test-drb February 2007

test-drb@ccmp.vtda.org

208 participants
390 discussions

by c.murray.mccullough＠gmail.com

The quintessentail 'arty' machine I still say is the Coleco ADAM! Not so much for its external appearance but my its internal structure was worth crowing about. And it was a bargain in 1984's 8-bit computer crash. Oh. So sad! And 'artsy-fartsy'. Haven't seen that term since I came across a hang-out/bar/folk-arts place in Tokyo in 1997. Happy computing! Murray :)

17 years, 8 months

Floppy Diskette Interface Signals & Timing

by river＠zip.com.au

Hi, I've been trying to find (on the net) information regarding the signal timing for the 3.5inch floppy diskette drive. I want to play around with one and connect it to one of my home-brewed systems (6502 or 8085), but I need to know the timing of the signals, plus what the different logic levels means on some signals, etc. I can get plenty of information regarding the 34-pin connector and signal names, but nothing on timing and logic levels. I'd be most happy if someone could illuminate me to where I could get this information. river

17 years, 8 months

Off-topic but still funny.

by fireflyst＠earthlink.net

We were talking in the ccmp IRC channel and I thought I'd share this hi-larious photo: http://tinyurl.com/2884e4 Enjoy.

17 years, 8 months

Google on hard drive failures

by aek＠bitsavers.org

> is there currently or will there ever be a good long time > permanent solution for good promising backups? no you have to assume that you will migrate digital files to media capable of being read reliably until the next generation of mass storage arrives. all of the other protections (redundancy, error correction, etc.) need to be in place as well to protect against migration of data that has already been corrupted. the good news is that transfer rates and bit density increase with time, so old data is easier to migrate the bad news is the amount of data to migrate is increasing exponentially

17 years, 8 months

New DEC museum entry :D (not the breaker sub-thread)

by roger.holmes＠microspot.co.uk

> Tony Duell wrote: >> Does the word 'wonmdering' have any meaning to oyu? > None to me. > Nor for me. Does the word milliard mean anything to you?

17 years, 8 months

'woz' IIGS approx value?

by witchy＠binarydinosaurs.co.uk

Hi folks, Had a mail from someone wanting to know how much her 'Woz' GS is worth and does anyone want it? It apparently 'has everything' so I've asked her to define what that means, as 'everything' for the GS is quite a pile :) $50 - $150? -- Adrian/Witchy Binary Dinosaurs creator/curator Www.binarydinosaurs.co.uk - the UK's biggest private home computer collection?

17 years, 8 months

Fwd: [comp.sys.dec] Selling my VAX, Alpha, PDP-11 and other s

by legalize＠xmission.com

This message has been forwarded from Usenet. To reply to the original author, use the email address from the forwarded message. Date: Mon, 26 Feb 2007 07:55:52 +0900 Groups: comp.sys.dec,alt.sys.pdp11 From: Tim Sneddon <tesneddon at bigpond.com> Subject: Selling my VAX, Alpha, PDP-11 and other spares (was Re: Selling my PDP-11/83 and various spares...) Re: <45d4fdf3$0$16270$88260bb3 at free.teranews.com> Id: <45e20788$0$16343$88260bb3 at free.teranews.com> ======== All, Most of my PDP-11 stuff has been sold. However, I do have a collection of Q-BUS VAX spares, some Alpha bits, SCSI stuff. some more PDP-11 stuff I didn't even no I had, a few manuals and some other bits and pieces. I won't be listing any of this stuff past this coming weekend as I will no longer have any storage and all this stuff will be going in the bin. I will be listing quite a lot of the items mentioned above over the next two days. http://search.ebay.com.au/_W0QQsassZtesneddonQQhtZ-1 Regards, Tim. PS. Once again, apologies for cross posting. -- Posted via a free Usenet account from http://www.teranews.com

17 years, 8 months

New "D" drive -- WD Caviar

by dm561＠torfree.net

------------Original Messages: Date: Sun, 25 Feb 2007 17:02:01 -0800 From: "Chuck Guzis" <cclist at sydex.com> Subject: Re: New "D" drive -- WD Caviar To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Message-ID: <45E1C109.17821.6AF8FBA at cclist.sydex.com> Content-Type: text/plain; charset=US-ASCII On 25 Feb 2007 at 16:05, Hollandia at ccountry.net wrote: > The new drive has jumper settings for SLAVE, NASTER and SINGLE, but so far > as I can tell, none for "cable select." The drive is a 6-pin jumper block drive. For CS, jumper pins 1&2 of J8; leave other jumpers off. > 1) How do I set this new drive for "cable select"? > 2) Will wrong BIOS settings caues the drive's existence to not be recognized? Not usually--the drive should at least be able to identify itself to the BIOS. Cheers, Chuck -----------------Reply: 1) Actually, according to WD it's a 10-pin drive, but CS is still pins 1&2. However, I doubt that an old 486 would recognize CS, even with an 80-conductor cable; the existing one probably works because it's treated as a master with a 40-conductor cable. My suggestions: If there is a second (unused) IDE port, set the second drive as single master (no jumpers or 4&6) and plug it into the second port. If not, change the existing drive to dual master (pins 5&6) and set the second drive to dual slave (3&4). 2) Unlikely, but possibly, especially since AFAIK that BIOS does not have an auto-detect option; in any case, if the BIOS is set incorrectly you will almost certainly have trouble when you start using that drive. mike

17 years, 8 months

HP battery eliminator connectors - found

by jwest＠classiccmp.org

I've brought this up on the list a couple times, and the concensus among fellow HP'ers was always "these connectors aren't around anymore". Some are happy to just push a resistor into the 21MX battery connector, but I have one of the HP connectors built specifically as a battery eliminator plug and I wanted more. The resistors can fall out if just pushed in or not make good contact. After working with someone at AMP (Tyco), the following information is available: These are the old AMP "MR" (miniature rectangle) connectors. Here's the parts for a HP 21MX battery eliminator plug, with AMP part numbers & mouser prices: Pin housing (cap) 1-640511-0 $0.82 Strain relief (shell) 350522-1 $1.24 Live split pin contact (tin, 26-18 awg) 640545-1 $0.17 (need 2) or Live split pin contact (tin, 26-24 awg) 640579-1 (need 2) or Live split pin contact (gold, 26-18 awg) 640545-2 $0.40 (need 2) or Live split pin contact (gold, 26-24 awg) 640579-2 (need 2) These are all current production parts and still available new. The only mismatch - the HP plugs were black and these are red :) If I build up a bunch of battery eliminator plugs, I wonder if I can get $20 each on ebay ;) Hope this helps folks! Jay West

17 years, 8 months

New "D" drive -- WD Caviar

by Alwrcker82＠wmconnect.com

Kurt, in most cases Device 0 is C drive and Device 1 is drive D, it can't hurt to try. Al DePermentier

17 years, 8 months

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test-drb February 2007