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So what is it that drives this industry was: A 40 Mb drive
Wet" chemists? Probably because this isn't the group of choice for people who enjoy delving into the recent history of materials science and the like. If you see that as a deficiency, feel free to...
Statistical data about first years of usenet traffic
Please pardon this intrusion. I've been ego-grepping on Google recently, mainly to see whether I'm remembered on a group I dropped some while back. (Also because it's much the most efficient way to...
IBM's last tabulator last unitrecord punch card machine
I was wondering when IBM manufactured its last EAM-tab-unit record punch card machine. My guess is the early 1960s...
IBM's last tabulator last unitrecord punch card machine 477
This has been noted in other sources as well. Of course, I suspect that other factors contributed to some of the popularity of the IBM 1401, but the 1403 printer definitely allowed it to offer...
1403 printers was: IBM's last tabulator last unitrecord punch card machine
John Savard of basically and At the university I was at, we had two 1403-N1 printers which were used for all University business and student programming buttignments. One was reserved for students; one...
1403 printers was: IBM's last tabulator last unitrecord punch card machine 479
Swapping My first employer used a 48 char 1403 which handled the 1401 character set. However...
1403 printers 480
the 6670-etc were ibm copier3 with computer interface to drive them. they could be used out in deparmental areas, local stock rooms, etc. among other things...
1403 printers 481
Rich Alderson Siemens had a 2500 Offline Laser Printer, my manual is dated September 1977, that...
1403 printers was: IBM's last tabulator last unitrecord punch card machine 482
Yep, 6670 output was beautiful, but still somewhat limited. The 6670 was still basically a character printer; it could print characters from a...
1403 printers was: IBM's last tabulator last unitrecord punch card machine 483
Hi, Sam...long time no hear. H'mmm...I dug up an ancient user's guide from my PPOE (this copy from several years after I left) and found the GN character set listing: ABCDEFGHIJKLMNOPQRSTUVWXYZ This is...
1403 printers was: IBM's last tabulator last unitrecord punch card machine 484
Allodoxaphobia existed An The big design point of the 1403 printer (S-360 history by Pugh et al) was that veritical misalignments were very noticeable while horizontal were not. I always hated documents printed...
IBM's last tabulator last unitrecord punch card machine 485
SNIP I can't answer when the last IBM tabulator rolled off of the production line, but I do remember that the company where I started and trained as a computer programmer in 1973(?) in...
IBM's last tabulator last unitrecord punch card machine 486
On the subject of 1900's: A long, long time ago (late 1975-early 1976...
NORC: Multiplying By Each Digit
I noted in a recent post that one way to speed up an arithmetic unit was used by an early computer: one of the two terms in...
NORC: Multiplying By Each Digit
When NORC was built there weren't many other computers in existence. But the idea of being the fastest of what...
ICL 1901 A
I have noticed that in TP4999-1, there is one page in the table of contents which seems to have a...
IBM's last tabulator last unitrecord punch card machine See Msg body
I was in the last clbutt in the USAF to be trained on the 407. Our final included an interface with a 513 Summary Punch. IBM was still making the 029 & 059 punches and...
A practical use for old system emulators
I responded to a request for help on data formats used on ICL 1900 systems by the Population Studies Centre, University of Pennsylvania for The problem was that they had a set...
The DDP 24 FloatingPoint Format, and Others
Finally, I found out what the floating-point format of the DDP-24 was; it...
1401S, 1470 "last gasp" computers 493
Tim Shoppa I think the differences were that the 1401-S and 1470 would've been direct compebreastion to S-360 models 30...
1401S, 1470 "last gasp" computers 494
The 1622 was a card reader-punch unit for the IBM 1620. The plotter I worked with wasn't an IBM product; it was a Calcomp...
IBM 1130 495
Mmm...the 1130. We had one when I was in college. It used to be the major student computer for running Fortran (Fortran II) - but that was way before I got there in 1977. By...
IBM 1130 496
We had 2 at the Cooper Union, but after a while I combined the best of both...
IBM 1130 497
I have never seen a roll-fed 2741. The ones we used at MIT on CTSS, Multics, and CP-CMS in the mid to late 60s used fan...
IBM 1130 498
One technical reason is that I don't think ROM was yet available (other than diode-arrays or bed-of-nails for a punched card). The other is that...
1401S, 1470 "last gasp" computers 499
David Wade Fortran that I was told it was "Fortran II". I didn't like it since I was used used to logical IF statements and 1130 Fortran required the older arithmetic...
1401S, 1470 "last gasp" computers Summary: 1130 was nice
I used and maintained an IBM system 1130 in college and I don't recall ANY mention of 1620 for legacy code, porting or conversions...
Moving buttembler programs above the line 501
Original APL was apl-360 out of the phili science center. some people at the...
Moving buttembler programs above the line 502
not really highlighted was that most of the early APLs ... up until cms-apl (and then apl-cms) typically offered 16-32kbyte workspaces ... apl-360 "service" offered by the philly science...
