test-drb July 2005

test-drb@ccmp.vtda.org

257 participants
628 discussions

by pete＠dunnington.u-net.com

On Jul 26 2005, 14:42, Jules Richardson wrote: > I'm not sure how complex such a box would be. I *think* an ST506- > interface drive looks pretty much like a big floppy, just with more > heads. Far as I know, it doesn't do anything intelligent on the drive > itself, just responds to head select / step commands from the controller > and reads or writes data. Yes, except normally the step pulses are buffered, so you can send them fast and the drive will handle them at the correct rate. At least, all but the oldest drives do that. That's the main difference between ST506 (not buffered) and ST412 interfaces. > The bit I don't know is the nature of the data signal at the interface - > it uses +/- signal lines for both read and write data. I'm not sure if > that's an analogue signal or a digital one. Digital. > I don't think there's a need to handle anything complex in the virtual > drive. I believe an ST506 drive's purely a data store/replay device and > it knows nothing of the actual data stored on it - most of the circuirty > on board is presumably just motor control and head amplifiers / filters. Correct. -- Pete Peter Turnbull Network Manager University of York

21 years

HP85 simulator

by GOOI＠oce.nl

<snip> > I asked the author (Olivier De Smet) about his project. His reply: > - Yes I hope to continue to develop it this summer > - I hope to be able to use an HPIB pcmcia card to connect directly > HPIB devices, I don't have an ISA HPIB card). *IIRC*, I have an ISA adapter card with an IEEE-488 (?) female connector at the plate. I can check this monday. I am donating the card for the good cause ... if Olivier lives in The Netherlands. Otherwise, it would be nice to get shipping costs refunded. - Henk, PA8PDP.

21 years

HP85 simulator

by aek＠bitsavers.org

I got bogged down in my other emulators, web sites, and real life, and somebody beat me to the punch (oddly, it isn't easy to find -- you'd think one of the hp 8x sites would promote it. -- ugh.. windows only and no sources. anyone know anything about this (mentioned in the readme) Thanks: ------- Christoph Gie?elink for Emu42 sources (used to start this emulator)

21 years

HP 9825 computer/calculator manuals & Re: HPL manual request

by rigdonj＠cfl.rr.com

Oops! I forgot to add that HP refers the HPL users to the HP 9825 Calculator manual for more details on HPL. There's an auction of E-bay right now for a set of HP 9825 manuals. That's what reminded me about the referral. <ttp://cgi.ebay.com/HP-9825-computer-calculator-manuals_W0QQitemZ6788289667Q QcategoryZ16210QQrdZ1QQcmdZViewItem> Joe At 09:58 AM 7/27/05 -0400, you wrote: > > > > >I was able to find HPL Operating Manual and Programming Update >(09826-90040) on bitsavers website. I have HPL Operating Manual >(98614-90010). Does anyone know if HPL Condensed Reference (98614-90020) >is archived anywhere? Is there any other references available for HPL 2.1? > >Hutch I just finished packing a BUNCH of HP manuals and shipping them to Al to be scanned and archived. In the pile are several HPL manuals, a manual for BTL (Board Test Language, a variation of HPL that was used on the 3060 circuit card test station) and a photocopy of the HPL Condensed Reference Manual. Joe

21 years

E-bay sillyness! Ultratech HP Computer 9826A starting at $2000!

by rigdonj＠cfl.rr.com

<http://cgi.ebay.com/Ultratech-HP-Computer-9826A_W0QQitemZ7534733773QQcatego ryZ45044QQrdZ1QQcmdZViewItem> Starting at about 100 what's it's worth! AND no pictures and no description! How much do you want to bet that this seller's feedback never progresses above what it is now (ZERO)? Joe

21 years

HP 9115 computer on E-bay

by rigdonj＠cfl.rr.com

Located in Melbourne Australia <http://cgi.ebay.com/HP-9915A-computer_W0QQitemZ7533933115QQcategoryZ1504QQr dZ1QQcmdZViewItem> Joe

21 years

Kodak Displaymaker "video graphics system"

by dubmatrix＠chello.nl

Hello Pat, I was wondering if you had any luck yet in finding software for this system. I've bought this system without software today and I'm stuck with the same problem. GreetZzz Romano

