bherr...@txfb-ins.com (Herring, Bobby) writes:
TOD Clock switch AFAIK came in with the 370. I remember it
specifically on the 168 my memory is iffy on the 155/158 but I think
it was there, no experience on the 14X .
If it was there on the 360s I never heard/saw anything about it.
TOD was
re:
http://www.garlic.com/~lynn/2011k.html#27 CLOCK change problem
32bit value with 15hr duration ... different models decrement bits
depending on timer resolution of the model.
re:
http://www.bitsavers.org/pdf/ibm/360/funcChar/GA24-3231-7_360-30_funcChar.pdf
pg. 29, Interval Timer
The Model
chrisma...@belgacom.net (Chris Mason) writes:
The 2540 was an enormously versatile machine in that it not only
supported the card reading function but also the card punching
function.
http://www.columbia.edu/cu/computinghistory/2540.html
Google ad: first hit with search words IBM 2540
shmuel+ibm-m...@patriot.net (Shmuel Metz , Seymour J.) writes:
You really mean 709 and not 7090? That's a big jump!
re:
http://www.garlic.com/~lynn/2011k.html#8 Last card reader?
univ. supposedly had something like #3 709, thousands of tubes that
constantly required maintenance ... something
steve.do...@ccbcc.com (Steve Dover) writes:
Phil, we had one at Allstate Insurance until 1990. 2540 reader/punch.
I sure miss the chads, they were great fun in desks and cars. But I
do not miss hauling the 50 pound boxes around.
as undergraduate in the 60s ... univ. was using sense-marked
ps2...@yahoo.com (Ed Gould) writes:
Wasn#39;t there a card reader as a requirement for 3090 and before
so the CE could install the OLTEP program and a rudimentary IOCDS to
run his diagnostics?
3092 (3090 service processor) was a pair of 4361s running a special
custom vm370 release 6 off of
hfdte...@comporium.net (John Baker) writes:
The X'A0' opcode provided various VS APL Assist functions.
this was done at palo alto science center for 370/145. 370/145 had
loadable microcode from floppy disk ... and would start to take away
high real storage (from processor memory) for microcode.
shmuel+ibm-m...@patriot.net (Shmuel Metz , Seymour J.) writes:
The B2 opcodes came later. Some of the emulator features on the S/360
had longer opcodes.
diagnose (x'83') is supervisor instruction defined as model
specific. common mechanism was the displacement field was used as
extended
peter.far...@broadridge.com (Farley, Peter x23353) writes:
ITYM RL/S (Rand Language for Systems). I was at the SHARE in NY that
year and managed to score a copy of the RL/S manual, but I never had
my hands on a tape. Still have the manual around here somewhere
though.
If I remember the
rfocht...@ync.net (Rick Fochtman) writes:
My two cents' worth: that auditor needs to find a more challenging
shop. He's nit-picking on trivia and showing just how paranoid he
really is. Too much time on his hands.
one of the biggest challenges when we started doing the (internal)
online
eamacn...@yahoo.ca (Ted MacNEIL) writes:
Recently, I worked at a shop where our VP told us we must have all
that info in our signature block -- quite the opposite!
a group of us were the first to have business cards made up with our
internal newtwork email address (as well as arpanet email
steve_con...@ao.uscourts.gov (Steve Conway) writes:
From a security standpoint, the less you expose to the outside world, the
better. Join a few security newsgroups / mailing lists, and see what
(justified) paranoia REALLY looks like.
we were tangentially involved with the cal. state data
efinnel...@aol.com (Ed Finnell) writes:
_June 2011 | TOP500 Supercomputing Sites_
(http://www.top500.org/lists/2011/06)
That's a whollottaflops...
and a whole lot of sparcs ... regardless of what sun/oracle is doing.
recent comment (in linkedin) thread that possibly a blade
john_w_gilm...@msn.com (john gilmore) writes:
This morning's New York Times, which perhaps not quite all of you see,
contains a piece attributing IBM's unexpectedly good financial results
to sales of new mainframes.
from bloomberg/businessweek
IBM Gains After Raising Profit Forecast on
charl...@mcn.org (Charles Mills) writes:
Somewhat OT but why? Why not C on the mainframe? Why two code bases, one
fairly easy to debug and one relatively hard to debug?
