[arc ultra he refunded the $ to me with no >> problems. And Doc Opined :- > Yeah, I read through the negatives, and they all had the same flavor. >Mostly it seems Mr. Sunguk doesn't babysit. I wasn't so worried that I >refrained from buying. I wouldn't try it on most PC's though. Every PC >I've had that took 30-pin SIMMs wanted parity. Was that the norm, or my >luck? You are right, Sunguk doesn't suffer fools. He is however very good - one of the positives is from me - I bought 128mb of Sparc5 Ram (that rare-ish 5volt Dimm stuff) from him a few months back and he made an exception and shipped internationally. Question is - does my '030 Cube take parity or non-parity.....eek! I used to know this... //Rich Doc <doc(a)mdrconsult.com> To: classiccmp(a)classiccmp.org Sent by: cc: owner-classiccmp@cla Subject: Re: cheap 16MB 30-pin RAM on eBay ssiccmp.org 02/02/2002 02:52 Please respond to classiccmp Doc

24 years, 4 months

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Maybe OT: Network ethics

by mcguire＠neurotica.com

On February 3, Pete Turnbull wrote: > Even on a switched network. Case in point: a couple of weeks ago, someone > plugged an unauthorised laptop (we assume) into our student network. We > surmise that it was misconfigured, it acted as a DHCP server, and gave out > a lot of spurious DHCP responses. Not pretty. Eeeeeek. Sounds like someone who needs to have his fingers broken! -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

24 years, 4 months

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Maybe OT: Network ethics

by pete＠dunnington.u-net.com

On Feb 2, 20:50, Chris wrote: > > How would you react to a guest in your (not normally open to the > >public) building plugging a computer into a random ethernet port and > >asking for a DHCP lease? Is there any non-emergency consideration that > >would make that appropriate? > > I think that all has to do with WHO the guest is, and WHY they plugged in. > > My network (and building) is normally closed to the public, but when we > have clients in, and they bring their laptops, I generally allow them > access to use printers, or gain internet access. But then, this is > something that I plan to offer, so I actually have DHCP services > specifically for this (and keep the rest of the network locked down to > prevent them from wandering). So maybe I'm not as closed as you are. In very broad terms, we do the same -- by arrangement. However, it's one thing to make an arrangement for a specific visitor, when you know what they're (supposed to be) doing and where they're supposed to be, and can keep an eye on them, and quite another to let anyone plug something in. -- Pete Peter Turnbull Network Manager University of York

24 years, 4 months

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Maybe OT: Network ethics

by mcguire＠neurotica.com

On February 2, Doc wrote: > The building in question is a secured building. Guests are required > to log in & out, and rooms other than snack area & restrooms are locked. > It is a government building. Space is donated to a local computer > group. A member of that group simply plugged into the local LAN. The > building's rep did state that the port should not have been left hot, > and nobody has admitted, or claimed, that the member did anything but > access the internet. > > I guess my opinion, which isn't very popular here, is that unless > permission has been explicitly given, one should not assume permission > to a local LAN, or internet access through the LAN. I do recognize that > my position is due to working frequently at secured sites. One such > facility, in San Antonio, prohibits ANY access to their network by > non-employees. Contractors must tell a technician what commands to > enter, and which buttons to click. I think in a secure gov't facility, my approach would be a little different...having once been in charge of the network at such a facility, I can attest to the fact that there is a fair amount of paranoia, often rightly so. -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

24 years, 4 months

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Boston CM (was Re: Computer Museum of America ...

