test-drb January 2005

test-drb@ccmp.vtda.org

254 participants
551 discussions

Importing binary files without removable storage nor non-bundled software (was: TKermitFTP

by pete＠dunnington.u-net.com

On Jan 5 2005, 14:27, Fred Cisin wrote: > > > In the case of DOS 6.22, the message "Cannot do binary reads from a > > > device" is at offset 970F in COMMAND.COM > On Tue, 4 Jan 2005, Tom Jennings wrote: > > Sheesh, it only took them 10 years to declare it impossible and > > test for the error. > > Well, ... > in DOS 4.00, it is at offset 7CCC. It may have been there since QDOS? Dunno, I don't have quite such old versions :-) My old copy of "The MS-DOS Bible" says "every version" -- it means 3.30 and older -- disallows binary reads from devices. The same message is at 5254 in MS-DOS 3.30 (ditto in PC-DOS 3.30), at 4CA0 in 3.21, and 4CCC in IBM-DOS 4.01 (from a Compaq). I can't read my MS-DOS 2.10 and 2.11 disks on the hardware I have here. "Binary reads from a device are not allowed" is the message at 8753 in DR-DOS 3.41. All the ones that I could boot (ie all but 2.10/2.11) print the message and then exit when you try COPY /B CON: dummy . -- Pete Peter Turnbull Network Manager University of York

21 years

AIM65 with unknown second board

by websupport＠degnanco.com

Jules, Update to my previous reply: The board found on http://www.moosenet. demon.co.uk/temp/comps/aim65/board_front.jpg could be a Memory-Mate board. >From Electronic Design magazine November 1981: "..these fit underneith the AIM-65 to privide 16 to 48 kbytes of RAM expansion, four programable I/O ports, timers and counters, and PROM sockets. The board interfaces with the Rockwell computer's expansion connector. Another card, called the STD-Mate, connects to the Memory-Mate to link the system with an STD-bus motherboard and card cage, thus permitting STD-bus systems to be developed using the examine, alter, simple step, trace, breakpoint, and other features of the AIM-65." Bill Degnan Wilmington, Delaware vintagecomputer.net

21 years

uPD7210 datasheet

by pete＠dunnington.u-net.com

On Jan 11 2005, 10:49, Philip Pemberton wrote: > Nope - the 7210 was NEC's IEEE-488/HPIB/GPIB controller chip. I've got a CEC > PCI-488 GPIB card that uses it and the "Advanced Programming" section of the > manual makes a lot of references to the 7210 datasheet... NEC discontinued the 7210 a while ago, but a company called ComputerBoards makes a drop-in replacement. It has some extensions, so not everything described in the datasheet would work on a real uPD7210, but it might help. They have a 14-page data sheet on their website: http://www.7210.com/frames.html -- Pete Peter Turnbull Network Manager University of York

21 years

ISA-based SCSI card

by RMeenaks＠OLF.COM

with all the talk about ISA-based SCSI cards, here is 8-bit XT ISA SCSI card on epay: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=167&item=5120034528&r d=1&ssPageName=WD1V Cheers, Ram (c) 2005 OpenLink Financial Copyright in this message and any attachments remains with us. It is confidential and may be legally privileged. If this message is not intended for you it must not be read, copied or used by you or disclosed to anyone else. Please advise the sender immediately if you have received this message in error. Although this message and any attachments are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no responsibility is accepted by Open Link Financial, Inc. for any loss or damage in any way arising from its use.

21 years

AIM65 with unknown second board

by websupport＠degnanco.com

Jules, Most often expansion boards that came from Rockwell are 6 1/4" x 4" and fit into the Rockwell AIM expansion chassis. I bet this is a custom (?) XEROX prom monitor card adapted for the AIM 65. The card would not fit in the Rockwell expansion chassis. I have a lot of Rockwell hardware and documentation. If you send me the part # of the board I can look it up to confirm. Bill >Message: 22 >Date: Mon, 10 Jan 2005 13:16:45 +0000 >From: Jules Richardson <julesrichardsonuk(a)yahoo.co.uk> >Subject: AIM65 with unknown second board >To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk(a)classiccmp.org> >Message-ID: <1105363005.13406.26.camel(a)weka.localdomain> >Content-Type: text/plain > >Afternoon... > >We were given an AIM65 the other day (first time I've seen a real one) >in a rather fetching custom blue case that has a carry handle on one >edge. It was apparently used by Xerox for some for of magnetic media >testing way back when; it still carries a Xerox asset tag on the back. > >Unfortunately in between the previous owner saying they wanted it when >it was retired and them going to collect it, it got thrown into a skip - >so there's some damage to the case and the red display cover needs >replacing. Luckily the electronics survived, apart from one broken >switch. > >Curious thing about the machine is that it has a second board mounted >under the main board, containing quite a bit of circuitry. I was >wondering whether this second board is something custom produced by >Xerox (there are no marks indicating manufacturer) or whether it was an >official off-the-shelf expansion board... > >Quick and dirty pics at: > >http://www.moosenet.demon.co.uk/temp/comps/aim65/ > >Wish I'd brought the machine home now, but I can get a list of the main >ICs on that second board when I'm next at the musuem if needs be. > >Note that there seems to be no RAM on the AIM65 board itself, - just ROM >- but there are 16 4116 chips on the expansion board. >

