I have a chance to buy a box full of Radio Shack model 102 portable
computers. None have been tested and there are no power supplies with
them. Does anyone know what voltage and polarity the external power
connector uses? And if there is any kind of self-test built-in? Can anyone
give me an idea of what these are worth?
Joe
> -----Original Message-----
> From: Daniel A. Seagraves [mailto:DSEAGRAV@toad.xkl.com]
>
> [Tell us what's IN stabackit.com!]
Stabackit will build a bootable version of standalone backup on the
target device. You can boot from the device and then restore backup
tapes to new disks.
Jack Peacock
> -----Original Message-----
> From: Daniel A. Seagraves [mailto:DSEAGRAV@toad.xkl.com]
> [VMS standalone backup]
> How do you MAKE one of those? I have an RZ23 making increase
> amounts of noise,
> and I'd like to back it up.
Log in as SYSTEM, then....
$ SET DEF SYS$UPDATE
$ @STABACKIT
follow the prompts, give it the name of the disk or tape device where
you want the standalone built. BTW this only works for VAXes, not
Alphas.
Jack Peacock
My (just on topic) Sun 386i seems to have died. I could hear the hard
drive seeking continuously so I tried to login as root to shut it down and
it hung. I stopped it with L1 + A and then rebooted. part way through the
boot process it simply scrolled the following error message:
sd2a: read retry blk 6728 (abs blk 6728)
sense key (0x04): hardware error error code (0x09): servo error
[repeated 3 times]
sd2: rezero failed
Does this mean that the hard drive ( the standard CDC Wren IV 340Mb ) has
finally turned up its toes?
TIA
Pete
In my library of recent finds, along the same lines...
Apple Interfacing
Microcomputer - Alalog COnverter Software & Hardware Interfacing
Interfacing & scientific data communications experiments
Microcomputer interfacing with the 8255 PPI chip
Interfacing to S-100 / IEEE 696 microcommputers
They're all quite fascinating.
Cheers
A
-----Original Message-----
From: The Adept <adept(a)mcs.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, April 01, 1998 10:27 AM
Subject: Special book find today
>A friend I work with donated the following book to my collection today:
> VIC-20 Interfacing Blue Book, by V.J. Georgiou
>
Here's a possibly stupid question...
I may have mentioned it earlier, but I got a copy of PDPXASM and I'm playing
with it. Just pitching code at the 11/83 to see what I can make it do...
Anyway, I'm playing with telling the RL02 what to do.
Push the head around, write things, etc...
Anyway, Is there a way to, given the the sector number, figure the head/cylinder/sector? Also, is there some mechanism to keep me from screwing up and sending
the heads below track 0 or past 512?
By the figuring CHS question, I mean this: I want to make a single routine
I can call to position the head whereever and dump a sector to disk, but I
don't want to have to know the disk geometry to do it. I pass to it
a unit number, RAM start address, and a sector number. Now how do I divide
the sector number to get the C/H/S? And I don't want to have to use
floating-point to do it...
-------
At 04:39 AM 4/1/98 GMT, you wrote:
>>The way I see it, if they want to make sure the data doesn't get out, they
>>need to delete files.
Some days I can't even think straight... What I meant to convey is that
people should take responsibility for their data. If they care, they
should do something about it (even if it means calling the neighborhood
guru.)
However, not doing that doesn't give anyone the right to turn around and
use that information... If I don't pull my shades, you don't have the
right to make a porno (horror?) movie of it. But, if I care about anyone
seeing my fat carcass, I should pull down my shades.
I do agree with the idea that we, as collectors, should hold ourselves to a
higher standard. If we want folks to continue to pass machines our way, we
need to make sure they feel comfortable about doing it. (Just as I
wouldn't look up what drugs someone is getting from Long's, or what medical
problems someone had when I was working with Aetna Health Plans; I want
them to feel comfortable hiring me again in the future.)
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
roger(a)sinasohn.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.sinasohn.com/
In a message dated 4/1/98 9:57:30 AM Eastern Standard Time,
rigdonj(a)intellistar.net writes:
<< I have a chance to buy a box full of Radio Shack model 102 portable
computers. None have been tested and there are no power supplies with
them. Does anyone know what voltage and polarity the external power
connector uses? And if there is any kind of self-test built-in? Can anyone
give me an idea of what these are worth? >>
shoot, i'd love to have another tandy 102! my ac adaptor for my 102 says 6v dc
at 400 ma
according to the little drawing on the adaptor, the inner part of the plug is
negative. outer part is positive. not sure what they're worth, but i bought
mine with the accompanying battery operated cassette recorder and owner's
manual for $25. would love to find the external floppy for it.
david
So happens my XT is a Leading Edge model D. It's a good solid and slow
system but it works so well and is small.
I got mine from the first owner who bought it new when it first came out.
Prints for it would be nice.
Hacks (plugins) applied to it over the years:
Used the basics disk controller that is on the mother board to run a
720k 3.5" and 360k floppies.
Installed a 1.44/2.88 floppy adaptor so I can run 1.44 floppies.
Installed 1002 HDC and st251
V20 (to run 8080 software)
My Inboard386pc was in that one for a while.
The machine is useful for many things as its so basic and clean clone.
Allison
<PAIA used to sell 6803 boards. (guess it depends on your definition of
<machine.)
<Did anyone ever get one of those? I guess they were mostly for music, bu
<I always wanted one. The ads in the magazines always intrigued me.
PAIA used 650x processors not 680x (that I know of).
Allison
