test-drb April 2002

test-drb@ccmp.vtda.org

280 participants
1162 discussions

by tim＠snowgoons.fsnet.co.uk

>From: "Richard Erlacher" <edick(a)idcomm.com> >Date: Mon Apr 15, 2002 03:45:30 am Europe/London > >> Actually, I can see one way that there could be a benefit from >> using TTL.... >> >> The current advances in processor speed have come largely from just >> increasing the clock rate. There haven't been any major changes in CPU >> design to use those clock cylces more efficiently.... > >That's only a small part of the acceleration. The use of multiple piplelines >accounts for much of the performance increase along with increased >datapath width, and other little features. The gradual increase in interest in >parallelism is also going to help quite a bit, so we'll be seeing even more >pipelines in the future. > >> But somebody stuck with old, slow, TTL, just might hit on some way to get >> more performance out of it (because it's all they've got, and they need >> the performnce). The trick they discover just might also be useful to >> speed up ASICs (or FPGAs, or ...) >> >And just exactly HOW would they extract more performance from it? A new >architecture would require new software, both in development tools >and in OS and as applications. Just verifying that their innovation would >take several hundred lifetimes, and the generation of a full set of software >would take that one individual working alone, until well after the next big-bang. I've been keeping out of this conversation so far 'cos I'm not qualified to comment on much of it <grin>, but this statement strikes me as just being Plain Wrong. Your own example of pipelines is a perfectly good example of something which could easily have been invented by someone in their back room building a processor out of TTL. OK, the resultant processor would not be commercially viable, but it would serve perfectly well to demonstrate the theoretical concept and a practical embodiment of it. Enough for the patent application you'd file before taking it to Intel to commercialise, for example! The argument that anyone interested in new architectures is wasting their time ('mentally masturbating' as you so delicately put it,) is entirely specious IMHO. The first stage is always proof of concept, commercialisation is an entirely different game. I doubt the researchers on quantum computers are going to give up and go home because the first devices they produce are the size of a room, require liquid nitrogen to run and - heaven forfend - don't run Windows 2000 or Microsoft Office. If a new architecture offers significant enough benefits, the software support and everything else necessary to capitalise on it will follow. Cheers, Tim. -- Tim Walls at home in Croydon - Reply to tim(a)snowgoons.fsnet.co.uk

22 years, 3 months

OT Letting it go (was Re: The CommodoreOne is near!)

by acme_ent＠bellsouth.net

> From: Christopher Smith <csmith(a)amdocs.com> > > From: John Chris Wren [mailto:jcwren@jcwren.com] > > > But then, one thing I have noticed about the list, > > besides being an > > excellent wealth of information and intelligent people, is > > that some don't > > know when to let something end. > > You can count me in that category. I wonder whether it's typical > of the kind of person you'd find on this list? > > As a general observation, technical types tend to push things > further than most people appreciate in several cases. > > Chris That's because we want to be *right.* It took me a long time to learn that I'd rather be happy than right. Glen 0/0

22 years, 3 months

Calcomp Ethernet Adapter M971L - Volunteer repair/Anybody got one spare?

by Arno_1983＠gmx.de

So this is going into the third - and, hopefully, last - turn. We had concluded that there is something wrong with the Ethernet adapter on our Calcomp CCL 600 ES laser printer. Now it's even worse - the printer locks up when the interface is installed and does no longer react to its front-panel buttons (On/Offline etc.) On the NIC, the lights for IP and DATA stay lit as long as the printer is on. We don't have the time and the knowledge here to start trying to repair that board, so we hope that somebody out there on the list might throw one in (pref. for shipping costs or little money, but place your prices), or does anybody feel like trying to repair it? Shipping would be from/to Nuremberg, Germany; or, if exchange at the VCF Europe in Munich is possible, I'll show up there and handle things. I'm on digest mode and have no Inet on the weekend, so my answers will be delayed a bit. Thanx in advance Arno Kletzander Arno_1983(a)gmx.de -- GMX - Die Kommunikationsplattform im Internet. http://www.gmx.net

22 years, 3 months

Looking for info on an HP-IB cable

by fmc＠reanimators.org

Dan Veeneman <dan(a)ekoan.com> wrote: > I recently picked up an HP-IB cable, made by HP, with a > part number of 12009-60015. One end is an HP-IB connector > and the other end is a 15-pin card edge. > > Any ideas what device this cable connects to on the card edge end? A 12009A card, which is an HP-IB interface for L/XL/A-series HP 1000 computers. -Frank McConnell

22 years, 3 months

A2065 Ethernet

by ghldbrd＠ccp.com

I picked up a PCI ethernet card today that is both 10 Base T and 10 Base 2 outputs. Now I will have a crash (bad term) course in networking, especially across different platforms. I'm wondering if this card is capable of using both outputs at once; i.e. base 2 to my Amiga Etherrnet and base T to a cable modem or hub. If it is an exclusive OR situation, I guess I'll have to get another NIC for another input/output. If all else fails, then I put Linux in the Amiga . . . . . Gary Hildebrand St. Joseph, MO

