waashk/20ng huggingface dataset:
Well, here are the results of the Mathematica test which I posted to this newsgroup.  The "test" was the following command:  >Plot3D[((-2*9000)/(2*3.1416*((x-5000)^2+(y-8000)^2+ >81000000)^1.5))+((-3*9000)/(2*3.1416*((x-10000)^2+ >(y-1000)^2+81000000)^1.5))+((4*2000)/(2*3.1416* >((x-7000)^2+(y-10000)^2+4000000)^1.5)), >{x,-5500,19500},{y,-5500,19500},PlotPoints->50]   I was just curious how fast the plot command would be executed on various Macintosh machines as well as other personal computers and workstations.  The results are posted below:  Machine		System		Math vers.	# of trials	time, min  PB 170		7.0.0 with	2.1		2		2:08 		tuneup/8MB 		RAM/5MB for 		Mathematica  DEC 5000	Ultrix v4.2a	2.1 for		1		0:25 		DEC RISC	 					 IIsi		7.1/cache@96MB	1.2f33Enh.	1		4:30 		25MHz/5MB RAM/ 		3MB for Math./ 		w/ 68882  C650		7.1/8MB RAM			2		0:32  Q800		8MB/Cache@384/	1.2				1:01 		4MB for Math.	  Sparc		SunOS4.1.3					0:14 Station		40MB RAM  SGI Iris/4D	R3000 RISC					<0:01 		processor 		version  Sparc		SunOS4.1.2	2.1 				0:26 Station2  IIsi		7.1						3:15  NeXT		NeXTSTEP 2.1	1.2				2:38 Cube		68030 based/ 		w/ coprocessor	  NeXT		NeXTSTEP 3.0	1.2		5(ave)		0:52 Cube		68040/25MHz/ 		20 MB RAM  IIsi		17MB/8MB for	2.102 Enha			3:15 		Math.			 		w/ 68882  NeXT		16MB RAM/			1 		0:37 		25 MHz 040/ 		Workspace 		Manager 2.1  Funny how the IIsi running at 25 MHz is slower than other equivalent machines, lots slower in fact.  Perhaps the version of Mathematica makes a difference or the fact that not much RAM was allocated. Another interesting thing is how fast the SGI did it.  Wow.   Basically, though, I wouldn't draw any conclusions from this data.  It seems that Mathematica's speed is dependant on a lot of variables.  I was just curious how different machines would measure up.    Well, if you have any questions or if I forgot something, just drop me a line at "cmmiller@iastate.edu".    Chad
In article <1993Apr15.182206.12714@reed.edu> especkma@reed.edu (Erik. A Speckman) writes:  >In the MacUser article on the new centris and quadra machines mentioned >that the C650 and the Q800, and not the C610, had ROM accelerated video. > >What is it?  I don't recall seeing it in Dale Adams post.
Excerpts from netnews.comp.sys.mac.misc: 5-Apr-93 Re: HELP INSTALL RAM ON CEN.. by Jason Harvey Titus@farad  > From: jht9e@faraday.clas.Virginia.EDU (Jason Harvey Titus) > Subject: Re: HELP INSTALL RAM ON CENTRIS 610 > Date: Mon, 5 Apr 1993 20:05:51 GMT >   >         I had asked everyone about problems installing a 4 meg > simm and an 8 meg simm in my Centris 610, but the folks at the > local Apple store called the folks in Cupertino and found that > you can't have simms of different speeds in one machine, even > if they are both fast enough - ie - My 80 ns 8 meg and 60ns 4 > meg simms were incompatibable...  Just thought people might > want to know..... >                                         Jason.    oh boy am i confused, I thought the entire point of the 72 pin simms was that you could use diffrent size simms so you could avoid having to use sets.  all horror stories not withstanding.
In article <h01sav.dsyibm.desy.de-230493200218@michael.desy.de>   h01sav.dsyibm.desy.de (Michael M. Savitski) writes: > Hi, there! > I have a MAC LC and consider buying CD300. I've been told, > however, that: > 1. The double speed of CD300 is achievable only on machines >    with SCSI-2.  Wrong, the CD300 (external) is just a plain ol' SCSI device.  > 2. The double speed is a prerequisite for PhotoCD multisession >    capability, which I need.  No, multisession capability and double speed are two different thing.  Its just   that the newer CD ROM drives have both capability.  Multisession means that   when you put more pictures on a photo CD after the first session, the drive can   read and display them.  Double speeds just transfer ANY type of data (excluding   sound) at around double the speed.  > 3. Which means I seem to gain nothing compared with, say CD150.   CD150 is not multisession capable.  This means that you lose the ability to add   any more pictures after the first time (must buy a new CD).  Finally, since the   CD150 is not a double speed drive, it will require twice as long to transfer   data (excluding sound).
