Re: idea for a universal disk interface
> On Apr 13, 2022, at 11:51 AM, Tom Gardner via cctech > wrote: > > There are a few others like ANSI and CalComp but they are probably not worth > investigating. > They are if you’re someone who has a machine using one of these interfaces, or e.g. the 40-pin “IMI bus”, or whatever else. ok bear.
Re: Sun-2 and Sun-3 mice (eBay)
> On Oct 29, 2021, at 12:51 PM, Michael Thompson via cctech > wrote: > I have a black Mouse Systems mouse with a Sun sticker on the front. P/N > 900783-002/01. Maybe for a Sun-1? Sun-1 mouse has a DA15 connector. ok bear.
Sun-2 and Sun-3 mice (eBay)
https://www.ebay.com/sch/xi_jinping/m.html?item=334195034340=item4dcf9388e4%3Ag%3Ar%7EcAAOSwFVhhd12t=nc&_trksid=p2047675.l2562 Hadn't realized before that there were Sun-2 mice which weren't black (were white/beige). I know some folks are looking. No connection with the seller, apart from having bought one of them already. ok bear.
Re: Early '80s Motorola Semiconductor Reference - anyone?
> On Aug 7, 2021, at 7:24 PM, Chuck Guzis via cctech > wrote: > > On 8/7/21 5:50 PM, r.stricklin via cctech wrote: >> Anyone have an early ‘80s Motorola semiconductor reference manual? I am >> attempting to repair a Boschert power supply from ~1983 that is full of >> Motorola parts marked as 1027 (DO-42ish), 1077 (TO-3ish), 1078 (DO-5ish), >> etc. It would be extremely helpful to know their specifications, or ideally >> how to cross-ref them to “standard” parts. > > Those are Boschert "house numbers'. Unless you can find a Boschert > maintenance document that lists them and ther equivalents, it's going to > be a bit of a detective sleuth. Ugh… I hadn’t even thought of that. You’re confident of it? ok bear.
Early '80s Motorola Semiconductor Reference - anyone?
Anyone have an early ‘80s Motorola semiconductor reference manual? I am attempting to repair a Boschert power supply from ~1983 that is full of Motorola parts marked as 1027 (DO-42ish), 1077 (TO-3ish), 1078 (DO-5ish), etc. It would be extremely helpful to know their specifications, or ideally how to cross-ref them to “standard” parts. ok bear.
Re: Compaq Deskpro boards/hard drives from the late 1990s
> On Jul 21, 2021, at 2:42 PM, Jules Richardson via cctech > wrote: > > On 7/21/21 12:51 PM, r.stricklin via cctech wrote: >> CDC 94208-51, 62, -75. The -51 is Compaq drive type 17. > > Interesting! Were they built as IDE drives from the ground up, or were they > ST506/412 types with an additional board grafted on doing the interface > conversion? Compaq did a few that way (e.g. for the Portable II) but the CDCs are all ATA. ok bear.
Re: Compaq Deskpro boards/hard drives from the late 1990s
> Regarding your "IDE HDDs were extremely rare" comment, did *anyone* other > than Quantum release an IDE drive in that 5.25" form factor? I can't think of > any, everything else was 3.5", although some early vendor's drives were the > same height as a "half height" 5.25" drive. > CDC 94208-51, 62, -75. The -51 is Compaq drive type 17. ok bear.
Atari ST & MegaFile with Minix?
I was playing with ST Minix (v1.1, based on PC Minix v1.3). I didn’t have any luck with Minix (neither the boot program nor the kernel) detecting the MegaFile (60 or 30, both the same outcome) on the Mega 4. Both MegaFiles worked fine with Minix on the 1040ST. So there must be some difference (timing?) between the ST and Mega. There are some usenet posts speculating on the cause of this, as well as contradictory user reports on whether it is known to work or not. So I’m not sure what to make of this. But Minix is pretty tight in 1 MB RAM, so I would like to understand why it shouldn’t work on the Mega 4. Any Atari ST experts on the list who can shed any light on why this might be the case? ok bear.
Re: Early Programming Books
> On Jun 22, 2021, at 12:40 PM, ben via cctech wrote: > Lisp is evaluated, not compiled from what little I have read. > If I could read the papers (for free) I could know more. So… have I got this right? 1. You admit directly you have only a little knowledge on the topic. 2. You choose to stand by your uninformed opinion (and dig your heels in deeper, even) instead of accepting information from somebody with more knowledge and/or direct experience, or taking the initiative to learn more about it yourself, before spouting off about it on a public mailing list. Jesus take the wheel. ok bear.
Re: Vintage Computer Museum eBay Sales
> On Jun 17, 2021, at 8:09 AM, Al Kossow via cctech > wrote: > > On 6/17/21 7:55 AM, Eric Dittman via cctalk wrote: >> It's a virtual museum using eBay to display the exhibits. >> On 6/17/21 9:48 AM, William Donzelli via cctalk wrote: >>> Approximately zero people ever thought this guy was a museum. > > As a friend used to say, the "Services" in "Vintage Computer Services" refers > to the services a bull supplies to a cow. > I especially liked the H88 recently listed as having been “brought up on a VARIAC” but “the fuse is blown” and “I don’t have a replacement to test it.” It’s that extra mile that really adds value to justify the prices. ok bear.
Re: Anyone want some LMI Lisp Machine tapes?
On Dec 2, 2020, at 12:48 PM, Chris Hanson via cctech wrote: > I’m bidding on these tapes with the intent to get them into the hands of > someone like Josh and/or Al who has the skill and equipment to read and > archive them. Then I hope you're not making it harder by bidding against them. ok bear. -- until further notice
Tallgrass PC hardfile driver/utility software
Folks; I see (and am grateful for) the disk images for the Tallgrass PC Hardfile/Tape unit (TG 3000/3100 series, such as my TG-3020) that have been archived on minuszerodegrees.com. This represents version 4.xx of the utilties, for use with PC-DOS 2.x. I was hoping to use this device on a 5150 PC with PC-DOS 1.1 and CP/M-86. This requires an older version (3.xx) of the DOS software, and one for CP/M-86 1.00 (also Tallgrass software version 3.xx? but a separate disk, I should imagine). If anybody happens to have a copy of either of these and don't mind sharing it, I'd love to hear from you. Thanks! ok bear. -- until further notice
