Scott,
If you haven't found 10.20 for 800's yet, let me know. I'm sure I have an extra set *somewhere.
See ya,
SteveRob
steerex[at]mindspring[dot]com
----------
From: Scott Quinn
Sent: Friday, July 28, 2006 3:03 PM
To: cctalk at classiccmp.org
Subject: Re: Not classic, but free: HP-UX
They don't skimp, either - I was expecting HP-UX 11i base, but they send out the
Mission Critical OE.
I've got it going for a trial install in the G70. It's clicking along just fine so far.
I think when I'm done I'll investigate HP-UX 10.20 for 800s (if I can find it), perhaps
a bit faster on the old hardware. Other option would be the base 11i. For now, I'm throwing
the kitchen sink at it to see what happens (other than running out of disk space - 4GB (binary) isn't
quite enough for everything...
Question for the HP 9000/800 people - what is the eqivalent of the VAX "break to console" function (either
terminal-break or panel halt+halt)? (or the Sun L1-A) on these old beasts?
It takes quite a long time to bring up the PDC console from power-on.
> Didn't installing TCP/IP require one of the infamous 'pink cards' which
> would also require a phone-in activation?
>
> Jay
The one I have uses the "Yellow Card" method, and just needs two long obscure codes. Contact me off list if these are of interest.
Kelly
Hello Dwight
> Please try at least one of two experiments. Either actually measure
> with an inductive load or do a simulation. For a transformer, zero
> cross is the worst time to start.
Why? What do you expect to happen? At zero crossing there is no volts
and no current will flow. The current will start to increase as the
voltage increases and continue to do so until the next zero cross point.
> Don't confuse steady state action with the first cycle. The response
> is not the same.
Agreed. At the first cycle there is no energy stored in the inductor so
switching it on at zero cross gives a circuit with no stored energy.
> With an inductive load, this is at 90 degees, or peak
> voltage. This is also the best time to turn it on.
If you turn on an inductor at peak voltage you will get a magnetization
offset that may take many cycles (approx LR) to decay. This gives a peak
current that is much greater that that from switching on at the zero
cross point and is clearly not the best point to turn it on.
Lee.
Sorry for the OT posting, but I figure I'd find some qualified Unix techs
here. I have a client in the Springfield, Missouri area that needs to get
some data off of a very old SCO unix box. The box is not interconnected
with anything else, and the only means to get data off--an old Irwin 60MB
tape drive, went bad. I figure there would be a simple way to get the
data off the hard disk, by either mounting it into a Linux box or adding
an external drive to the SCO box via SCSI (though I'm not sure if it has a
SCSI interface...in fact I know next to nothing about the box currently).
If anyone is interested in this project, please e-mail me directly (I
won't see any responses to the list). Time is of the essence, so please
reply soon.
P.S. VCF 9.0 is November 4-5. Web page going up today.
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
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> Date: Tue, 01 Aug 2006 17:35:56
> From: "Joe R." <rigdonj at cfl.rr.com>
>
> Purina Diet
> I was in Wal-Mart buying a large bag of Purina for my Labrador
> retriever and was in line to check out. A woman behind me asked
> if I had a dog? On impulse, I told her that no, I was starting The
> Purina Diet again
http://www.angryman.ca/monkey.html
P.S. - Sorry to feed the OT thread...
Subject: Purina Diet
Purina Diet
I was in Wal-Mart buying a large bag of Purina for my Labrador
retriever and was in line to check out. A woman behind me asked
if I had a dog? On impulse, I told her that no, I was starting The
Purina Diet again, although I probably shouldn't because I'd ended up in
the
hospital last time. But that I'd lost 50 pounds before I awakened in an
intensive care ward with tubes coming out of most of my orifices and
IV's in both arms. I told her that it was essentially a perfect diet and
that
the way that it works is to load your pants pockets with Purina nuggets
and simply eat one or two every time you feel hungry & that the food is
nutritionally complete so I was going to try it again. I have to mention
here that practically everyone in the line was by now enthralled with my
story. Horrified, she asked if I'd been poisoned. I told her no, that
I'd been sitting in the street licking my butt when a car hit me .
Hi all,
Basically, I bought a bunch (40) of
80 Microcomputing magazines which are in
pretty much mint condition. Every so often
I type up interesting articles and post them
to a couple of groups I am a member of.