Moving buttembler programs above the line 503
an earlier part of the HONE cms-apl experience was making (and then apl-cms) was making the APL intepreter part of shared code (so you didn't need a unique copy resident in each address...
Moving buttembler programs above the line 504
On Mon, 25 Apr 2005 14:06:22 -0600, Anne & Lynn Wheeler We (Atlanta Public Schools) were running APL-360 under DOS on a 360-40 in 1968. As a HS student it was my...
Moving buttembler programs above the line 505
in the late '70s, there was the scenerio of some of the dasd testcell regression programs being modified to run under mvs ... however they found that...
Moving buttembler programs above the line 506
some of those details ... TSS-360 was the "official" system for 360-67 ... while cp67 was...
Moving buttembler programs above the line 507
re: sorry, fingerslip ... mft to vs1 ... MVT to svs (not mft to svs). note however the very next paragraph did get it right I remember...
Moving buttembler programs above the line 508
note that this was further aggrevated by smp support. the gimick with allowing cms with shared segments to be run with the 158-168 microcode buttist ... effectively involved the ruse that...
Moving buttembler programs above the line 509
virtual storage constraint (way back in 70s) was the 16mbyte addressing was being totally eaten up by system stuff. seperate address spaces can help with fault isolation and recovery strategies. the basic (virtual storage constraint...
Moving buttembler programs above the line 510
Test&Set atomic instruction was available on 360 ... basically for multiprocessor locking-syncronization ... 360-65 MPs and 360-67 MPs. 360-67 was the only 360 with virtual memory support ... very similar...
Moving buttembler programs above the line 511
another aspect is that the 360 genre was pretty much pointer pbutting ... as opposed to value...
Moving buttembler programs above the line 512
Eric Most OSes have taken the notion that the old small-address-space world and the new big-address...
Software for IBM 36030 was DOS360: Forty years 513
Eric Smith Why couldn't it be more than 64k? Was that all the30 could hold? I would presume at least 128. Our 40 could...
Software for IBM 36030 was DOS360: Forty years 514
Joe Morris RPQ? No. This happened in 1977 and our machine was a 3rd-party owned lease, though we did contract to IBM for maintenance. They (I think the leasing company...
Software for IBM 36030 was DOS360: Forty years 515
Can't be either one: neither the F or D versions of the COBOL compiler were ever...
Software for IBM 36030 was DOS360: Forty years 516
Joe Morris It's been a long time, but my recollection was that the "better" COBOL compiler was rented for a nominal fee from...
Software for IBM 36030 was DOS360: Forty years 517
OK; if it's after New World the rules change for newly-introduced products. Do you recall the product number? If it was something looking...
Software for IBM 36030 was DOS360: Forty years 518
Joe Morris I don't remember the number. FWIW, is there a breakdown to the following? PP 5688-197 IBM COBOL for...
Software for IBM 36030
as part of doing some work for the disk engineering lab (building a crash proof operating system that could concurrently operate-test multiple testcells under development): found an idiosyncracy built into controllers...
Software for IBM 36030 was DOS360: Forty years 520
Rob Warnock This somewhat reminds me (not surprisingly, I guess, considering the genealogy) of the Honeywell H-200. I think I still remember some of...
Software for IBM 36030 was DOS360: Forty years 521
50 years is not the original law, which goes back to 1790 in the U.S...
IBM 360 channel buttignments was Software for IBM 36030
Recall that there are three hex digits in an I-O device address for the S-360 and S-370 architecture. The first...
IBM 360 channel buttignments 523
byte multiplexor typically were unit record or telecommunication controllers. byte multiplexor could interleave multiple concurrent streams simultaneously. when we were doing the telecommunication...
IBM 360 channel buttignments 524
Rob Warnock small-but-useful byte better to this for 3380 drives, they introduced data streaming. selector & byte multiplexor had...
Software for IBM 36030 was DOS360: Forty years 525
Joe Morris i thot i usually the whole machine room to myself on the weekend ... but one weekend i got pre-empted because the ibm se and one of the...
Software for IBM 36030 was DOS360: Forty years 526
You're thinking of the 7330-2415 designs. The 729, 240x, and 34xx drives diffrentiated between REW and RUN only in what happened when the load point was reached; rewind speed was controlled by a photocell that...
DOS360: Forty years 527
I've heard that it is possible to squeeze a useable Linux or FreeBSD install onto a single HD floppy which can be booted, but...
DOS360: Forty years 528
Certainly the CPUs are very much faster than the old S-360. However, IMHO, the PC hardware remains inferior to S-360. The big difference is...
DOS360: Forty years 529
here is 145 (although not very good closeup of front panel) and 148 from the "mainframe photo album" some 370 machine characteristics 370 announce & shiip dates note in the above ... there...
DOS360: Forty years 530
customer) 145s had DAT from day 1 ... but it wasn't enabled until virtual memory was announce (at which time, the 145s got new microcode loads to enable virtual...