I am thrilled with writing software for the mainframe in C (C++ actually)
after years of laboring in assembler.
the los
ba...@mxg.com (Barry Merrill) writes:
PROFS was Ollie North's downfall
Actually, it was the site's VERY GOOD backup philosophy that
kept backups long-term, and the PROFS implementation at that
site that when the user deleted a message, it wasn't deleted.
almost every such datacenter
jagadish...@gmail.com (jagadishan perumal) writes:
Just wanted to know whether a web version of mainframe can be implemented.
One of our user is trying to access from a remote location using a wireless
internet in which the IP changes everytime.
first web server outside cern on slac vm/cms
rkueb...@tsys.com (Kirk Talman) writes:
If this is the beast I think it is, it attached only to 360s as a channel
that had outboard channels. Memory (no bit correction) says that was 44,
65, 75, 91, and 165/8 on 370. May be more. The programs were channel
programs. I was told that this
timothy.sipp...@us.ibm.com (Timothy Sipples) writes:
That's not really true. For example, there was the IBM Engineering and
Scientific Subroutine Library (ESSL) Vector and Scalar/370 software. That
software provided a library of mathematical functions you could call from
FORTRAN, C, PL/I,
l...@garlic.com (Anne Lynn Wheeler) writes:
try search linkpak 3090 vf for various other refs
finger slip ... that should be linpack (not linkpak)
http://en.wikipedia.org/wiki/LINPACK
first top 500 doesn't have ibm mainframe
http://www.top500.org/list/1993/06/100
old post w/s-computer sep86
ps2...@yahoo.com (Ed Gould) writes:
Another topic. What was the IBM # for the specialized processor engines that
were something like AP's (but weren't) on the 3090. I keep coming up with a
3088, but I know thats not correct. If I could remember more I could google
but
the number is just
mike.a.sch...@gmail.com (Mike Schwab) writes:
Vector processors. Instruction Op-codes were re-used for z/Series.
So Hercules was consolidated into 3 models. Latest S/370 with 64MB
real, XA through S/390 with vector, and z/Series. Earlier models
would run on the last model, just the
l...@garlic.com (Anne Lynn Wheeler) writes:
IBM TSS/360 pubs at bitsavers:
http://www.bitsavers.org/pdf/ibm/360/tss/
re:
http://www.garlic.com/~lynn/2011h.html#68 IBM Mainframe (1980's) on You tube
http://www.garlic.com/~lynn/2011h.html#69 IBM Mainframe (1980's) on You tube
one of the things
ps2...@yahoo.com (Ed Gould) writes:
All the google searches are mute (or Cost $$$)
As to the mega flops the facility had. Anyone have the numbers?
Sorry to ask these semi off topic question but I was asked about them
and am at a loss to find documentation that doesn't. Cost $$
As a side
shmuel+ibm-m...@patriot.net (Shmuel Metz , Seymour J.) writes:
It's older than that.
re:
http://www.garlic.com/~lynn/2011h.html#44 OT The inventor of Email - Tom Van
Vleck
besides:
http://www.multicians.org/thvv/mail-history.html
other CTSS reference pages by Tom
eamacn...@yahoo.ca (Ted MacNEIL) writes:
Considering the circumstances of a disaster, it wouldn't amaze me. In
1969, the Canadian government started forcing all financial
institutions, over a certain size, to implement a DR plan, and test
it.
In the 90s, major ATM transaction processing
ps2...@yahoo.com (Ed Gould) writes:
http://www.multicians.org/thvv/mail-history.html
more off-topic ... some number of people from CTSS went to the science
center on 4th flr, 545 tech sq. and did (virtual machine) cp40 (on
360/40 with hardware modifications to support virtual memory) ... which
bi...@mainstar.com (Bill Fairchild) writes:
A long time ago a friend of mine told me that the mental abilities to
do computer programming, music, and foreign languages are probably
linked genetically. Since then I have noticed a lot of anecdotal
evidence to support this theory, including
bi...@mainstar.com (Bill Fairchild) writes:
So what is the exact location, velocity, and/or mass of one particular
electron?