Since I am new here, I don't know whether
this is allowed or not. If not, just let me
know.
A long read, but quite an interesting one. I
was trying to keep this short, but I ended up
typing up most of the article!
Source: Page 122, 80 Microcomputing #42 (July
1983) - a Wayne Green Publication.
Ignoring the adverts, the full length article
about Lobo's (or Lobo Drives International, to
give it it's full name) Max-80 computer is 4
pages long and is written by R.A. Langevin. I
have attempted to give a summary of all the
interesting bits. Read on....
Lobo Systems' Max-80 is an 8-bit microcomputer
that supports LDOS and CP/M; has an impressive
array of storage options, including floppy and
hard disks; serial input/output; and both serial
and parallel printer ports. In terms of
versatility and performance per dollar, it's
unquestionably a best buy in todays marketplace.
The system is a natural upgrade for [TRS-80]
Model I owners since it offers CP/M while
preserving their investment in disk drives and
in much of their software. It is also
completely at home in a business environment.
Not everyone, however, will appreciate this
computer. Serious game players will find they
can't use self-booting disks in the machine
[what the?!]. In addition, although Model I
graphics are supported and limited graphics
are available in the CP/M mode, the Max-80
cannot presently display full-screen, high
resolution graphics, a deficiency that makes
it unsuitable for some business uses.
The Max-80 is basically a single-board
computer housed, with it's power supply, in an
attractive, ivory coloured plastic case
mounted on a steel baseplate. It complies
with the radiation limits established by the
FCC for Class A computing devices. Although
this standard states that operation of
complying equipment is likely to cause
interference in residential areas, I have not
encountered problems even with a television
in the same room.
The Max-80 is 17.5 inches wide and 10 inches
deep. The top of the machine is 2 inches off
the table top at the front and slopes gently
upward [like my Amiga 600] to 3.5 inches at
the top of the keyboard. The rear of the
case holds a line fuse and all the connectors
and switches [sounds familiar]. The internal
power supply operates off 110-115 volts AC
and is efficient enough so that a fan isn't
necessary to keep the electronics cool
[computers needed fans back then?]. The
entire computer requires only 28 watts. Even
after hours of continous operation, the case
is never warm to the touch. The reset button
is safely located at the rear of the machine.
Except for an optional 64K bank of memory,
the Max-80 is complete as it comes out of
the box. There are no extra boards for disk
interfaces, serial I/O, or video electronics.
As a result, the machines original cost is its
only cost.
The machine is available with LDOS 5.1 and
CP/M 2.2; much of the available [TRS-80] Model
I and Model III software are supported as is
8-bit CP/M software. This combination of
operating systems provides access to a larger
software base than that of most competing
machines.
- CPU: Z80B @ 5.07 MHz
(faster than TRS-80 I, II ,III & 12 and the Softcard
Apple)
- Realtime clock (years, months, days, hours
and seconds, all accessible by software) with
internal rechargeable battery
- Keyboard features a 10-key numeric pad, 4
programmable function keys and a cursor-
control block that includes a clear key. All
ASCII keys are supported by auto repeat and
the entire keyboard is fully debounced.
- RAM supplied by one (or two) banks of 64K
each, provided by 8 (or 16) Texas Instruments
TMS 4164-20 chips.
- Only 1 ROM which contains a small bootstrap
loader that disables once the system boots.
As a result, the modified LDOS supplied with
the system loads the bottom 12K of RAM with
the code that resides in ROM on Tandy or LNW
[who?] machines. Consequently, currently
available self-booting disks don't operate on
the Max-80.
- Separate gold plated card edges for
connecting 5 inch and 8 inch floppy drives
(both supporting single and double density,
aswell as single and double-sided, disks) and
are supported by the built-in controller in both
TRS-80 and CP/M modes. A slide switch
mounted adjacent to the 5 inch disk connector
controls pin 32, permitting it to select drive 4
or, alternatively, to act as the side-select
signal when using double-sided drives. Track
counts of 35, 40, 77 and 80 are supported on
5 inch disks and the standard 77 tracks on 8
inch disks.
- A hard disk interface is also included in the
Max-80 and is available on a 50-pin,
gold-plated card edge on the rear of the
machine. This Shugart Associates Standard
Interface (SASI) is designed to be used with
an external controller. Both of the computers
operating systems are presently configured to
use Lobo Systems' Universal Controller and
do not support other controllers without
modification.