by geoff＠pkworks.com

Well, you haven't been to the Boston Computer Museum is quite some time, for it is no more. Several years ago the collection was shipped out to Sunnyvale, where it is the nucleus around which The Computer History Center is forming. There are several private collectors in the Boston area (myself included), but the only computer museums anywhere nearby are in Rhode Island. I am Vice President of the Rhode Island Computer Museum in North Kingston, RI (see www.osfn.org/ricm), and we have a large and expanding collection (which grew by a VAX 11/780 just this past weekend), and a display space which we have badly outgrown - a problem we are working mightily to solve. In Providence, RI, is the RetroComputing Society of Rhode Island (see www.osfn.org/rcs ), of which I am a member. It too is rather pressed for space, thanks to zealous collecting. I'd like to invite everyone on this mailing list to come visit us both. And while I can't say that we're anywhere near as sophisticated in our presentations as the old Boston Computer Museum, there is plenty of stuff of interest to all. From: Bob Shannon <bshannon(a)tiac.net> >I've been to the Boston Computer Museum many many times >from the late 80's on. > >At one point I contacted the Curator to see if the museum would be >interested in displaying some of the restored machines that several >local collectors had at the time. > >The very notion of computer restoration struck the Museum as insane, and >they wanted nothing to do with such displays, nor even hosting meetings >of collectors and restoration fans. One person even had a PDP 10, and >really needed some space to set the thing up. I was going to put a MIT >CADR on display, and perhaps my 1968 HP 2114, etc. The Museums response >was that unless we were crossing their palms with money, they wanted >nothing to do with us, it was all about donations. > >It was not too long after this that I began to think vintage computer >collecting was some sort of deviant behavior or something, and I became >much less active (despite having a oversized 2 car garage to fill!). > >Not until many years later did I learn of the VCF events, and I joined >the list. > >During that time, the PDP-10 my friend had was lost to scrappers because >he had no space to store it, and many other cool machines were lost as >well. > >There have also been rumors of very nice machines being donated to the >B.C.M only to be locked away, unrestored, and worse, sold off as scrap >to feed the cash hungry so-called museum. > >Basically, the B.C.M was a social club for a select crowd, and its >primary function was never to preserve and display computing history. > >John Allain wrote: > >> Derek Peschel wrote: >> > Several years ago it was very good. Then it slipped. >> >> Bryan Pope >> > I first came to Boston. It was only ..._okay_... >> >> Bob Shannon >> > The Boston computer museum was a total joke. >> >> I went twice, perhaps 1983 and 1985. >> 1985 it was rather good, with real historic interest >> shown, none of the Bozo's playground stuff that >> it apperently moved to in the early 90's. >> 1983/2 was Before it officially opened, where it >> was just Gwen and Gordon Bell's corporate >> sponsored collection in Marlborough. Highly >> recommended, though hard to get to now I'm >> afraid. >> When did you go and what was wrong? >> >> John A. > > > >

24 years, 4 months

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Maybe OT: Network ethics

by mcguire＠neurotica.com

On February 2, Doc Shipley wrote: > This is sort of a sanity check. I'm putting the question here because > of the cumulative years of professional experience here, as well as an > "international" perspective. > > How would you react to a guest in your (not normally open to the > public) building plugging a computer into a random ethernet port and > asking for a DHCP lease? Is there any non-emergency consideration that > would make that appropriate? In a well-designed network, I wouldn't worry too much about it. On an unswitched network with unencrypted root passwords floating around, though, I'd have...erm, "issues" with it. You bring up an interesting point, however. A good (if somewhat simplistic) goal for the security of a network might be to say if you'd be nervous about someone doing this, then you still have things left to fix. :) -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

24 years, 4 months

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Maybe OT: Network ethics

by mythtech＠Mac.com

> How would you react to a guest in your (not normally open to the >public) building plugging a computer into a random ethernet port and >asking for a DHCP lease? Is there any non-emergency consideration that >would make that appropriate? I think that all has to do with WHO the guest is, and WHY they plugged in. My network (and building) is normally closed to the public, but when we have clients in, and they bring their laptops, I generally allow them access to use printers, or gain internet access. But then, this is something that I plan to offer, so I actually have DHCP services specifically for this (and keep the rest of the network locked down to prevent them from wandering). So maybe I'm not as closed as you are. BUT... even with my plans for outside people to be able to plug in... if somebody walked in off the street, and tried to do the same... I would NOT be happy and would promptly escort them out of the building (and depending on what I thought they were up to... would probably call the local PD to file a report against them). -chris <http://www.mythtech.net>