well ... they did manage to recently report that the shape is spherical
Electron is surprisingly spherical, say scientists following 10-year
study
scott.r...@joann.com (Scott Rowe) writes:
If it bothers you that much you are going to have to go back to running on
older (slower) hardware. It is just not possible without throwing out all
the innovative features that allow current processors to run at the speeds
they do. If you think it's
charl...@mcn.org (Charles Mills) writes:
Also is not fiber preferred over copper for secure applications because it
does not act as an antenna?
the internal network was larger than the arpanet/internet from just
about the beginning until possibly late 85 or early 86. the corporation
required
ps2...@yahoo.com (Ed Gould) writes:
I am not sure any numbers you can come up with would tell a story (thats
accurate). I suspect even IBM (in some cases) does not have a clue as to what
is
running on any given machine. Especially in the sensitive areas of the
government. I knew of one
ps2...@yahoo.com (Ed Gould) writes:
Funny you mentioned that. He was part of the team that looked through
the watergate email (profs) and he was also involved in trying to get
data from some of the drives. He didn't go into a lot of detail but
there was some effort to try and recover
l...@garlic.com (Anne Lynn Wheeler) writes:
old '89 email with copy of the spring '85 announcement
http://www.garlic.com/~lynn/2011c.html#890731
re:
http://www.garlic.com/~lynn/2011g.html#73 We list every company in the world
that has a mainframe computer
http://www.garlic.com/~lynn
dcrayf...@gmail.com (David Crayford) writes:
http://www.redbooks.ibm.com/redbooks/pdfs/sg246515.pdf
There is one programming aspect that is relevant, although only
slightly linked to the use of a split cache. For many years, it has
been an axiom among S/360 - S/390 users that assembly
john_w_gilm...@msn.com (john gilmore) writes:
These optimizations are also devised by groups whose full-time job is
to optimize code skeletons that are used stereotypically in
compiler-generated code; and these groups inevitably come to have a
vested interest in cleverness, i.e., non-standard,
re:
http://www.garlic.com/~lynn/2011g.html#57 What is the current feeling for MVC
loop vs. MVCL?
other recent gcc reference:
http://www.garlic.com/~lynn/2011g.html#50 My first mainframe experience
... and recent reference to out-of-order pipeline introduced
et...@tulsagrammer.com (Eric Chevalier) writes:
Why do the letters N S A keep popping into my mind??? :-)
from long ago and far away:
http://www.nsa.gov/research/selinux/list-archive/0409/8362.shtml
one of the benefits of cp67 and then vm370 was complete source as well
as tradition of doing
lindy.mayfi...@ssf.sas.com (Lindy Mayfield) writes:
I seem to recall one OS had a command to crash the computer. Kill
command or some such. Took the fun out of everything I guess, or I
perhaps that was their intention.
internally, in the 70s80s, large percentage of systems ran vm ... that
ps2...@yahoo.com (Ed Gould) writes:
Back in the 70's 80's the place I worked had 1500 (or so) local 3270's off
of
a 168MP.
We were truly at the UCB # limit for MVS. We were forever having to do
sysgens
as our VP was a hungry for drives. The conversion to 3350's did save us a bit.
But
jim_peter...@homedepot.com (Petersen, Jim) writes:
How about 2260's was a terminal control unit for terminals which only
had 12 lines by 80 Cut my teeth on 360/65 and a 360/50 and a 360/40
and they had a 360/20 down at one of our sites for RJE.
re:
http://www.garlic.com/~lynn/2011g.html#41
gerh...@valley.net (Gerhard Postpischil) writes:
The 2260s were attached to a 2848 control unit. I worked at ADR when
they were announced, and a couple of us used them for playing games
(e.g., a battleship game by Dave McBride). {partly as a result of our
experience, we won a CIA contract for
chrisma...@belgacom.net (Chris Mason) writes:
http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/admg1a05/6.3.4
Table 8 has all the numbers.
3174 was a 3270 control unit.
4341 was a processor, a mainframe.