- Maximum of 4 drives with LDOS, or 8 drives
with CP/M. Since so many disk options are
available they have included a DIP (Dual In-line
Package) switch is provided on the rear of
the case so you can boot from either a 5
inch (or 8 inch) floppy, 5 inch (or 8 inch) hard
disk or a 5 inch (or 8 inch) floppy connected
via the universal controller.
(If you have the extra 64K of memory installed,
it's possible to set up a ninth RAM: drive with
1K of directory space and 63K of storage space)
- 5 inch disks can be formatted in Lobo's
single or double-sided, double density format
or in Osbourne, Xerox 820 or Omikron single
density, single sided formats
- 8 inch disks can be formatted in IBM single
sided, single density and double sided, single
or double density formats.
- Serial I/O is provided from 2 independently
programmable RS-232 interfaces (provided by
a Z80 SIO chip, rather than a UART chip as in
Tandy's machines) accessible through DB-25
connectors on the rear of the case. Either
interface supports all standard baud rates up
to 19,200 and can be used to drive a serial
printer.
- Parallel printer output is available via a
standard Centronics interface, with a slide
switch adjacent to the port which permits
grounding or ungrounding pin 27 to adapt to
printers (like the Epsom MX-80) that interpret
a grounded pin 27 as a request to generate a
line feed after each carriage return.
- Video output is via a RCA phono jack and
drives any monitor that accepts 1 volt
composite video from a 75 ohm source and
provides 15,750 Hz horizontal and 60Hz vetical
sync frequencies.
Lobo recommends a monitor bandwidth
extending from DC to atleast 12 MHz to obtain
good detail in the display, This is especially
important in the CP/M mode, where the normal
display is 80 characters by 25 lines. You can
select a 40 character by 25 line display with a
function key. In the TRS-80 mode, the display
is a compatible 64 or 32 characters by 16 lines.
- Standard TRS-80 Model I graphics are
supported by the LDOS operating system - the
extended graphics of the [TRS-80[ Model III
are not. In the CP/M mode you can display up
to 192 user-defined shapes. The first 128
shapes are limited to shapes that can be
defined in the top half of a 8x16 pixel
rectangle (and in normal use are used to
display the ASCII character set). The remaining
64 shapes can be defined in a full 8x16 pixel
rectangle.
Max-80 with just 64K and CP/M 2.2 - $820
LDOS 5.1 - $69
64K RAM expansion - $95
Amdek Video 300 Green Screen 12" Monitor - $175
Regards,
Andrew B
aliensrcooluk at yahoo.co.uk
Hi,
I tried to post this last night, but used the
wrong address (cctalk at classiccomp.org)!
I'm new!
I'm Andrew, 26, from the UK and since 2001
have developed a healthy interest in the Amiga
after getting an Amiga 600.
I won't bore you with it's specs (unless anyone
wants me too :) ), but I have a problem in
that it's possible a resistor may have become
faulty (looooonng story). With all this talk
of PCB's etc. I was wondering if anyone here
had any advice (or experience) in replacing
a resistor (if it's possible)?
I use my Amiga for fun and for developing
my own games (via AMOS BASIC and then
compiling them) and music (thanks to Teijo
Kinnunens Octamed 5).
I also have recently started becoming
interested in the TRS-80. I currently have 30
issues of 80 Microcomputing (#20 to #50)
which I bought off a guy from Ebay Australia
and they are pretty much in mint condition.
Great for reading and learning about retro
computers (not just the TRS-80) :)
Thanks for listening and I hope to learn alot
about retro computers in the coming years.
Regards,
Andrew B
aliensrcooluk at yahoo.co.uk
>I belive Unixware partition support is in (make menuconfig) File Systems ->
>Partition Types -> PC BIOS -> Unixware slices support, and filesystem
>support is under Miscellaneous -> System V/Xenix/V7/Coherent file system
>support.
Yes, UnixWare is (pretty straight SysV.4, [SCO's marketing would be quick to
point out that it is now SysVr5 because they say so] decended in a right true line from AT&T
System V release 4 through USL and Novell), but my impression was that the system
in question was SCO UNIX, an entirely different beast (bears more in common with
XENIX). SCO UNIX begat their OpenServer line.
