test-drb December 2006

test-drb@ccmp.vtda.org

225 participants
420 discussions

by Reber48035＠aol.com

Hi, I'm finding inconsistencies between the HP-67 & HP-97. I'm looking for an HP-97 Manual and saw a note from Joe that stated Mike Haas found one. Is it for sale? Gregg

18 years, 4 months

Network question

by cclist＠sydex.com

I'm beginning to wonder if it's time I upgraded my home network. The NICs on most of the machines are 100BaseT, with the odd old machine sporting a 10BaseT. But it's the hubs I wonder about--two old National Semi 6-port Datamover 10BaseT units coupled together with a 10Base2 (coax) link. It's that coax that I dread replacing--it goes between floors and snaking it through the walls was a real chore. My DSL speed is 1.6Mbps, so I'm thinking that there's little reason to upgrade the setup. Am I thinking correctly or am I likely to see an improvement in internet access speed if I upgrade? Cheers, Chuck

18 years, 4 months

high school and timesharing

by charlesmorris＠hughes.net

"Rick Bensene" <rickb at bensene.com> wrote: >We had quite a bit of fun writing little programs which would wait for a >specific time (during other people's classes), and then "crash" the >system at that time. Eventually, we got caught. This reminds me of an interesting phenomenon we discovered in 1974... the high school had an ASR-33 connected via a leased data line (telephone with acoustic coupler) to a PDP-8/E running TSS/8 at Clemson University, 60 miles away. I can't remember exactly what the code was any more, but it was a very simple patch -we would deposit a mere three words at location 307 (octal) and execute it (ST 307), and the terminal would log on another job. So you'd have two accounts open simultaneously on the same TTY! And if you logged off one account the other would still be open so you couldn't log off both... they'd have to reboot the system to kill it. Any TSS/8 gurus know how we might have done this? We also "inadvertently" deleted the contents of one of the library DECtapes once... there was a "ZAP" command that zeroed out the tape, so naturally we would type in "R ZAP" frequently, and get the expected "WRITE LOCKED" error. One day, though, it actually did it =:^0 Guess the operator forgot to flip the write lock switch! -Charles

18 years, 4 months

Apple IIe Motherboard X-Ray

by compoobah＠valleyimplants.com

> And with so much radiation being shot onto metals and like, does it > became radioactive? > > I have some MSX here that I want to "give it a shot" (pun intended) > hehehe > Remeber- two types of radiation: particle (Alpha, Beta, neutrons, protons) and electromagnetic (gamma, X-ray, radio, light, etc). The particles can make things radioactive, the electromagnetic radiation cannot.

18 years, 4 months

SCSI CD cabinets

by tpeters＠mixcom.com

Oh my, what am I going to do with these MDI SCSI CD boxes? I have 3 or 4 of them, each one containing seven CD-ROM drives, a power supply, and some kind of logical unit controller, so all 7 drives appear a LUNs under one SCSI address. The drives are Toshiba XM-5301B, a 4x tray-type (doesn't need caddies) that works sideways or in the more usual orientation. Specs here, from http://www.netcomdirect.com/tosxm4xfonco.html CD-ROM Mode 1 -data discs CD-ROM Mode 2 - data discs CD-DA audio discs CD-DA/ROM - Mixed mode/combined CD-ROM XA and Photo CD (Single and Multisession) CD-Bridge (White book, Video CD) CD-I, CD-I ready The cabinets are 17" but with ears for std rack mount, 7 inches high, depth behind the rack 20 inches. Anyone (local) want some? Anyone got any ideas what to DO with them? -Tom [Love] Once he drew With one long kiss my whole soul thro' My lips, as sunlight drinketh dew. --Alfred Tennyson (1809-1892) Fatima --... ...-- -.. . -. ----. --.- --.- -... tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio) "HEY YOU" (loud shouting) WEB ADDRESS http//www.mixweb.com/tpeters 43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square EN53wc WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531

18 years, 4 months

Cray-I PCB for display at Goodwill

by cclist＠sydex.com

Sometimes Goodwill has interesting stuff. Here's one you don't see every day: http://shopgoodwill.com/viewItem.asp?ItemID=2423761 Cheers, Chuck