3272 was controller for 3277
3274 was introduced as controller for 3278.
rfocht...@ync.net (Rick Fochtman) writes:
Rumor had it at one time: the MSS cartridges contained all the
left-over tape from the 2321 strips. Seems that the tape was
over-stocked 'cuz the 2321 never took off like someone hoped it would.
re:
http://www.garlic.com/~lynn/2011g.html#36
2321
st...@trainersfriend.com (Steve Comstock) writes:
Ahhh! The memorable Mass Storage System. Pluck, shuck, and play.
ISTR it was the 3950, but I could be wrong. I wrote training for
it back when I was with IBM; even had it translated into German.
But I can't find the books now (this was 1974-75
poodles...@sbcglobal.net (Dan Skomsky, PSTI) writes:
It is obvious IBM has a different direction they are pursuing. I have
been re-hosting CICS applications onto Windows platforms for over ten
years. From what I have seen, all the smaller accounts have been
converted with only the Big Boys
mike.a.sch...@gmail.com (Mike Schwab) writes:
http://en.wikipedia.org/wiki/IBM_AIX
IBM wrote TSS/370 in 1980 then VM/IX then AIX/370 in 1988 then AIX/ESA
until 1999 when it merged into MVS/ESA Open Edition.
tss/360 was done in the 60s (official system for 360/67) ... was
decommited and lived
paulgboul...@aim.com (Paul Gilmartin) writes:
I've long wondered, if sequence numbers are so valuable, why
haven't they spread outside the progeny of unit record systems?
cms multi-level source update infrastructure relied on sequence numbers
... started out with cp67/cms and the cms update
re:
http://www.garlic.com/~lynn/subtopic.html#80 TSO Profile NUM and PACK
Note: UNIX traces some of its history back to CTSS by way of MULTICS
done on 5th flr of 545 tech sq. VM370/CMS also traces history back to
CTSS by way of CP67/CMS and CP40/CMS done (at science center) on 4th flr
of 545 tech
at one point there was almost PCO (personal computing option) ... sort
of TSO for VS/1 ... however it was eventually pointed out that PCO was
also initials for political party in europe ... and PCO morphed into
VS/PC.
there was one plan to have VS/1 machines already preloaded with vm/cms
(sort of
jeff.ho...@fiserv.com (Jeff Holst) writes:
I think that when I was later in an MVS shop, our auditors used that same
playbook, but I also think that they read slowly, as they seemed to find one
new thing in the book each year.
when corporate came in for audit of SJR datacenter in the early
In 005a01cbff6c$b63dded0$22b99c70$@hawkins1...@sbcglobal.net, on
04/20/2011 at 08:07 AM, Ron Hawkins ron.hawkins1...@sbcglobal.net said:
I remember spending some time playing with CPU affinity trying to
keep the CPU bound jobs away from the AP
re:
http://www.garlic.com/~lynn/2011f.html#49 Dyadic
martin_pac...@uk.ibm.com (Martin Packer) writes:
Ron, care to remind us of the modelling difference? It's been a while. :-)
360 370 dual-processors shared memory but each processors had its own
dedicated channels ... and the configuration could be split and run as
two separate processors.
l...@garlic.com (Anne Lynn Wheeler) writes:
DYADIC was term introduced with 3081 ... where it wasn't possible to
split the configuration and run as two separate independent processors
(wanted to draw distinction between past 360/370 multiprocessor that
could be split and run independently
d...@lists.duda.com (David Andrews) writes:
Once upon a time I found it useful to condense a month's worth of RMF
data into a single graph showing the average CPU utilization over the
course of a day, plus-or-minus one standard deviation. That drop-bar
chart made it easy to visualize
l...@garlic.com (Anne Lynn Wheeler) writes:
part of the issue was that the base support shipped with a box that was
basically a channel-attached bridge (similar but different to 3174 boxes
that supported LANs) ... so the host stuff had to do all the ARP/MAC/LAN
layer gorp ... rfc1044 support
steve_con...@ao.uscourts.gov (Steve Conway) writes:
OK, let's invoke Jaffe's Law (Any ibm-main discussion will eventually
become a history lesson) immediately.
In this case, I need a history lesson, preferably with citable references.
