test-drb January 1999

test-drb@ccmp.vtda.org

189 participants
897 discussions

Reiability of wrong media (was: is out of 5-1/4" diskettes

by manney＠hmcltd.net

My heathkit H-89, which used SSHS mounted vertically, had a note in the manual that using "flippy" diskettes was not recommended, as dirt and suchlike (which collects on the liner during normal operation) was likely to fall out if the disk were flipped, and thus run backwards. S'pose that was so they could sell you more disks, or was there some truth to that? I can think of very few home units which had vertically mounted drives... Trash-80's are all that come to mind. P Manney >"Flippy": The second side can often be used in a single sided drive by >flipping the disk over. In the case of Apple ][ and Commodore, it >requires punching a write enable notch. (Which does NOT need to be square.) >On TRS-80, IBM, etc, it is necessary to also punch an additional >(symmetric) access hole for the index hole. (jigs for marking and >punching used to be available.)

25 years, 11 months

eBay Finds (was: Ebay Posts was...)

by sinasohn＠ricochet.net

At 10:01 AM 1/21/99 -0800, you wrote: >One thing I find interesting is that I rarely find anyone talking about >their finds on ebay; why not? okay, I was waiting until I was able to do more research, but... For $5 and shipping, I got (on eBay!) a Sharp PC-5000 laptop. No biggie you think? Well, for starters, from what I can tell, it beats the Gavilan out for second place in the Clamshell laptop race (GRiD Compass was first). On top of that, it beats the Gavilan for: removeable program/data cartridges (uses Bubble Memory carts) clamshell with a built-in portable printer, and something else I forget at the moment. It's pretty cool, and a lot cheaper than some of the commoner stuff I've gotten. Other eBay scores: V-Marc 88a portable computer, NEC PC-8201 (not the 8201A), I'm sure there are more, but I have to go pick up my dad. eBay can be useful, but it's takes time to look for old computers. Try doing a search on "Donald Duck" (with the quotes) -- that's a piece of cake. Look for computer and you get a lot of junk. Look for "vintage" and you miss a lot. --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/

25 years, 11 months

Informer(terminal) modem problem

by cswiger＠wilma.widomaker.com

>unattended outside my house! Anyway, yes I've a >second line and what happens is that it does ring >but when I answer it (feeling rather besides myself) >there is dead air. What I'm dialing, other than myself, is a If you really want to feel funny, sometimes you can whistle into the phone, experiment with the pitch and trick the calling modem enough to get *IT* to start squealing. Of course, the ultimate test would be to set up a modem to answer on your 2nd line and troubleshoot from there. Chuck cswiger(a)widomaker.com

25 years, 11 months

[OT] Re: IE 4/Office 97 Security Hole

by kurtkilg＠geocities.com

On Wed, 20 Jan 1999, Tony Duell wrote: > Current machines aren't like that at all. So I am wondering if there will > be any '10 year old' machines in 2009 or whenever. I bet some of us are > still discussing PDP11s and PDP8s and PERQs and CDCs and.... in that year :-) If someone has an honest question about a 10-year-old computer, by all means, let them ask. But, there isn't too much traffic on this list about PC hardware, and that's not going to grow as the PC market share declines (it can hardly increase). And the thing is, as you say, little can be done for PC hardware. If it's dead, it's dead. > Personally, I'd include the IBM PC (5150) and maybe the XT (5160), > portable (5155) and AT (5170). Like it or not, they had a significant > impact on computing. But I don't think I'll ever think of a generic > PC-clone, no matter how old, as a 'classic'. 'Classic' carries some connotation of class or of being nostalgic, etc. Hardly any PC clones do that. Also, a generic ISA machine is hardly a collectible item, so, again, I doubt they will generate much traffic as time goes on.

25 years, 11 months

Reiability of wrong media (was: is out of 5-1/4" diskettes

by SUPRDAVE＠aol.com

In a message dated 1/22/99 9:19:59 AM Pacific Standard Time, george(a)racsys.rt.rain.com writes: << Made sense to me... In my meager days (while going to school) I turned over and used Apple ][ floppy's. I wouldn't say they didn't hold up but I did have enough disk errors on diskettes I did this with to decide to quit the practice. And yes I do wish I had not ever done this. >> i made many disks flippies so i didnt have to carry so many around and never had a disk failure. Of course, i always bought double sided disks instead of single side disks since supposedly both sides were certified error free rather than just one side. david

25 years, 11 months

Bulbs in parallel

by sinasohn＠ricochet.net

At 12:57 AM 1/13/99 -0600, you wrote: >>Gag? Mechanical computers are serious stuff, Hans. Like Danny Hillis' >>tinker-toy tic-tic-toe machine: >There was another one, but I can't seem to find the page now. Found it... Dunno if it still exists (can't access the web at the moment) but here's the URL: http://legowww.homepages.com/projects/adding/project2.html --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/

25 years, 11 months

FA: Panasonic 200U. Be the first on your block!

by manney＠hmcltd.net

Panasonic 200U with 32K memory, Instruction book, box (pretty beat up). Nothing happens on the screen when it's turned on, and beeps each time a key is pressed. The unit is on fine shape (cosmetically), though. It;s a flat CoCo-looking thing, with rubber chicklet keys. I can send a pic to anyone interested. Following the current practice, I guess I'll ask $8,500 on eBay, but I thought I'd offer it for a discount (say, $8,499.95) to the group. Anyone interested for the price of shipping and a few bucks? manney(a)hmcltd.net (please note address change)

25 years, 11 months

Berman prices

by Philip.Belben＠pgen.com

> I don't know if it's on topic but I got back my bid report from Berman and > some folks have asked me to record the prices so here they are: (Berman == > www.berman.com) > > A pallet of four NeXT cubes w/Monitors and drives $325 > A pallet of Tektronix plugins $297 > An SGI Crimson Server $210 > A Sun 4/330 (Dual CPU) Server $60 > A set of three SparcStation IIs $501 > A complete Mac IIci (printer, monitor the works) $70 Any Idea what the Tek plugins were and how many? Philip.

25 years, 11 months

OT: Need info on a PCI board

by mbg＠world.std.com

Yes, I know, this is way off-topic, but the board I recently obtained is unique... I was hoping someone on this list might be able to give me an off-line pointer to info... I obtained a PCI board produced by Evans and Sutherland which is labelled 'RealImage 1000' and appears to be VGA compatible. In an Alpha 600au, it identifies as Eclipse 4D30T... it has an angled slot for a DIMM module, and I know the board comes in 20 Mb and 32 Mb configurations. I apparently supports (or is supported by) OpenGL... I'd like to get as much bits 'n bytes (tm) level programming info on this board, as well as information on what sort of DIMM I need. The 32 Mb Dimm I have doesn't look anything like the one I see in a picture of the board, so maybe some of the 32 Mb is already on-board. Anyway, anyone with any information on this board, please contact me, I'd like to see if I can get it running on my Linux box. Thanks in advance... Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

25 years, 11 months

Free PRIME 2455 (UK)

by PeksaDO＠cardiff.ac.uk

Prime 2455 - free to good home - collect from Cardiff Introduced 1987, 1.2 Mips. Cabinet, CPU, 8Mb memory, SCSI controller, internal cables, PSU No disk drive; no tape drive; PSU does not work - PSU fault light remains on - it broke when I turned my washing machine on! A few hardware and software documents Approx dimensions 75H x 30W x 77D cm. Feels more than 50kg or maybe I'm just getting old. I'm more into DEC so havn't the time or space for this one. If nobody wants it, its off to the recycling depot. Doug.

25 years, 11 months

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test-drb January 1999