22 years, 3 months

Download CD images for RSX-11 and RT-11 Freeware CDs from Tim Shoppa

by jhfinepw4z＠compsys.to

>"William R. Buckley" wrote: > Over the past year, I have sent several messages to Tim Shoppa > requesting a set of CD ROMs containing the offerings of his at > the web site, metalab.unc.edu, yet to date I have not received > the requested material. I have also sent email to Tom directly > but, he has not answered. Is there some extenuating circumstance > of which others on this list are more familiar than I? > William R. Buckley, Director Emeritus > International Core Wars Society Jerome Fine replies: It took a week of trying, but I have finally downloaded all three CD images for RSX-11 and RT-11 from: ftp://ftp.trailing-edge.com/pub/cd-images/ Note also that the file MD5SUMS seems to contain checksum values, but I don't know how to use these values or produce them myself to check if my files are correct. Can anyone help? The best time seems to be at night. Please realize that these are 650 MByte files and will take many hours in most cases, let alone a whole day (or three) if you do not have a high speed connection like DSL. Sincerely yours, Jerome Fine -- If you attempted to send a reply and the original e-mail address has been discontinued due a high volume of junk e-mail, then the semi-permanent e-mail address can be obtained by replacing the four characters preceding the 'at' with the four digits of the current year.

22 years, 3 months

The CommodoreOne is near!

by csmith＠amdocs.com

> -----Original Message----- > From: James B. DiGriz [mailto:jbdigriz@dragonsweb.org] > > Um, I think this is getting pretty bad. [...] > Chris, no offense, but get a grip. I'm kicking myself for > leaving room > for any unintentional humor in my comment, but maybe people > are reading > things into this thread that just aren't necessarily there? Perhaps -- I think you're reading more into my comment than was necessarily there. :) (Given that you stripped the entire qualifying couple of paragraphs out...) I have no problem with your comment, myself, or others' comments for the most part. I was only implying that I think we should try not to offend most people too much. Of course it won't always work, but such is life. In other words, Dave and Sridhar can say whatever they like one to the other, all in jest, and it can be understood as such. No problem. It's not so good when the target of the jest, or even a third party -- JCW in this case -- can misunderstand that jest to be disrespect. Anyway, I, for one, wouldn't want somebody making inflatable likenesses of myself... ;) > That's a big > problem with humor, why it is unprofessional and should be avoided in > the workplace, and why I should have proofed myself better. I think that's a bit too general. Certainly there's nothing you could possibly say that wouldn't offend _somebody_. > How about we just drop this whole subject? Hmm -- Ok. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 3 months

ALU IC information?

by BFeely＠aol.com

I am trying desperately to find a datasheet for the obsolete semiconductor 74F582. All I know is that it is a 4-bit ALU. I would appreciate it if someone could possibly e-mail me a copy. It would even be good if it was another 7400 logic type, as all the families have the same functions.

22 years, 3 months

cure equiepement that was in the rain... best practices???

by dquebbeman＠acm.org

> On Mon, 15 Apr 2002, Dave McGuire wrote: > > > TLC it performs flawlessly). The water doesn't seem to do any harm at > > all, even with long-term exposure...it's the crap that the water can > > carry into the equipment, and sometimes corrosion later on. > > So what can you do with accumulated mineal salts around component > legs? Looks like tin "rust". I tried firm-but-gentle with a stiff > toothbrush, and didn't get anywhere. > > I have that MV3100-90 board that I think just needs the corrosion, > which I suspect is conductive, removed. Using a small area of the board where you could correct any damage that this substance might cause, try a little CLR... it's a mixture sold throughout the midwest (U.S.) that dissolves Calcium, Lime, and Rust deposits. Phosphoric acid is one of its components... so be real careful. I've never used it on PC boards before, but it can't be beaten for removing corrosion off metal parts. Regards, -dq -Douglas Hurst Quebbeman (DougQ at ixnayamspayIgLou.com) [Call me "Doug"] Surgically excise the pig-latin from my e-mail address in order to reply "The large print giveth, and the small print taketh away." -Tom Waits

22 years, 3 months

OS/2 running under VMWare, or other emulator for Windoze

by csmith＠amdocs.com

> -----Original Message----- > From: Sridhar the POWERful [mailto:vance@ikickass.org] > Bochs is not a good idea on that machine. Bochs is meant to run on > non-PC's and it's a complete PC emulator. What he wants is > Plex86, which > is the system virtualization stuff from Bochs, with none of the PC > emulation stuff. He already has all that. Last I heard, Plex86 was still in the "concept only" stage. Is that information outdated, then? Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 3 months

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test-drb April 2002