>> I am working a  data acquisition and analysis program to collect data >> from insect sensory organs. >> Another alternative is the use of the sound input port. > >Can you really make due with the non-existent dynamic range of an 8-bit >converter, of probably dubious linearity and monotonicity, and perhaps >AC-coupled as well?  It would depend on the requirements of the poster's data, for some purposes 1/256 resolution (with or without calibration curve).   Otherwise the other possibilities would be:  1) get a digital voltameter with serial output & connect to serial port on mac, collect data with some communications program.  2) Buy an A/D chip from Analog devices, Burr-Brown, etc, connect to a parallel to serial converter, use serial port for acquisition (nah. too much soldering and trouble shooting :-)  3) Get a board from National Instruments, Data Translation, Omega, etal.  The finest solution, but possibly the most costly.    To the original poster:  if the signal is too large, why not use a voltage divider? Two resistors, cost very cheap... --
I have an old Mac Plus. A couple of years ago I bought a shiney new lc. It came with apple's new keyboard (with abd ports). i replaced it with a mac-pro-plus extended keyboard (which i thoroughly enjoy, thank you very much).   well, i have this extra keyboard which i would like to use on the plus but there's a little problem. the plus uses an rj-11 jack for keyboard input and the new keyboards don't. i got an extra adb cable from my local apple dealer (they're such nice people), but they couldn't tell me the order of the wires.   there are four wires in the adb cables: black, white, red, tan. I know one's a ground, one gets the serial signal, one supplies 5 volts, and i forgot what the fourth one does. anyway, if you hook them up wrong you'll fry a board and i <really> don't want to do <that>.   if any brave souls out there have done this before, please e-mail your experience directly to me. i would greatly appreciate it especially since apple's original keyboard is not . . . ergonomically correct.   btw, i did take apart my new keyboard to see if i could find the correlation between the wires for the rj-11 jack and the adb since it has both, but no such luck (the connections are soldered inside of little boxes). Oh, well . . .   one more thing: in case you are thinking that the ABD ports on the newer models are different from the connection used on the plus--- you're right. however, you can use the telephone cable from the plus and connect the mac-pro-plus keyboard via its own rj-11 jack. in other words, this little engineering feat i wish to do *is* possible. it's merely a matter of finding out the correct order.   omt, when i get this to work, i definitely will post the solution so others can, too. thanx for the input.
In article <1993Apr10.210242.340@macadam.com>, mike@macadam.com writes: |> I am a freshman in college and can't decide whether to major in computer   |> engineering or computer science.  Any advice or suggestions will be   |> appreciated. |>  |> Thanks, |> Mike  A professor of mine once said "The difference between a Computer Engineer and a Computer Scientist is about $5000" meaning the Engineer makes $5000 more than the CS. Seriously though the main difference is that most CS people write programs that people will use, i.e. database, graphics, word processors, etc., while an engineer writes for machines or control systems, i.e. the "computer" in your car, a flight control system, computer controled devices, etc. In other words CS writes SOFTWARE while CSE writes FIRMWARE.  These are generalizations but for the most part that is what the difference is.
Hi folks  I'm planning to buy a LCIII but need advice on choosing a monitor. What do people recommend for a decent 14"/15" monitor?    I'v looked at some ads and the spec for NEC 4FG/4FGe and the price is  within my budget, but could LCIII be able to use the various resolutions  available on 4FG (specifically the 1024x768 resolution)? Does LCIII only  support one resolution?  Also any recommendations for a reliable mail order place for LCIII or monitors? Does anyone have experience with the following mail-order places?  	SYEX EXPRESS 	(Houston, Tx) 	USA FLEX 	(Bloomingdale, Il)  Thanks,  jeff
In article <carsona.734880998@sfu.ca>, carsona@fraser.sfu.ca (Debra Carson) writes:  >Would a virtual screen of larger size be of use to you? I have been >using Stepping Out v?.? for some time. It still is working now on a >PowerBook with System 7.1, minor problem with menubar icons at right edge.  What's the latest version of Stepping Out that works ok with S7.1?