When (year and OS release, if available) did TCP/IP
l...@garlic.com (Anne Lynn Wheeler) writes:
the company product was done on VM and implemented in vs/pascal
(5798-FAL). it had a number of thruput issues ... but I did the RFC1044
enhancements and in some testing at Cray research ... between a 4341 and
cray ... got channel media sustained
mike.a.sch...@gmail.com (Mike Schwab) writes:
Writing the SE Linux was done with a National Security Agency (No Such
Agency) (NSA) research grant.
http://www.nsa.gov/research/selinux/
also from long ago and far away:
http://www.nsa.gov/research/selinux/list-archive/0409/8362.shtm
--
scott_j_f...@yahoo.com (Scott Ford) writes:
??? whats it XMASCARD
recent post
http://www.garlic.com/~lynn/2011b.html#9
mentions:
there was xmas exec on bitnet in nov87 ... vmshare archive
http://vm.marist.edu/~vmshare/browse?fn=CHRISTMAft=PROB
and was almost exactly a year
scott_j_f...@yahoo.com (Scott Ford) writes:
Well 1987 wow before the real firewalls. Security was on the inbound/outbound
dial devices. Also worked VM, cut my teeth on VM/SP1
, loved VM, still do, I can how a exec would cause major pain in a VM system,
no
doubt. z/OS would be a bit tougher
gra...@ase.com.au (Graeme Gibson) writes:
Well, let's not skew the kiddie's brains too much..
re:
http://www.garlic.com/~lynn/2011f.html#12 New job for mainframes: Cloud platform
yes, well ... I thot it was also interesting that 2702 (IBM line
scanners) managed to (also) reverse bits within
shmuel+ibm-m...@patriot.net (Shmuel Metz , Seymour J.) writes:
Access registers were ESA; they were announced for the 3090. Was the
3081 a testbed for them, or was that a typo?
re:
http://www.garlic.com/~lynn/2011f.html#12 New job for mainframes: Cloud platform
timothy.sipp...@us.ibm.com (Timothy Sipples) writes:
I've known HP in its sales pitches to make a lot of fuss about
endianness as reason why it would be oh-so-difficult for an HP-UX
customer to move to Linux on X86, or for a Linux X86 customer to move
to (or add) Linux on System z, depending
mike.a.sch...@gmail.com (Mike Schwab) writes:
Most of your Micro$oft and Linux errors are due to the C language
defining an end of string as x'00', and the programmer forgetting to
check the lenght of the input against the buffer. The the hacker
sends a malformed string to that function and
New job for mainframes: Cloud platform
http://www.computerworld.com/s/article/9214913/New_job_for_mainframes_Cloud_platform
from above:
As companies take steps to develop private clouds, mainframes are
looking more and more like good places to house consolidated and
virtualized servers. Their
ibm-m...@tpg.com.au (Shane Ginnane) writes:
And how is any of this news ?.
(comment aimed at the wider community, not Lynn specifically)
re:
http://www.garlic.com/~lynn/2011f.html#7
previous was from several days ago ... more recent items from today:
IBM Jumps Into Cloud, Customers Tip-toe
r.skoru...@bremultibank.com.pl (R.S.) writes:
Yes, however my curiosity is related only to coax port - coax port
channel. In this scope any other bottleneck does not apply. Of
course in real word the weakest link of chain is the most important.
BTW: 3174 can be channel-attached, and I guess
s...@pscsi.net (Sam Siegel) writes:
Please consider the RAS on the US domestic phone switching network.
It is a distributed system that (to my knowledge) does not use z/OS or
zSeries hardware. You also have service providers like Google, the
global DNS servers, etc. The list can be easily
t...@harminc.net (Tony Harminc) writes:
The criteria are quite different. A public phone system that connects
0.0001 percent of calls to the wrong place and drops a similar number
in mid call is perfectly acceptable. A phone system (even a single
local switch serving 10,000 lines) that is down
r.skoru...@bremultibank.com.pl (R.S.) writes:
What is the throughput of coax connection?
I'm aware hat it's usually used for hard terminal connectivity,
i.e. 3278 to 3174 and speed is simply good enough.
