test-drb

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101090 discussions

by thomas.gardner＠sbcglobal.net

> Message: 3 > Date: Tue, 4 May 2010 16:52:54 -0700 > From: dwight elvey <dkelvey at hotmail.com> > Subject: RE: Drive recovery > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <SNT129-W423C1F47E5486E7A1E8EFFA3F30 at phx.gbl> > Content-Type: text/plain; charset="iso-8859-1" > > ---snip--- > > Hi > If I was running a drive recovery business, every drive that came in > would be opened first in a clean room before powering on. If there > was a failure of one of the disk, shipping could have distributed bits > to unaffected surfaces. > I don't think I could run it any different than that. I'd have to charge > for that as well. > Dwight Since most drive failures are not head disk interferences much less a crash, the proposed process would unnecessarily both add cost and increase the risk of head disk interference without, IMO, significantly changing the data recovery probability. The small particles that do the most damage are not visible so I am not sure what one would do upon opening a drive unless there are many large visible particles indicative of a rare catastrophic head crash. When there is a catastrophic head crash the debris is well distributed by the rotating disks, damaging all the heads and disks then. At this point the damage is done and subsequent shipment and testing is not likely to do much more damage. Furthermore, it is extremely difficult, perhaps impossible and certainly expensive to recover data when there is such a catastrophic failure. A simple audio test should be sufficient to detect a catastrophic failure at which point you turn the drive off and consider the very limited options available. One might consider a particle count test for contamination but then it is not clear what one would do about it, purge cycle perhaps. So it seems to me that opening every drive is of little value Tom

15 years, 11 months

MCA Sound Card?

by derschjo＠mail.msu.edu

I've got a PS/2 Model 80 (totally tricked out with a 40Mhz Cyrix 386->486 upgrade and 48mb ram) that I have a hankering to do some old DOS gaming on. Don't ask me why I want to do this on a PS/2, it makes no sense -- I just do. I lack any sort of sound device, however, and they seem to be hard to find these days... Anyone have an MCA sound card (something that is SoundBlaster compatible would be very useful...) they'd be willing to sell or trade? I've got a lovely M-Motion Video Adapter/A (capture video on your PS/2!) to get rid of :). Thanks as always, Josh

15 years, 11 months

B&C Microsystems

by adolfo210511＠att.net

From: "Adolfo Bustos" <adolfo210511 at att.net> To: <cctech at classiccmp.org> Subject: B&C Microsystems 1409 Prom Burner Date: Thursday, May 06, 2010 7:54 AM cctech at classiccmp.org M H Stein Hi, Mike; Do You have the software "burn.com" for the B&C Microsystems 1409 Prom Burner, it's run Windows XP? appreciate your answers. thanks in advance Adolfo

15 years, 11 months

Quick question -- Sharp PC-1211

by evan＠snarc.net

Hi all -- quick question for anybody who has a Sharp PC-1211 -- is there a patent number on the back, and if so, what is it?

15 years, 11 months

A fun thought-experiment

by lproven＠gmail.com

Everyone knows the "$100 laptop", the OLPC XO-1 machine that spawned the Intel Classmate which in turn spawned the whole "netbook" market. I will warrant that fewer know of the Indian $12 PC, based on a clone of an old Nintendo: http://www.techtree.com/India/News/12_PC_Based_on_a_Game_Console/551-91911-… http://www.computerworld.com/s/article/9111759/_12_Indian_TV_computer_a_kno… The $12 PC is horribly compromised, but it's a good idea at heart: a computer so cheap it's affordable for the urban poor. But if one were to try to design an actual computer that cheap, something programmable that could maybe even do email and telnet and really simple TCP/IP-type stuff like that, what would you put in the box? I am taking it as more or less a given that it would have to be a VERY simple 1980s-style 8-bit machine. The easiest way might be to clone one of the 80s home computers, implement it on a chip with some extra software, like Jeri Ellsworth's fantastic Commodore 64 Direct-TV device. But which 8-bit? If you had to fit an entire computer, with storage and software, into an FPGA or some similar device and install it in a keyboard, with a couple of USB ports for storage and connection to a cellphone for communications... Which would be the best, most versatile, capable 1980s 8-bit machine to use? An Apple II with loads of options in virtual "slots"? A Commodore 64, for the graphics, sound and huge games library? A Spectrum, for its simplicity but large range of programming languages and so on? A BBC Micro, with the best BASIC ever and sideways ROM support for additional features? An MSX2 machine, some of the latest and best-equipped 8-bitters? Something exotic, like an Elan Enterprise or MGT SAM Coup?? Or a 1970s mini, like the Russian Electronika BK, a PDP/11-compatible home computer? http://en.wikipedia.org/wiki/Elektronika_BK -- Liam Proven ? Profile: http://www.linkedin.com/in/liamproven Email: lproven at cix.co.uk ? GMail/GoogleTalk/Orkut: lproven at gmail.com Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 ? Fax: + 44 870-9151419 AOL/AIM/iChat/Yahoo/Skype: liamproven ? LiveJournal/Twitter: lproven MSN: lproven at hotmail.com ? ICQ: 73187508

