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101090 discussions

Get up on the wrong side of the bed this morning? [Was: Re: N otes on repa...

by dhquebbeman＠theestopinalgroup.com

> In article > <Pine.LNX.4.10.10005292236130.22871-100000(a)smarty.smart.net>, > R. D. Davis <rdd(a)smart.net> writes > >Is there any way you can retrieve it from the skip if it ends > >up in there? > > Once it is in the skip, anyone taking it away, other than the waste > disposal people, is stealing it. This has already been made clear to > me. Not sure what country you live in, but if you're in the US, then regardless of whatever munincipal laws have been enacted, the U.S. Supreme Court has ruled (on multiple occaisions) that refuse is exactly that- stuff that people no longer want. The most recent case that verified this was when suit was brought against a police department who extracted evidence from someone's trash. The police won that suit, and thus your trash does not receive the constitutional protection that other property gets. respectfully submitted, -doug q

26 years, 1 month

Defining Disk Image Dump Standard

by allisonp＠world.std.com

>>Just as an aside, I recently encountered a datasheet for the WD 1773 FDC >>(similar to 1770/72). Do you know of any systems in which it was used? the 1770/1772 was the 1793+8229+glue on one chip. >Wasn't the 1773 a single-chip version of the 1793, or am I out in Left The 1773 was the earlier single density controller. The 1793 was the later DD and SD controller in nearly the same pinout and basic IO. >Field? The early Tandy controllers that required 12V were based on the >1793, and weren't the later 5Vonly ones based on the 1773? No. The tandy used the 1773 and was wired to provice the -5V and +12V as needed but there were parts that didn't use the -5V (SMC 1773). The 1793 wanted +12 and +5 though there were 5volty only versions later on. Allison

26 years, 1 month

A moment of silence...

by allain＠panix.com

> At the end of last month, Haltek Electronics, Mountain View, > CA closed their doors... Just read this. > Whatever else happens, I pray that other surplus stores, such > as Weird Stuff and Sharon Industries, aren't next on the chopping > block. -- Bruce Lane Please don't hesitate to post If you hear rumors about any of these threatning to close: Alltronics Computer Literacy Halted Wierd Stuff (other like Surplus) Fry's (Yes, even Fry's) News of such a thing could trigger a long put-off return visit. John A. SValley res. 1987-1990.

26 years, 1 month

Kim-1 analog portions

by paulrsm＠ameritech.net

---------- > From: Ryan K. Brooks <ryan(a)inc.net> > To: classiccmp(a)classiccmp.org > Subject: Kim-1 analog portions > Date: Tuesday, May 30, 2000 04:41 PM > > There's a lot of analog stuff (mostly large caps from what I can tell) > in the lower left. Is this power supply stuff? Tape stuff? I've > got a Sym-1, and doesn't have nearly as much analog on it. At www.6502.org there are links to KIM (and SYM and AIM) pages where you can find photographs and schematics. I am sure you can figure out exactly what that stuff does. (Don't ask me, I'm a software guy not a hardware guy.) Paul R. Santa-Maria Ann Arbor, Michigan USA paulrsm(a)ameritech.net

26 years, 1 month

Defining Disk Image Dump Standard

by allisonp＠world.std.com

>I always figured the reason for the restriction was dumb boot PROMs, which >only know how to do programmed I/O to the FDC, and 8" DD comes in too fast >for typical 8-bit CPUs of the time to handle with PIO. If the boot PROM on >a particular system is smart enough to set up DMA, no need to require SD. it's an artifact of how people though the DDmedia was speced by IBM and a lack of knowledge of CP/M boot as everyone just followed the book blindly. Not all required {or even had it!} DMA to do DD, CCS didn't. I'd add that DMA was mostly uncommon save for the more refined or robust systems. Allison

26 years, 1 month

A moment of silence...

by ss＠allegro.com

Re: > > Halted is still here, it was Haltek that went under. > >Dwight > Is HSC the place across the street from WSW and Fry's? > > Where was Haltek? Haltek is/was in Mountain View, off of Moffet & Terra Bella (?), near 101. Halted is in Sunnyvale (?), near Fry's / Costco / (old)NCA / (old) Weirdstuff Warehouse / Action Surplus. If you're coming "south" on Central Expressway, the first exit after Lawrence Expressway is right in front of the Halted building. Stan Sieler sieler(a)allegro.com www.allegro.com/sieler/wanted/index.html www.allegro.com/sieler

26 years, 1 month

Sharp MZ80FB

by hofmanwb＠worldonline.nl

Anyone interested in a Sharp MZ80FB dual floppy drive located in Arnhem Holland? Wim

26 years, 1 month

Defining Disk Image Dump Standard

by allisonp＠world.std.com

>On Tue, 30 May 2000, Richard Erlacher wrote: > >> I never understood why the double density CP/M diskettes were not bootable, >> and why "distribution-standard" diskettes had to be bootable. These are two >> different features, and what's important about the "standard" is not that >> it's bootable but that it's defined so as to be universally readable. That was bogus. The list of system that booted off DD tracks both 8"and 5.25" runs long. The standard for CP/M was 8" SSSD FYI. Also AMPROLB, VT180, DECMATEII/III with CP/M APU, NS* DD/QD systems, SB180, Visual1050, Later Kaypros to name a few with 5.25 DD or QD systems. >> The thing that made 5-1/4" "standard" diskettes unachievable back in the >> CP/M days was that people couldn't let go of the notion that every diskette >> had to be bootable. Frankly, I got fine mileage out of diskettes which >> couldn't be booted, yet I never had a problem booting up. This is bogus as CP/M inferred no difference between bootable system disks and non bootble data disks as the format was the same (they could also be different if desired). Bootable media was only important to single disk systems Even then there were utilities to sidestep this. Lastly for the CP/M case there was no specific requirement to boot from disk at all and the EPSON PX-8 was a commercial example of that. Allison

26 years, 1 month

Defining Disk Image Dump Standard

by allisonp＠world.std.com

>> Just as an aside, I recently encountered a datasheet for the WD 1773 FDC >> (similar to 1770/72). Do you know of any systems in which it was used? No, they are not the same. the latter will do DD and the 1773 was single density. The 1773 was used on TRS80, Icom, and other early systems that were softsector. Allison

26 years, 1 month

free: misc cards for HP 9000 / HP 3000 & other

by ss＠allegro.com

Hi, I have the following cards and MUX panels available for free (for non-ebay use, and you pay shipping): HP 3000/9x5 / HP 9000/8x5 boards: 6 port MUX & cable: board 27140-81001?, cable 28659-63002 (I have two of the above boards/cables) (note: they might possibly work in a 9x7 / 8x7) MUX Panels: 40290-60003: RS 232C Panel 25 Pin (8-port) 40299-60002: RS 232C Full Modem (8-port) Note: neither of the above panels work with either of the above boards/cables. (I.e., the cable/plug aren't even the same size.) Nor do I have cables for these panels. HP 30000/37 ("Mighty Mouse") boards: 3000/37 MUX (no cable or panel) 3000/37 1/2 MB memory Misc: SDI PCA DTC Card: 02345-60021 (No, I don't know what it is, either!) AFAIK, all cards were in working order when pulled from equipment. They're at our office in Cupertino, CA. Those that aren't spoken for will probably be offered on eBay in a week or so, but I wanted ClassicCmp readers to get first chance. thanks, Stan Sieler sieler(a)allegro.com www.allegro.com/sieler/wanted/index.html www.allegro.com/sieler

26 years, 1 month

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