28 Aug
2002
28 Aug
'02
1:57 p.m.
Well it was a great day being given a tour by a local guy who knows some of
the better places to go for all types of computer stuff. I walked away with
the following items and have a bid in on some others.
1. Data General terminal model 6255 (no keyboard with it),
2. Data General Aviion model G70624D,
3. SGI IRIS Indigo xs24,
4. PowerPC 7200/90,
5. Apple MultiScan 20 display,
6. Mac Performa 630CD.
Below are the items I got a auction yesterday.
NCR monitor model 0271-6090 $0
2-Apple ext. 51/4 FDD $0
IBM 5151 monitor $0
Compaq Amber monitor model Compaq DeskPro $0
IBM PS/1 computer only $0
Tandy ext 51/4 FDD model 25-1060B $0
Sega Master System powerbase $0
Atari video pinball console only model C-380 $5
PowerComputing PowerBase 200 tower $20
28 Aug
28 Aug
2:22 p.m.
At 05:56 PM 8/28/02 -0500, you wrote:
Well it was a great day being given a tour by a local
guy who knows some of
the better places to go for all types of computer stuff. I walked away with
the following items and have a bid in on some others.
1. Data General terminal model 6255 (no keyboard with it),
2. Data General Aviion model G70624D,
3. SGI IRIS Indigo xs24,
Nice catch! What CPU does it have? I just picked up one with 4Gb SCSI, floppy drive,
96Mb RAM, XS-24 video, and a 150MHz R4400 :-)
Joe
4:17 p.m.
Not sure yet as I have not tried to test it. It was only $10 because it is
missing all the drives in the bay but the CPU and Graphics card are both
populated to the max with memory. Will give an update when I have more
info. Yours sounds like a great deal.:-)
----- Original Message -----
From: "Joe" <rigdonj(a)cfl.rr.com>
To: <cctalk(a)classiccmp.org>
Sent: Wednesday, August 28, 2002 7:06 PM
Subject: Re: Goodies from today's trip to new places
floppy
drive, 96Mb RAM, XS-24 video, and a 150MHz R4400 :-)
At 05:56 PM 8/28/02 -0500, you wrote:
>Well it was a great day being given a tour by a local guy who knows some
of
>the better places to go for all types of computer
stuff. I walked away
with
the following
items and have a bid in on some others.
1. Data General terminal model 6255 (no keyboard with it),
2. Data General Aviion model G70624D,
3. SGI IRIS Indigo xs24,
Nice catch! What CPU does it have? I just picked up one with 4Gb SCSI,
Joe
3:49 p.m.
New subject: S-100 Board Info Needed
Ok, I have a couple of boards that I need some info on.
I have a Processor Tech. 16KRA (16K RAM) board. There are three
components missing on the board.
U40 14 pin DIP
U42 16 pin DIP
U58 16 pin DIP
Anyone know what they are? There are also 2 8-pin dip switches that
control addressing and who knows what else. Anyone have the switch
description?
There is also an analog area in the lower left that has a transistor
or two and a data delay module????
The other board is an EconoRAM X. It has 5257N RAMs but I can't find
anything on the RAM. Are these 4Kx1?
Mike
4:04 p.m.
New subject: S-100 Board Info Needed
I have a Processor Tech. 16KRA (16K RAM) board. There
are three
components missing on the board.
U40 14 pin DIP
74LS136
U42 16 pin DIP
74LS157
U58 16 pin DIP
74LS157
Anyone know what they are? There are also 2 8-pin dip
switches that
control addressing and who knows what else. Anyone have the switch
description?
Is this in the upper left corner of the board? If so it
controls the page and address line assignments for the address
selection switches.
All of this info came out of the '16KRA Users Manual', forth
printing, April 1978.
Jeff
--
Home of the TRS-80 Model 2000 FAQ File
http://www.cchaven.com
http://www.geocities.com/siliconvalley/lakes/6757
4:31 p.m.
New subject: S-100 Board Info Needed
Thanks Jeff,
Yes, these are the switches in the upper left. But knowing that they
are address selection switches does not help much. I presumed they
were. But there appear to be 4 banks of 4K RAM. That should only
require about 4 switches for selection. There are 16 switches
however.
So, if you have the manual, can you say what the specific switch
assignements are?
Also, what is the analog circuitry in the lower right, with the delay
module?
Thanks,
I have a
Processor Tech. 16KRA (16K RAM) board. There are three
components missing on the board.
U40 14 pin DIP
74LS136
U42 16 pin DIP
74LS157
U58 16 pin DIP
74LS157
Anyone know what they are? There are also 2 8-pin
dip switches that
control addressing and who knows what else. Anyone have the switch
description?
Is this in the upper left corner of the board? If so it
controls the page and address line assignments for the address
selection switches.
All of this info came out of the '16KRA Users Manual', forth
printing, April 1978.
Jeff
--
Home of the TRS-80 Model 2000 FAQ File
http://www.cchaven.com
http://www.geocities.com/siliconvalley/lakes/6757
29 Aug
29 Aug
11:29 a.m.
New subject: S-100 Board Info Needed
Yes, these are the switches in the upper left. But
knowing that they
are address selection switches does not help much. I presumed they
were. But there appear to be 4 banks of 4K RAM. That should only
require about 4 switches for selection. There are 16 switches
however.