18 years, 4 months

HP-3000 (was: HP HP-2117F on ebay)

by Lee.Courtney＠windriver.com

3000 Series 40, and early 1980s Micro3000XL. Lee C. > -----Original Message----- > From: cctalk-bounces at classiccmp.org > [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Richard > Sent: Thursday, December 14, 2006 10:08 AM > To: General Discussion: On-Topic and Off-Topic Posts > Subject: HP-3000 (was: HP HP-2117F on ebay) > > > Speaking of old HP minis, does anyone have an HP-3000 in > their collection? Not the newer ones, but the ones from the > mid to late 70s. > -- > "The Direct3D Graphics Pipeline" -- DirectX 9 draft available > for download > <http://www.xmission.com/~legalize/book/download/index.html> > > Legalize Adulthood! <http://blogs.xmission.com/legalize/> >

18 years, 4 months

Exatron Stringy Floppy's (was Re: SCSI CD cabinets)

by aliensrcooluk＠yahoo.co.uk

--- aliensrcooluk at yahoo.co.uk wrote: > **>> snip <<** > > Yes, you are quite right Chuck. > > The ESF (Exatron Stringy Floppy) drive, > advertised on the back of most of my issues > of 80 Microcomputing, didn't last long despite > the heavy advertising. > > As I understand it, the folks at Exatron hoped > it would become the new standard for storing > data. Unfortunately the 3.5" floppy disk (or > one of similar size) was invented around the > same time and, obviously, became the new > standard. > The ESF was about x10 faster than a cassette > and the floppy was much more than that > (atleast x20?). > > As I understand it the ESF's broke down after > a year or so. The thin layer of stuff (i forget > now, some ferrous material) which was coated > onto the erm... mylar (?) started flaking off > rendering the ESF's useless. > > > I'm sure I read an article on ESF's about 6 > months ago... hense why I know a bit about > them. It may have been in an issue of 80 > Microcomputing. > > > Regards, > Andrew D. Burton > aliensrcooluk at yahoo.co.uk > > Yes, I'm replying to my own message! I did a quick search on google and came up with 300 links (searching for "Exatron Stringy Floppy"). Unfortunately, I was unable to confirm what the ESF's were made of. The sources also state different increase read/write rates over cassette drives. Here are some of the better links (including pics of the unit and ESF): http://www.webweavers.co.nz/system-80/hardware_acces sories.htm http://www.digibarn.com/collections/devices/stringy- floppy/index.html http://en.wikipedia.org/wiki/Stringy_Floppy Regards, Andrew D. Burton aliensrcooluk at yahoo.co.uk

18 years, 4 months

Network question

by chrism3667＠yahoo.com

Bongos? Babaloonet? LOL LOL LOL --- cctalk-bounces at classiccmp.org <mbbrutman-cctalk at brutman.com> wrote: > Zane H. Healy wrote: > >> Even with 5Mbps cable modem, my slowest connection inside is still > >> faster that my connection to the outside world. > > > > You obviously don't have any really old systems on your network. I'm > > still at 1.5Mbps, and have systems on my network that can't keep up with > > that. > > > > Zane > > > > > The context was the networking gear, not the machines. I think my PCjr > is fairly slow. > > In the case of a really old system like that, it doesn't matter what the > network is - the network will never be the problem, unless I use bongos > as the transport mechanism. > > > Mike > > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

18 years, 4 months

Exatron Stringy Floppy's (was Re: SCSI CD cabinets)

by aliensrcooluk＠yahoo.co.uk

--- Chuck Guzis <cclist at sydex.com> wrote: **>> snip <<** > > You know, I've never had anyone ask about converti ng > one of the Brier > flopticals (I've got the drive) or the Drivetech > floppies, much less > an Amlyn or Exatron stringly floppy. I can only > conjecture that the > media didn't last very long. > **>> snip <<** > Cheers, > Chuck > Yes, you are quite right Chuck. The ESF (Exatron Stringy Floppy) drive, advertised on the back of most of my issues of 80 Microcomputing, didn't last long despite the heavy advertising. As I understand it, the folks at Exatron hoped it would become the new standard for storing data. Unfortunately the 3.5" floppy disk (or one of similar size) was invented around the same time and, obviously, became the new standard. The ESF was about x10 faster than a cassette and the floppy was much more than that (atleast x20?). As I understand it the ESF's broke down after a year or so. The thin layer of stuff (i forget now, some ferrous material) which was coated onto the erm... mylar (?) started flaking off rendering the ESF's useless. I'm sure I read an article on ESF's about 6 months ago... hense why I know a bit about them. It may have been in an issue of 80 Microcomputing. Regards, Andrew D. Burton aliensrcooluk at yahoo.co.uk

18 years, 4 months

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test-drb December 2006