However let's imagine PC with coax card connected to 3174 and IND$FILE
transfer. What
mellonb...@yahoo.com (Bill Johnson) writes:
We are trying to sync up (and expand) our mainframe passwords to match
what the user has in active directory. So far so good. The problem is
when the AD password is longer than 8 characters. Anyone shed some
light as to how this can be handled?
st...@trainersfriend.com (Steve Comstock) writes:
But I am curious as to why the mainframe doesn't just go
away: there must be one or more z/OS applications that the
Windows folks just can't beat. Can you describe what applications
are keeping the mainframe around? And why Windows folks can't
mike.a.sch...@gmail.com (Mike Schwab) writes:
Internet pioneer Paul Baran passes away, March 28, 2011. Designed
Packet switching that was incorporated into Arpanet in 1969 later IP.
http://www.bbc.co.uk/news/technology-12879908
After reading that, I found interesting this article,
efinnel...@aol.com (Ed Finnell) writes:
Was it Walt Dougherty(sp) that used to give the networks update at SHARE
early eighties? Started with a two page binder and mid-eighties was about an
inch and half of Fanfold...
re:
http://www.garlic.com/~lynn/2011e.html#76 Internet pioneer Paul
l...@garlic.com (Anne Lynn Wheeler) writes:
the majority of the internal nodes had always been VM ... but starting
in the late 70s there was an explosion in the number of vm/4341 nodes.
re:
http://www.garlic.com/~lynn/2011e.html#77 Internet pioneer Paul Baran
There a huge number of JES/NJE
t...@cio.sc.gov (Bonno, Tuco) writes:
Graduate, College of Conflict Management;
University of SouthEast Asia;
I partied on the Ho Chi Minh Trail - tiến lên !!
Friday PoOps trivia ... was one of the first mainstream IBM pubs to move
to cp67/cms script. The motivation was PoOps was a subset of
from long ago and far away, IBM Jargon:
FS - n. Future System. A synonym for dreams that didn't come true.
That project will be another FS. Note that FS is also the
abbreviation for functionally stabilized, and, in Hebrew, means zero,
or nothing. Also known as False Start, etc.
... snip ...
I
john.mck...@healthmarkets.com (McKown, John) writes:
Perhaps not financially viable. We complain about how much z/OS
costs right now. Imagine the howls of rage if IBM were to increase the
cost of z/OS by 10% (to pick a round, random, number) and say that it
was to allow z/OS to use FBA
re:
http://www.garlic.com/~lynn/2011e.html#31 Social Security Confronts IT
Obsolescence
http://www.garlic.com/~lynn/2011e.html#35 junking CKD; was Social Security
Confronts IT Obsolescence
http://www.garlic.com/~lynn/2011e.html#37 junking CKD; was Social Security
Confronts IT Obsolescence
bi...@mainstar.com (Bill Fairchild) writes:
It was. ECKD was announced in the early- to mid-80s, which was 25+
years ago, which is several decades ago. Not all users respond
quickly.
as expected ... they were using eckd ... and just not bothering to
fully qualify ... since the transition
John Chase wrote:
Actually, it's favorite son operating system; as in most favored
or takes precedence over all others or gets all the attention.
Might also be an oblique reference to the dead Future System that
was to be the be all and end all of operating systems.
re:
r.skoru...@bremultibank.com.pl (R.S.) writes:
SSA? It's obsoleted by FC and SAS. Even IBM don't use SSA anymore.
(sorry couldn't resist) ;-)
old post about 9333/Harrier (serial copper) turning into SSA. I had
been working on getting them to turn into FCS (fiber channel standard)
compatibility
bi...@mainstar.com (Bill Fairchild) writes:
It was. ECKD was announced in the early- to mid-80s, which was 25+
years ago, which is several decades ago. Not all users respond
quickly.
re:
http://www.garlic.com/~lynn/2011e.html#31 Social Security Confronts IT
Obsolescence
oh, the missing
bi...@mainstar.com (Bill Fairchild) writes:
Lynn,
I signed in to LinkedIn and was unable to find the reference, so
thanks for including the URL for the missing LinkedIn reference. I
read through that reference and saw 16 comments, only one of which
mentioned very bad throughput for CKD
ps2...@yahoo.com (Ed Gould) writes:
Lyn:
I bow to your expertize and have not read your paper on the 3725.