Each 4k page has 4 switches, numbered A12 to A15, and there
are 4 pages. The four switches determine the starting address,
between 0000 and F000, of that page. Page 1 = upper left switches,
page 2 = upper right, page 3 = lower left, page 4 = lower right.
So, if you have the manual, can you say what the
specific switch
assignements are?
Starting address DIP switch setting
Decimal Hex A15 A14 A13 A12
0 0000 x x x x
4,096 1000 x x x c
8,192 2000 x x c x
12,288 3000 x x c c
16,384 4000 x c x x
20,480 5000 x c x c
24,576 6000 x c c x
28,672 7000 x c c c
32,768 8000 c x x x
36,864 9000 c x x c
40,960 A000 c x c x
45,056 B000 c x c c
49,152 C000 c c x x
53,248 D000 c c x c
57,344 E000 c c c x
61,440 F000 c c c c
x= switch open, off, or down position
c= switch closed, on, in up position
Also, what is the analog circuitry in the lower right,
with the delay
module?
According to the manual, the lower section of the board is
all the control logic and U70, which is down along the lower edge in
the right corner, is for the protect/unprotect logic. U71 is a delay
line. Verbatim from the manual it states:
"MC and RC are or'ed in U61, with the output on pin 8 being
applied to U71. U71 is a delay line with outputs which reproduce MC+
RC delayed by 100 nsec (pin 14), 150 nsec (pin 4), 250 nsec (pin 12)
and 350 nsec (pin 6). This is a passive delay line consisting of LC
sections and TTL drivers built into the input and output lines".
I hope this helps. Unfortunately this is one of the
Processor Tech manuals that doesn't seem to be in PDF format on Bob
Stek's site.
Jeff
--
Home of the TRS-80 Model 2000 FAQ File
http://www.cchaven.com
http://www.geocities.com/siliconvalley/lakes/6757
12:42 p.m.
New subject: CP/M 1.3 Question
Not sure if I asked this to the list but I have a version (1.35) of
CP/M. On that floppy there is a version of PIP that does not act
like the manual. Of course I'm using a 2.2 manual, which is a newer
version.
I'm trying to copy some files from one disk to another but this PIP
does not seem to have any multiple file copy.
I tried: PIP B:=A:*.* per the instructions and get a filename error.
It's real tedious copying each file, one-by-one.
The other thing that I wonder about is that there does not seem to be
any allownace for file types on the version that I'm using. I tried
some of the text vs binary options and it won't accept them. Anyone
know if these are necessary when doing disk copys? The files seem to
run ok when copied.
I have not been able to find any manuals for this version on the
internet anywhere. I have checked the CP/M archives but no go.
Thanks,
4:19 p.m.
New subject: CP/M 1.3 Question
On Thu, 29 Aug 2002, Mike Davis wrote:
Not sure if I asked this to the list but I have a
version (1.35) of
CP/M. On that floppy there is a version of PIP that does not act
like the manual. Of course I'm using a 2.2 manual, which is a newer
version.
1.3x is before my time. Hopefully, one of the old-timers will step in.
I tried: PIP B:=A:*.* per the instructions and get a
filename error.
It's real tedious copying each file, one-by-one.
Try ????????.??? instead of *.* '?' is used for single characters, and
groups of them is what '*' gets resolved into. CP/M uses 8.3 filenames.
The other thing that I wonder about is that there does
not seem to be
any allownace for file types on the version that I'm using. I tried
some of the text vs binary options and it won't accept them. Anyone
know if these are necessary when doing disk copys? The files seem to
run ok when copied.
The only issue with file "type" for a CP/M type system (such as MS-DOS) is
going to be whether the system will misunderstand the presence of
character #26 as being EOF. If it copied the full length of the file,
then it worked.
--
Grumpy Ol' Fred cisin(a)xenosoft.com
11:29 p.m.
New subject: CP/M 1.3 Question
In the ol' days "version updates" served a real
tangible purpose. Nowadays it's like trading
new bugs for old .........................M$#&^%$!
IIRC CP/M2.2 introduced the Ambigues Filenames
that we now call Wildcards.............
Sipke de Wal
-------------------------------------------
http://xgistor.ath.cx
-------------------------------------------
----- Original Message -----
From: "Mike Davis" <ipscone(a)msdsite.com>
To: <cctalk(a)classiccmp.org>
Sent: Thursday, August 29, 2002 11:34 PM
Subject: CP/M 1.3 Question
Not sure if I asked this to the list but I have a
version (1.35) of
CP/M. On that floppy there is a version of PIP that does not act
like the manual. Of course I'm using a 2.2 manual, which is a newer
version.
I'm trying to copy some files from one disk to another but this PIP
does not seem to have any multiple file copy.
I tried: PIP B:=A:*.* per the instructions and get a filename error.
It's real tedious copying each file, one-by-one.
The other thing that I wonder about is that there does not seem to be
any allownace for file types on the version that I'm using. I tried
some of the text vs binary options and it won't accept them. Anyone
know if these are necessary when doing disk copys? The files seem to
run ok when copied.
I have not been able to find any manuals for this version on the
internet anywhere. I have checked the CP/M archives but no go.
Thanks,
8002
days inactive
8004
days old
9 comments
6 participants
participants (6)
-
cisin＠xenosoft.com -
ipscone＠msdsite.com -
jhellige＠earthlink.net -
jrkeys＠concentric.net -
rigdonj＠cfl.rr.com -
sipke＠wxs.nl