24 years, 4 months

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cheap 16MB 30-pin RAM on eBay

by Richard.Sandwell＠roebry.co.uk

B****r. Early boot Rom in my cube. Thats why it never worked with 4mb Simms. It all becomes clear now. Time to pester Rob at blackholeinc, I guess..... //Rich Jeff Hellige <jhellige@earthlink. To: classiccmp(a)classiccmp.org net> cc: Sent by: Subject: Re: cheap 16MB 30-pin RAM on eBay owner-classiccmp@cla ssiccmp.org 02/02/2002 19:13 Please respond to classiccmp >You are right, Sunguk doesn't suffer fools. He is however very good - one >of the positives is from me - I bought 128mb of Sparc5 Ram (that rare-ish >5volt Dimm stuff) from him a few months back and he made an exception and >shipped internationally. Is that the same 5V FPM 168pin DIMM as used in early PowerMac's? >Question is - does my '030 Cube take parity or non-parity.....eek! I used >to know this... Here's the FAQ at Peanuts concerning memory: http://www.peanuts.org/faq-serve/cache/174.html Jeff -- Home of the TRS-80 Model 2000 FAQ File http://www.cchaven.com http://www.geocities.com/siliconvalley/lakes/6757

24 years, 4 months

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Q-Bus fear and other DEC busses ....

by mcguire＠neurotica.com

On February 1, Gunther Schadow wrote: > I read a web article the other day where the guy describes the > various forms of the Qbus and he also said that you could fry > certain cards when you stick'em in a wrong version of the Qbus. This is indeed correct...if you plug an RLV11 into a Q/Q backplane instead of a Q/CD backplane, for example, you'll let out the magic smoke. > Since I have a uVAX II and a PDP11/03 I would want to know if > I can mix and much cards with thoese busses or if I would fry > a K[ZF]QSA board sticking it into the wrong bus. Dunno about the 'QSAs in particular...but in general things should work, except for cards with 16/18/22 bit address issues. > Also, why was the need for grant continuity cards an advantage? It's not an "advantage" per se...just what the bus needs. Several busses use schemes like this...for example, with some high-speed peripheral controllers in VME Sun systems, you need to remove the BG3 and IACK jumpers from the other side of the backplane. There are no grant "cards" but there are indeed grant jumpers. > The OMNIBUS didn't need it but the UNIBUS (and Q-bus?) do. Omnibus is a "straight" bus...pin 1 goes to pin 1 on all slots, pin 2 to pin 2, etc...there are no hardware-prioritized "daisy-chain" signals like those found in some other busses. > Also, what's the deal about grant continuity cards, they seem to > just have a few lines shorted. In the UNIBUS box next to my > VAX 11 it has some intermediary open slots but only one grant > card plugged in. How could that work? Also, why can you stick If those slots are all straight Unibus, it likely WON'T work. :) > 1x or 2x cards into the different sections, is there a difference > where you put them? Why is the feed to the UNIBUS only a 2x card > and where must you plug that? Is it magic? SPC slots..."small peripheral controller" I believe is the correct expansion of that acronym...you'll want to grab a pdp11 unibus processor handbook for that info...it's all in there. > Are there UNIBUS backplanes with more than 9 rows? None that I've seen. I've seen 4- and 9-slot ones. -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

24 years, 4 months

3
3
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Another Nile in North East

by dancohoe＠oxford.net

There's another Nile with 4 large racks of drives in a scrapyard in Ottawa. I doesn't look like it's been there long. I should have spent more time checking it out. Likely Mike Kenzie could take a look at it and report back since I only get to Ottawa occasionally. Please see my post to follow with questions on the Pyramid 90x. Dan Cohoe

24 years, 4 months

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