We just received an AppleOne Color Scanner for our lab.  However, I am having trouble getting reasonable scanned output when printing  a scanned photo on a LaserWriter IIg. I have tried scanning at a  higher resolution and the display on the screen appears very nice.   However, the printed version is coming out ugly!    Is this due to the resolution capabilities of the printer?  Or are  there tricks involved to get better quality?   Or should we be  getting something (like PhotoShop) to "pretty up" the image? I will appreciate any suggestions.  Thanks in advance,  -Kris
In article <1pgifo$efb@msuinfo.cl.msu.edu> gary@ah3.cal.msu.edu writes: >As I said "I know a multisession CD-ROM is necessary if you do more photos..." >BUT what if it is just a writable CD-ROM drive and do a second "session" >do you need one for that too?  If you write a second time to a CD you need to have multi-session capability to read the second session.  Whether it is photos or just data or whatever.  Here is a simplified way of looking at it: The first session has the directory structure burned at some tracks.  The second session has a newer directory structure, but the first directory still exists, because you cannot change, only add.  So if you put that in a 'normal' drive and it will only look to the first directory and think it has found all data.  Multisession kindof means that the drive will look for the last directory written to the disc, older systems look only for 'the' directory, not taking multiple directories into account.
Any new reports about iisi clock upgrade to 25 mhz,  33 mhz? Any failures?
Hi- Does anyone out there know how I would get started on writing a device driver for the Apple CD300 CD-ROM drive, which *can* read audio CD formats out through the SCSI bus?
In article <mdavis.735319596@crash.cts.com> mdavis@crash.cts.com (Morgan Davis) writes:  >Last week's MacWEEK article by Ric Ford indicated that David Ramsey's >Mac IIx has been running nicely with a Mac IIci ROM in it, offering >clean 32-bit ROM code (liberating his IIx from the virtual memory >nightmare caused by Apple's 32-bit System Enabler).  [ This would make me a bit suspect of Mr. Ramsey's qualifications as a self-styled "expert", in fact, when I read about anybody using virtual memory regularly I kind of wonder ... ;-) ]  Yes, one can sometimes get away with running a newer ROM (of the  correct size, obviously) in an older machine, but one should be  prepared for problems if running software that checks for machine  type rather than ROM trap availability and then draws incorrect  conclusions when special-casing - especially timing-dependent and driver-related stuff.  In this particular case I see no reason to go to the trouble  of ROM-swapping.  The Apple 32-bit enabler has problems, but MODE32 works just fine with 7.0, 7.0.1, and 7.1.  >Does anyone know of a source for these ROMs?    Sure.  Buy a used IIci motherboard.  Call Pre-Owned Electronics, Shreve, or other parts dealers (see the back of Computer Shopper or one of the Mac trades for phone numbers) and ask for a price on a IIci ROM.  Everything has a price.  If you happen to find somebody who salvaged a IIci with a dead motherboard, you might get a decent price.  There is probably a market for used mother- boards as well, so they might sell a ROM anyway.  >Needless to say, I'm interested in purchasing such a ROM.  What would >be a reasonably price to offer?  Ask for a quote and then try offering less?  Pre-Owned and Shreve have been known to dicker.  Their ads in various trade magazines often list considerably different prices for the  same items, and their phone quotes tend to vary as well.  Still, I'm not aware of any technical reason for upgrading  the ROM in a IIx.
jebg9667@uxa.cso.uiuc.edu (Johann E. Beda) writes:  >Anyone have a price quote/vendor for the vx to centris 650 upgrade? >I've been quoted a price of $2401 till August 15th after which it will >cost $2732.  This of course doesn't include the trade-in rebate of >$1300 for the vx board.  Thus for $1101 one gets a Centris 650, 8 meg >onboard with both the FPU and Ethernet.  Anyone else have any info? >This price is from the University of Illinois micro-order center, are >there any other vendors who offer similar prices?      Falcon Microsystems of Landover MD, the sole Apple-authorized reseller to the federal government, has similar "open market" prices. The upgrade is too new to be on General Services Adminsitration schedule yet. 						Joe Gurman
I went to Staples in Framingham, MA, today, and grabbed the info-sheet on the 450 bundle.     For a mere $1897.00, you get:  -25 megahertz 68030 microprocessor -4M of RAM -120M hard disk -1.4M floppy disk drive -built in support for 256 colors, expandable to 32,000 colors -1 expansion slot -keyboard and mouse -14" display -0.29 mm dot pitch for extra-sharp text and graphics -640 x 480 pixels -microphone and speaker -Macintosh System 7 software for Performa computers version 7.1P -At Ease, Macintosh PC Exchange, and Quicktime software -Global Village Teleport fax/modem , send fax only  _Service and support 	-1 year limited warranty 	-1 year of in-home service 	-toll free help line support  -Pre-installed software: 	-WordPerfect Works 	-Best of ClickArt Collection 	-Touchbase 	-Datebook 	-Bestbooks 	-The Amereican Heritage Dictionary 	-Correct Grammar 	-Apple Special Edition of American Online with free trial membership 	-CheckFree electronic bill-payment software 	-Spectre Challenger 	-Scrabble  Editor's Note:  The spec sheet I have list's the microprocessor as a "38030",                 but I corrected that.  Didn't want to confuse anybody...