21 years

geek OS

by vp＠cs.drexel.edu

"Zane H. Healy" <healyzh(a)aracnet.com> wrote: > Sorry, I want to run either MWM (talk about sick and twisted), [...] Wow, I thought I was the only one running mwm! I have one of the original source distributions and have been carrying it with me all these years. Now it is running on a dual screen machine under OpenBSD 3.4. Although it was considered slow and bloated when it came out (14+ years ago), nowadays the same code is considered fast and slim (times change). BTW this is what I really really really like about source distributions, you do not depend on the vendor to port the software. **vp

21 years

Lots of S-100 card docs avail/wanted

by dave04a＠dunfield.com

>> Took in a big load of S-100 material this past weekend, including >> 5 complete systems (Altair 8800, Vector-1+, 3 homebuilts), and a >> total of 76 S-100 cards, with about 40 different types. > >Holy crap! Nice haul! Thanks - it was a big load - took me about two hours to pack *most* of it into my Jeep Cherokee (with the rear seat folded down) - ended up leaving a few bits and pieces to pickup later this summer (was located about 700km >from me). It was one of those "everything went right" experiences - The Altair is *mint* - not a mark on the panel or any worn lettering ... My initial disappointment because it didn't have the silver nameplate (my other one doesn't either) was quickly put aside when he hauled out the nameplate, still with it's "pink" protective covering on it. In addition to the Mits cards listed, it came with the original Mits 4K BASIC and 8K BASIC cassettes, as well as all of the documentation - and a completely unexpected suprise was when I noticed the January 1975 Popular Electronics "Altair" issue laying on top of it (I've been looking for it for a very long time). A very nice piece, along with the Vector which is also in excellent condition. >> ** Two of the S-100 homebuilts are actually complete TRS-80's >> implemented on S-100 cards - they run the TRS-80 ROMs unmodified >> (with disk system) and load/run TRS-80 software! > >Holy crap II! That is fucking cool! Pictures!!! I thought so too - Very unique S-100 systems - I will be getting them up and running, and will let you know how they work out. They are mostly homebuilt cards (except for memory). >I want pictures of those homebrew TRS-80 S-100 systems. That has to be >the coolest S-100 system ever (next to the Atari S-100 stuff I've got ;) I had hoped to update my site within the next week or two, however I expect it will get pushed off a little now, as some of the new material is worthy of waiting for - but the update will include photos of the two "TRS-80" S-100 systems - I'll post a note when I have made the update. Do you have photos of the Atari S-100 material posted? Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

21 years

WTD: uPD7210 datasheet

by philpem＠dsl.pipex.com

Hi, Does anyone have a complete copy of the NEC uPD7210 datasheet? I've just spent the past hour Google-ing for it and all I've found is a pair of "We'll give you this d/s if you pay $500" type sites, and a bunch of copies of the first page or so of the datasheet. Thanks. -- Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB, philpem(a)philpem.me.uk | ViewFinder, 10BaseT Ethernet, 2-slice, http://www.philpem.me.uk/ | 48xCD, ARCINv6c IDE, SCSI Warning: Windows is broken. Watch out for glass fragments.

21 years

Importing binary files without removable storage nor non-bundled software (was: TKermitFTP

by dwight.elvey＠amd.com

Hi I use windows for tax programs and digital photos. Beyond that, I have no use for it. If these were available in some other form, I'd use that instead. Dwight >From: gordonjcp(a)gjcp.net > > >> My usual machine for internet access just croaked (bad checksum in >> NTVDM.EXE), so, I'm using a Chembook notebook that has several > >I'm *amazed* how many people on this list still struggle on with Windows. >I would have thought most people with the geeky proclivities that would >lead them into playing with old computers would all be running one of the >many free OSes. > >Gordon. > >

21 years

RTL Logic

by dwight.elvey＠amd.com

Hi 4000 series is good to around 15 volts someplace as I recall. I don't remember how low it goes but it seems like 2.5v someplace. It does run slower at lower voltages and even at 5 volts, it is really slow for logic. It really depends on the application. Dwight >From: "Scott Stevens" <chenmel(a)earthlink.net> ---snip--- > >Doesn't 4000-series CMOS logic operate pretty well at non-5 volt levels >if powered to such levels? I haven't used any in years, but all the >'building block' logic components are available, i.e. the 4049 and such. > A company I worked for made a muscle stim device out of a single 4000 >series 'hex converter' using feedback to make multivibrators, crude >comparators, drivers, etc. out of the gates. It wasn't powered at 5 >volts, the whole thing ran from a 9 volt battery. The logic thresholds >for 4000 CMOS are 1/3 and 2/3 of VCC, for whatever VCC you supply, if I >recall. > >

21 years

← Newer
1
...
38
39
40
41
42
43
44
...
56
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 January 2005