My sort of well lets say home grown experience with trial and error (sigh a
lot
of errorr).
Gut instinct said the limiting factor was the byte channel (which I
understood)
was
ps2...@yahoo.com (Ed Gould) writes:
Thanks...
My memory seemed too jump when I saw QBE... I think that was it.
THE BIG block letters on the screen were QBE.
I do not know How I ever forgot those initials but I did.
Now onto QBE. Was it iBM code or an IUP or ... . A quick google says it
l...@garlic.com (Anne Lynn Wheeler) writes:
System/R reunion discussion of SQL/DS mentions that massive EAGLE
project in STL kept attention away from RDBMS ... allowing System/R to
get out as SQL/DS
http://www.mcjones.org/System_R/SQL_Reunion_95/sqlr95-SQL_DS.html
quote from above
hmerr...@jackhenry.com (Hal Merritt) writes:
I seem to recall working on a product called SLR (Service Level
Reporter). My (very poor) memory is of databases that looked a lot
like those later introduced by DB2.
re:
http://www.garlic.com/~lynn/~lynn/2011d.html#52 Maybe off topic
ps2...@yahoo.com (Ed Gould) writes:
I was reading some article today about IBM DB2 today. I think it
said something like DB2 was IBM's real first try into relational
databases. My memory is foggy here something in the back of my mind
says that is not quite correct. Back in the 70's (?) I
Allodoxaphobia knock_yourself_...@example.net writes:
There are a number of anecdotal stories about companies taking the
covers off and sending them to a paint shop to achieve their own
corporate color scheme.
the science center had five 2314 8drive strings and one 2314 5drive
string ...
ps2...@yahoo.com (Ed Gould) writes:
I cannot remember where my first run in with VSE was. It was a LONG
time ago. Probably im the mid 70's (???). I think it was in St Louis
at an IBM school there.We were trying to set up a 4331 for our New
York Office. It was either there or out in the LA IBM
charl...@mcn.org (Charles Mills) writes:
Last one that I wrote was in about 1990. Anyone remember SNA? g
There are several 3270 vendors around. Some of the emulators have a macro
capability.
internal parasite/story predated ibm/pc and relied on vm370 psuedo
device and passthru virtual machine
paulgboul...@aim.com (Paul Gilmartin) writes:
Long ago, circa MVS 3.8 without GRS, in our little lab we got
sporadic deadlocks when one job allocated SYSLIB on VOL001,
SYSLMOD on VOL002, and another allocated SYSLIB on VOL002,
SYSLMOD on VOL001.
long ago and far away ... discussion of the ACP
shmuel+ibm-m...@patriot.net (Shmuel Metz , Seymour J.) writes:
No. None of his scenarios involved concurrent updates. The danger
comes from scenarios other than the ones he presented. Of course, the
ABEND S213 will prevent corruption of the directory in that case.
for a long time, CKD disks
frank.swarbr...@efirstbank.com (Frank Swarbrick) writes:
Or COBOL! Or Pascal.
there are large number of characteristics of C language that result in
programmers tending to shoot themselves in the foot ... that are not
there in other languages.
the original mainframe tcp/ip implementation had
afg0...@videotron.ca (Andreas F. Geissbuehler) writes:
I believe you once posted / answered a post about digitizing old hardcopy
manuals. I have some 30 volumes 1980..1995 vintage, about 8'000 BW pages to
convert to PDF.
bitsavers is somewhat ad-hoc ... although they do have software that
popular press has people using less than 5% of their brains. there has
been extensive advances in knowledge of the brain over the last decade
from MRI studies. recent book discussing structure in some detail
(also available on kindle)
m42tom-ibmm...@yahoo.com (Tom Marchant) writes:
Bold assertion. Do you have any data to back that up?
360 allowed self-modifying instruction ... potentially instructions
already in the pipeline. one of the claims for Amdahl macro-code was
that it was essentially 370 with some tweaks ...
m42tom-ibmm...@yahoo.com (Tom Marchant) writes:
Dr. Amdahl was the chief architect of the System/360. He left IBM
and started Amdahl corporation because he wanted to extend the
series with a higher performance processor and IBM did not think that
it would be marketable. And BTW, it was
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