15 years, 11 months

Selling some of my collection

by joachim.thiemann＠gmail.com

Hello, unfortunately, I am anticipating a move in the future, and thus have to make some decisions about my stuff. And I decided to get rid of all my classic macs (all of them compacts). A 128k (from before they were thus labeled), an SE/30 (with network card and NetBSD installed), and a SE. All of them working fine (well, the display of the SE/30 needs a bit of adjustment of an internal pot: too bright! I'll fix that this weekend). The 128k is in the original carrying bag, and in great physical and working shape. I have posted pics on my website: http://www.ece.mcgill.ca/~jthiem/classiccmp.html No idea what I can ask for these; and shipping them would be a good chunk of change, too. So I'd prefer a local sale. Make an offer, preferably for all of them together. Joe. -- Joachim Thiemann :: http://www.tsp.ece.mcgill.ca/~jthiem

15 years, 11 months

free for pickup; dec TSZ07 9-track tape drive & Tek 453 scope

by brad＠heeltoe.com

Hi, If anyone in the Boston area wants either of these, they are free for pickup: - DEC TSZ07 SCSI 9-track tape drive. It worked fine last time I used it. I think it's 1600bpi only. It's clean but big and heavy. technically it's "desktop", and it is sitting on a table now. - Tek 453 scope Also works last time I used it. It's a little dirty but functional. Two channels, 50Mhz. not as heavy as the tape drive :-) a nice simple scope. I'm available in Arlington MA most days 9-5pm. I could show up in the evening if that works better for someone. -brad Brad Parker Heeltoe Consulting 781-483-3101 http://www.heeltoe.com

15 years, 11 months

Tek 4010 for sale

by pat＠computer-refuge.org

I have listed my Tek 4010 on ebay (finally) http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=220600550062 Pat -- Purdue University Research Computing --- http://www.rcac.purdue.edu/ The Computer Refuge --- http://computer-refuge.org

15 years, 11 months

Drive recovery

by shoppa＠trailing-edge.com

> In general, I'm happy that the data was recovered. > I'm unhappy in the sense that I'm out $800 without any explanation, > or new professional connection to a service I might need to use in > the future, and for the yucky feeling of dealing with clueless > and misleading customer service people. Not trying to sound pessimistic but most businesses are set up to deliver a service or product for the money. It is a kind of professionalism (although not the profesionalism you expected) to deliver the same uniform service to all customers. When your expectations fall outside the standard services there can be a kind of impedance mismatch going on... you don't get what you want, they probably never understood what you wanted, there may not even be a mechanism in place to figure out what you really wanted. Technically I think your expectations were very reasonable especially considering it was just a NVRAM failure ... and money wise them charging you for clean room services in the case of a NVRAM failure makes no sense at all. So I understand your dissatisfaction that way. At the other end, there are professional consulting companies which do really good at sucking up lots of $ listening to what the customer wants but never have the obligation of actually delivering anything at all. A huge chunk of the IT industry is set up that way. Tim.

15 years, 11 months

Bell and Howell Apple II+'s?

by wgungfu＠gmail.com

Anyone on the list have one with the backside expansion and side I/O port? I just picked up two of them, one without any of the mods that's in great shape and another that's with those mods but it's in pieces. All the actual connectors and such from the side port and the back carriage are just loose (not hooked up to anything on the board) and half the chips are missing from the II+ board. Considering combining the two units but have no idea where everything is supposed to hook up. Marty

15 years, 11 months

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