21 years

PET Cassette software

by pete＠bartusek.com

I'm still keeping an eye out for Commodore Pet software on cassette...if you have anything, can you let me know? I'd really like to revive this machine! Thanks, Pete

21 years

For pickup only in Austin, TX, USA, Earth -- HP-85, HP-86B, docs, peripherals

by frustum＠pacbell.net

Attention classiccmp-ers near Austin, Texas: I am running out of room, so it is time to triage. Over the years I had assembled nice HP-85, HP-85, and HP-87XM systems, along with docs, accessories, software, etc, with the intention to one day write an emulator for this family. Well, I got bogged down in my other emulators, web sites, and real life, and somebody beat me to the punch (oddly, it isn't easy to find -- you'd think one of the hp 8x sites would promote it. it is here: http://www2.akso.de/files/series_80/Emulator/Series_80_Emu_Win.zip). I'm keeping the 87 since it is the most capable. The 85 and 86B must go. These are for pick up only in SW Austin -- if I wanted to pack them well enough for shipment and slog them over to fedex, I'd instead sell them on ebay. I am also unwilling to hold on to these for a long time (say, more than a month). No cherry picking either -- take it all and throw out the stuff you don't want whem I'm not looking. Sorry for being inflexible. System #1 -- HP-85 ------------------ 00085-15004 matrix rom 00085-15002 plotter rom 00085-15001 mass storage rom 00085-15003 input/output rom 82903A 16K memory module 82937A HPIB interface spare printer drive belt (I don't think it is needed) the built in printer works, but there is uneven printing (might be print head, might be paper) three rolls of thermal paper in apparently great shape HP-85 financial decisions pack tape five used DC-100 tapes three shrinkwrapped DC-100 tapes a box containing three pounds of unused DC-100 tapes xerox copy of the hp 85 field service manual 82939A opt 002 serial interface (in box) standard pac software manual (no software) HP-85 owner's manual and programming guide matrix rom manual i/o programming guide System #2 -- HP-86B ------------------- built-in 128 KB RAM built-in HPIB interface external HP 82913A 12" B&W monitor HP dust covers for the computer and monitor 82939A serial interface monitor instructions HP 85 owner's manual and programming guide HP 85 i/o programming guide File/80 owner's manual Word/80 owner's manual, software serial interface owner's manual visicalc plus manual and three 5.25" floppy disks Lock Software Market 86.1 technical analysis owner's manual perhaps others If more than one person is interested, I'll pick one based on an unspecified weighting of response time, how easy they make it on me, and interest. Thanks.

21 years

Major SX-64 acquisition (and some other stuff)

by chenmel＠earthlink.net

Today at work what I was really hoping to happen did happen. I was given three working Commodore SX-64 machines. We are in the process of consolidating to fit the lab into a smaller space and they're throwing away tons of stuff. There is a fourth SX-64 still in occasional use, and I was able to get these machines by promising that if the one at work fails I will bring in one of these to use in it's place. So I have all three machines, but they're essentially 'non-transferrable' until we come up with a replacement for the one on a fixture. Which will probably happen eventually (and then I'll probably get a fourth SX-64.) I also got a whole pile of mid-years DOS clone machines and misc. The three most interesting machines are 1. An 'Expansion Box' chassis, i.e. a passive backplane with a card in it and a card with a wide cable on it, meant to plug into another chassis that has the CPU. and 2. An old Wyse 386 machine that has a fairly curious construction. The CPU is on a card plugged into a 'passive' backplane, and the Hard Drive controller plugs in planar to the backplane. The HD controller appears to be a fairly standard 'AT' type controller. This machine also has no 'standard' PC-type keyboard connector. There's a snap in connector similar to a telephone connector, and on the same bracket area, a 9 pin connector. There's a VGA ISA card plugged into the system, but is it possible the machine would work with a serial console? The 'CPU' cards plugged into the backplane are complex, with a bridge connecting two of them on the opposite side, parallel to the backplane connectors. 3. (probably least interesting) An ALR 386 system. The big classic 'full AT' case and motherboard. The CPU is a 386DX-16 and it also has the '387 coprocessor. Anyhow, I consider it all a fairly good 'score' though the SX-64's greatly eclipse all the PeeCee boxes.

21 years

← Newer
1
...
4
5
6
7
8
9
10
...
63
Older →

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb July 2005