First | Previous | Next | Last
|
The 8008 was: Blinky lights WAS: The SR71 Blackbird was designed ENTIRELYwith slide rules 704
distilled Well, I do understand having the water behind the prescription counter and, thus, controlled. I did not understand why I couldn't just walk up to the counter...
The 8008 was: Blinky lights WAS: The SR71 Blackbird was designed ENTIRELYwith slide rules 706
Interesting. My mom hung them outside. Other than the occasional birdstrike, they were fine. I would think the "scratchiness" has more to do with the water quality and whatever they were washed with. There's a...
The 8008 was: Blinky lights WAS: The SR71 Blackbird was designed ENTIRELYwith slide rules 707
Somebody emailed me a comment that the stuff I'm talking about is tabu on that other newsgroup. I'm going to start stripping...
The 8008 was: Blinky lights WAS: The SR71 Blackbird was designed ENTIRELYwith slide rules
Yeah, except that Grace Hopper did *not* make the log entry. The entry was made...
Blinky lights WAS: The SR71 Blackbird was designed ENTIRELY with 709
NASA DFRC didn't do technical reports on the mainframe, so ASCII and printers are irrelevant. NASA typed technical reports, as did the NACA. The typewriters, both manual and...
Blinky lights WAS: The SR71 Blackbird was designed ENTIRELY with
Hugh Gibbons One of the common attributes of being young is an (non-fact based) Of courseBAH's buttessment just might possibly maybe...
Blinky lights WAS: The SR71 Blackbird was designed ENTIRELY with 711
typed furiously: They are getting worse as the standard of education slips. The "gift" comes from...
Blinky lights WAS: The SR71 Blackbird was designed ENTIRELY with 712
That's the problem. Characters blur, too. Thus, words cannot stand out, especially if they're incorrect. Dammit...
Blinky lights WAS: The SR71 Blackbird was designed ENTIRELY with slide rules. fwd 713
Which computers do you mean? The featured computers used in The Time Tunnel (1966) came from and Voyage to the...
Blinky lights WAS: The SR71 Blackbird was designed ENTIRELY with slide rules. fwd 714
Beasts like the B6700 had a large panel of light used for debugging purposes. It showed the Burroughs B when the system was...
PDP8 FloatingPoint
Reading in the Introduction to Programming that 8K Fortran used a floating-point format different from the one used by the FPP-12 hardware floating-point add-on for the PDP-8 caused me to...
PDP8 FloatingPoint
CBFalconer ... snip ... Since an interest has been expressed, here are some quotations from the original source. ; ;-------------------------------- ; Floating point arithmetic system...
Significance Arithmetic and Unnormalization 717
On 22 May 2005 18:18:44 -0700, I wrote, in part: And here is something else I've turned up in my research...
Significance Arithmetic and Unnormalization 718
John Savard) wrote, in part: Another item I forgot to note: In addition to the F, G, and H formats on...
Reviving... the Bline
On my web page, at I describe a minimalist 32-bit instruction format to allow a bank of 64 ALUs...
The Philco 212
Some time ago, I had learned that the Philco 2000 computers used their index registers as pointer registers, rather than as misnamed base registers, because the selector bit changed the part of the instruction word...
Secure FTP on the Mainframe
There is an RFC about the problems converting FTP from arpanet (host protocol) to IP (internetworking protocol). Arpanet had a lot of similarities to JES2 networking...
Friday question: How far back is PLO instruction supported
and the precursor to PLO is compare-and-swap ... done by C.A.S. at the science center the first...
Development as Configuration
re: a little more SOA topic drift ... but one of the other SOA characteristics frequently is multi-tier architecture. Somewhat prior to starting ha-cmp...
Listserver for DFSMSHSM
official" list history of listserv listserv somewhat grew up on bitnet ... from a internal corporate precursor. the internal network was larger than arpanet-internet from...
Determining processor status without IPIs 725
Eric P. so the cp67-mvt and the vm370-vs1 scenario they had some additional information about the virtual guest...
Determining processor status without IPIs 726
glen herrmannsfeldt page fault handshaking ... where vm would try to reflect to vs1 operating system that vm was handling for the vs1 virtual machine ... under the buttumption that the...
Book on computer architecture for beginners 727
you can sort of tell when they switched to script. PoP has a lot of boxes for syntax and diagrams. Early versions were...
Book on computer architecture for beginners 728
I have some vague recollection of special train that printed sideways .. so top of page was at the side ... and multiple pages taped together ... not across the perferations ... but across the sides (after...
Widespread use of electric typewriters
I don't think daisy-wheel made Selectrics obsolete, but it did seem to penetrate more. The Selectrics were expensive, and I buttume there was a patent on...
Performance and Capacity Planning 730
however, the 370 two-processor afinity was not because of non-uniform memory access ... afinity was oriented towards 1) cache hit consistency ... constantly swtiching from one processor to another, could play havoc with cache hit...