I was wondering if what many of you did to accelerate your IIsi's from 20 MHz to 25 Mhz (and beyond) can be done to a IIci (ie. from 25 MHz to 32-33 Mhz)?
>Yes, I know computers and harddisk drives should be ALWAYS on. But what about >monitors? They generate a lots of heat. Should I or shouldn't I keep them on >24 hours a day? Any advice? Thanks. Take care...Paul   I vote for turning them off at night.  THe stress of off/on is a little  harmful, so don't turn it off, then back on an hour later, etc, but turning them off for 4-5 hours or overnight is a good idea.  The electricy consumption will go down if you turn them off overnight, along with heat.
Can someone tell me which of the files that come with DW-3.1 go where and for what purpose?  What can be left out, for instance, if you don't want to do background printing?
Re: Methods for attaching heat sink to processor.  Go to Radio Shack and buy a tube of heat sink compound. It comes in a little blue and white tube with a black screw on cap.  At Radio Shack, it's catalog number 276-1372.  It's a mix of silicone and zinc oxide, and conducts heat very well.  Plus, it's tacky.
Hi, Terry. Its me again. I couldn't agree with you more. I finally received my Datadesk keyboard a month after sendng it to Datadesk to have it checked.  They didn't tell me over the phone that you had to wait before pressing the shift key to disable extensions. Actually, they did, but not until a day before my keyboard arrived. But a month earlier, they were of no help at all. I really think they need to put a disclaimer on their keyboard manual.
mmiller@garnet.msen.com (Marvin Miller) writes:  >My friend recently purchased a LC III and he wants to know if there is >such a demon called NuBus adapter for his PDS slot? CompUsa and >ComputerCity Supercenter says they don't carry them.  >Does this mean LC III is incapable of carrying a NuBus board?      Yes. That is exactly what it means. The LC family of Macs can only use PDS cards. They are not able to use NuBus.
A friend of mine who owns a pc said that he recently got a program that can format a disk that can exceed the normal capacity of a HD disk. Apparently it rewrites the driver or takes or the driver or _something_ that allows it get more space out of a normal HD floppy disk.  It supposedly gets upto 1.6 Megs (so something like 1640K?). I don't have the program - since I can't use it and its supposed to be called something like "FORM16" or something like that.  My question is whether its possible to do this on the Mac and if its not possible is it due to hardware limitations. A developer friend of mine said that it might be possible but he doesn't deal with this aspect of the field much.  Thanks for any information contributed.
Urgent help needed. Daughter has SE 30 and Imagewriter II. Worked well until yesterday. Now when she tries to print from Macwrite II or Acta the printing message comes on, but not printing! Bought new cable, still no printing. Moved cable to modem port, still no printing! I'm a DOS person and don't know where to begin. Are there diagnostics for a MAC?
I'm considering buying one of these to offload the internal video in my IIci and to get 24 bit color capability on my 13" monitor. What's the deal on them?  1) Do they come with varying amounts of RAM? If so, what is the max and min? How much do I need for 640 x 480 x 24 bits?  2) What bit depths are supported? One, 2, 4, 8, 16, and 24?  3) Are all these cards accelerated or just some? Is it true that modern accelerated video cards are (at least in general) faster? What bit depths are accelerated, all or just 24 bit? I've heard that some applications actually run *slower* with this card if they write directly to the screen (or something like that). Is this a frequent problem? How much slower is it?  4) Didn't I read (when System 7 first came out) that the card was incompatible? If so, how was this corrected (Finder patch, some INIT, or other)? Has it been kept compatible with 7.1? Are there many other apps that it is incompatible with (games or important (i.e., non- Microsloth) apps, for example)?  5) If you have a strong opinion on it's value for someone in my position, let me know what you think a reasonable price is to pay for it.  Thanks a lot for you input. Rick
In article <1qulhsINNm22@charnel.ecst.csuchico.edu> Steven Medley, smedley@ecst.csuchico.edu writes: >I am looking for a 8 meg 72-pin SIMM for my Centris 610.  Where is the >best place to purchase one (stock, shipping, warrenty), and if >possible, phone numbers so that I can order one as soon as possible.    Try Goldstar. They make them, and they are available immediately in Mac configurations. I ordered a pair from Computerland (8 meg variety) and they work like a charm. I've had them for two weeks.
In the bottom drawer I just found an old A+ mouse with a DB-9 (9-pin) plug. I assume that it belonged to a deceased Plus or something.   Could any simple modification turn it into a proper ADB mouse?  Reply by mail, preferably.  Thanks!
Just my luck.  I did however call my local Apple dealer and he said that the he thinks the serial numbers of the machines that are covered begin with either 70 or 53-56, and maybe one other.  He also told me that Apple had extended the service on these serial numbers for another year!!!    So there is still hope - Get those monitor in!!   jeffh@ludwig.cc.uoregon.edu (Jeff Hite ) writes: > In article <1993Apr15.183527.3365@guvax.acc.georgetown.edu>   > hew@guvax.acc.georgetown.edu writes: > > THere is a defect in the 13" hi-res monitors, bring it to a dealer and  > > they will replace the flyback for free, I think. > >  > >  > > 	I just heard of this problem at work today and we are fixing  > > them for free. > >  > >  > > 	________________ > > 	- / o r r >  > The service notice on the 13" hi-res monitors expired 3/23/93 after this   > date Apple will NOT reimburse service providers for the fix (replacement   > of the hi-voltage capacitor). All you folks that have been putting up with   > intermittant shutdowns without getting it to your service provider missed   > out on the freebie. It was in force for a year. If you got it free after   > 3/23, you got a deal... > Jeff Hite > Computing Center > U of Oregon > jeffh@ludwig.cc.uoregon.edu
For sale:  Mac IIfx with the following config -->  20MB's RAM 400MB 3.5" Hard Drive 2 -1.44MB floppy drives Extended keyboard Mouse Apple 8bit video card  $2,500.00 or best offer!  All you need is a monitor to complete this system.
In article <kluskens-190493142715@istari.nrl.navy.mil> Michael S Kluskens, kluskens@radar.nrl.navy.mil writes: >The problem mentioned last is a known Quadra SCSI problem, it was heavily >discussed last year and an Apple employee pointed out that there was a >one byte error in the SCSI driver routine for the Quadra's (at least the >700 >and 900).  System 7.1 should not have that problem, for most people the  >solution was to get an updated driver from the drive manufactor.  In my >case MASS Microsystems wrote a new driver which fixed the problem on my >Quadra >700, all that occured early last year.  Anyone know if there is an updated driver for Sony DAT drives?  I can't get mine to work with our 950 (see "Sony DAT / Retrospect Problems" posted in this group) but I'm also having problems with other new macs...  Cheers, Matt. -----------------------------------------------------------------------
Could someone please do one of the following: 1. Point to an init that allows me to turn off power management on my    Duo 210. 1. Write an init that would allow me to turn off ALL power management on    Duo 210. 2. Point me to documentation on power management so that I can write such    an init. 3. Explain to me why such an init is totally or partially impossible.  Ideally, of course, I would like to be able to turn in on and off on the fly.  Surely such an init would be very helpful to Powerbook owners who want to do MIDI... I cannot imagine why it is not possible to do, unless it requires Apple to divluge some secret. And if that is the case, the surely APPLE could write the init. (Unless Apple brings out new models so fast these days that even THEY don't know how they work).
Anyone know what would cause my IIcx to not turn on when I hit the keyboard switch?  The one in the back of the machine doesn't work either... The only way I can turn it on is to unplug the machine for a few minutes, then plug it back in and hit the power switch in the back immediately... Sometimes this doesn't even work for a long time...  I remember hearing about this problem a long time ago, and that a logic  board failure was mentioned as the source of the problem...is this true?
In article <2BC1F81D.20078@news.service.uci.edu> Wayne Chen, eapu174@orion.oac.uci.edu writes: > industry.  After all it does sound unfair to me for someone that has                                                        ^^^^^^^^ Oops, I meant fair, not unfair.
I've got a Racet 5.25" MO Drive with a Ricoh RO-5030E mechanism with the new ROMs... The thing is, I have a new TOSOH Optical Disk 512/bytes per sector cart for the thing that refuses to mount or be formatted... all the carts that I have for the drive that work are Racet Certified Media 512k/sector carts... All I can think of is that this TOSOH cart uses some kind of incompatible low level format... anyone know what software will allow this to be formatted on this drive? or a new DIP setting for the mechanism? I've tried just about every combination of drivers and custom formatting programs I can find with no luck... any ideas?
For those of you who have TI ps35 laser printers, if you want an envelope feeder, they are now on sale, direct from TI for the unbelievable price of $45! Call 1-800-847-2787.  Same for extra paper trays.  They have too many gray ones and want to move them out. Strange but true.  --The Bobmeister