Performance and Capacity Planning 731
ok, nominal 158 was nominally one mip machine based on various kinds of avg. workload mixes and...
Performance and Capacity Planning 732
Planning Wouldn't this also limit your SMP to two CPUs? I can't imagine three or four interfering with each other; nothing...
Performance and Capacity Planning 733
vamps ... which was a 5-way smp ... on a lower 370 model w-o cache put a lot of m'code ... sort of got that way. it was...
Performance and Capacity Planning 734
IIRC, the only reason JMF invented his spin lock is because KL caches were not write-thru and the...
Performance and Capacity Planning 735
all vamps processors ran identical microcode and instructions. in vamps, the global kernel lock metaphor ... just precluded more than one processor at...
Performance and Capacity Planning 736
the issue in cp67 was that all time was accounted for .... while in virtual machine...
Performance and Capacity Planning 737
re: when i was an undergraduate ... i did a lot of path rewrites of stuff that i thot would likely...
Performance and Capacity Planning 738
re: planning planning it was interesting period at the science center concurrently and-or overlapped ... i was...
Performance and Capacity Planning 739
before doing release 4 support for 158 & 168 (two-processor) smp, there were two other projects (that were never annonced), vamps (a 5-way smp ... implemented with lower level 370 processor that...
Performance and Capacity Planning 740
NUMA is non-uniform memory architecture. basically take a small CEC (say one to four processor board) with its own private memory. then create...
OT: Folk keyboard
Google lists 55 references to the Dvorak keyboard in this news group, so I hope this...
Folk keyboard 742
Once you get it running, Microsoft Keyboard Layout Creator should be pretty much self-explanatory. Examine the online Help to get started with it. You can use...
Folk keyboard 743
I can't really offer any useful opinion on that. I can only comment the technical side of things. :) Implementing...
Folk keyboard 744
Beats me where the keymaps are or what format they're in. I just know about the pre-canned keyboard layouts. I generally like...
Folk keyboard 745
FWIW... Before 1987, I did most of my work on keyboards similar to that of the...
Folk keyboard 746
Dennis Ritchie The evolution and pricing of terminals goes along with the use of micros in the '70s. At the start the only thing available was...
OT: Folk keyboard 748
Since you're sending this on alt.foklore.computers instead of alt.english.literature, I'd say these are BAD examples. Try your "improvment" on these examples instead: * APPEND(L1,L2...
OT: Folk keyboard 749
From the 704 manual on www.bitsavers.org, pp. 7-8: The two principal clbuttes of instructions are referred to as Types A and B. Figure 4 shows the form of a Type A instruction. Type...
OT: Folk keyboard 750
I must remind the original poster that the vast majority of the world's computers; somewhere between 98% and 99.8%, are programmed in binary...
NASA Discovers Space Spies From the 60's
NASA Discovers Space Spies From the 60's the project was never explained to me that way ... but what...
MIIS preservation
Hello all.. A number of historical operating systems are now available for hobbyist-non-commerical use: TOPS-10 and TOPS-20, OpenVMS, RSTS-E, OS-VS2 (MVS), VM-370, several versions of BSD...
IBM Plugs Big Iron to the College Crowd 753
SAA in the late 80s and early 90s was still trying to put the client-server genie back in...
IBM Plugs Big Iron to the College Crowd 754
that really isn't fair to akers. during the 80s, ibm was pouring huge amounts of money into universities and places like nsf projects ... with substantial productivity and...
IBM Plugs Big Iron to the College Crowd 755
there was the joke that (at one time) a significant percentage of ibm products originated at datacenters (both customer and internal) which were then handed over to "development" groups...
IBM Plugs Big Iron to the College Crowd 756
ref: note in the early 80s, ibm had formed "ACIS" ... which was told to hire a couple people to give away $lovem to universities. out of that ... IBM (equally with DEC...
IBM Plugs Big Iron to the College Crowd 757
the cp67 group was split off from the science center and morphed into vm370 group and took over the boston programming center on the 3rd floor (absorbing most of the people...
virtual 36067 support in cp67
the early cp67 releases just provided support for "regular" 360 virtual machines .... i.e. virtual machines with standard 360 real memory ... and did...
TSO replacement
from melinda's By the time we celebrated VM-370's tenth birthday at SHARE 59 in New Orleans...
IBMWatson autobiographythoughts on
This came up before, but I remain curious as to what people think of the autobiography...
IBMWatson autobiographythoughts on 761
i was told a story about one of the seven dwarfs (I think rca) giving testimony at the fed. gov...
IBMWatson autobiographythoughts on 762
Anne & Lynn Wheeler I wonder if compatibility was a big issue in the late 1950s. IBM didn't come up with until the early 1960s Spread conference. I believe part of the motivation was internal--IBM...