HDTenEightyP/NetNews huggingface dataset:
From: u2087546@ucsvc.ucs.unimelb.edu.au (The Jester)
Newsgroups: comp.sys.mac.hardware
Subject: Re: *LCII - AGAIN!*
Date: 14 Apr 92 07:30:19 GMT
Organization: Comedy Company

>   I have been using my new LC II for about 2 weeks and there are no
> surprises. Compared to an LC it is usually about the same speed, sometimes
> slightly faster. The virtual memory feature works, unlike the LC.
> Compared to my friend's IIsi, sometimes the LCII is slower,
> sometimes it is about the same speed, depending on whether the limiting
> factor is the processor or the data bus. The IIsi has a 32-bit data
> bus, but that only makes a difference when large chunks of data are going
> between the ROMs and the HD. The 20MHz processor of the IIsi is only
> slightly faster than the 16MHz processor of the LCII. For pure number
> crunching, the LCII and IIsi are almost equally fast/slow (16/20).
> The LCII has built-in 512K of VRAM, and I don't know how this compares
> to an IIsi in redraw speed. I have read that the IIsi uses ordinary RAM
> to support video, and some people deliberately put small RAM in the "B"
> slot of their IIsi to speed up the redraw speed. if anybody has some 
> hard numbers on this comparison I would be interested.
> 
>    I have had the usual problems -- some cdevs and inits conflict, causing
> the system to hang or crash. I have had to throw out a corrupted system
> and finder reinstall the system a couple of times when tring to load
> freeware/sharewae with unknown compatability. I have to turn off the
> virtual memory when running MIDI or Quicktime. The 32-bit addressing feature
> of system 7 obviously is unusable on the LCII. I have not found any
> situation where increasing the cache level improves performance.
> Still, the LCII is adequate for what I'm doing.
> 
> Dave

Your friend hasn't "tuned" his IIsi so that the video heap swaps from the main
RAM don't interfere too much. It's also obvious that the IIsi doesn't have the
FPU installed. With it, the "sheer number crunching" is increased by a factor
of 5.
I have a number of macs that I keep an eye on: II, IIx, IIcx, IIci, SE/30,
IIfx, IIsi, LC, LCII, Quadra 700.
I can tell you that the IIcx is considerably brisker than the LCII, and that
the IIsi is slightly faster than the IIcx.

****************************  DAMAGE INC. ********************************
Newsgroups: comp.sys.mac.hardware
From: Dr.Michael.Silverstein@discus.technion.ac.il
Subject: Re: How To Speed Up Video of Mac IIsi/IIci?
Organization: Materials Engineering, Technion
Date: 7 Apr 92 11:06:36 GMT

In article <1CE00001.vvt2sk@gla-aux.uucp> glenn@gla-aux.uucp (Glenn Austin)
writes:

>So -- put 1MB into Bank A and 16MB into Bank B and kick your RAM Cache up.
>This is the cheapest (and quickest) way to speed up your IIci...

I remember someone having a way to calculate what the ram cache should be given
that you have x in Bank A and y in Bank b (x<y) in order to best speed up the
macIIci with on board video...something like x-654k (?) (this could waste a lot
of memory if x is too large).

Anyone come across this rule? 

I presently have 1M in A and 4 in B and set the cahce to 384k....
From: artis@aplcomm.jhuapl.edu (David A. Artis)
Newsgroups: comp.sys.mac.hardware
Subject: SE/30 8-bit Video Card for Apple Monitor?
Date: 10 Apr 92 17:32:37 GMT
Reply-To: artis@aplcomm.jhuapl.edu (David A. Artis)
Organization: The Johns Hopkins University Applied Physics Laboratory

I plan at some point to purchase a video card for my SE/30 to
drive a color monitor.  I had a Radius Pivot at work and loved
it, but since this is MY money I have to be more frugal at home!
It looks like the Apple 13" monitor (at university discount) and
a 3rd party video card may be the best decision. 8-bit color
would be adequate for my purposes. Does anybody have a recommendation
for a good quality card for low $$ that would drive the Apple
monitor?  I'd appreciate Email, if possible, due to sporadic
news server problems.  Thanks.

David  Artis
Newsgroups: comp.sys.mac.hardware
From: potts@itl.itd.umich.edu (Paul Potts)
Subject: Re: SE/30 vs IIsi
Organization: Instructional Technology Laboratory, University of Michigan
Distribution: usa
Date: Tue, 14 Apr 92 16:56:09 GMT

In article <1992Apr14.001144.8791@panix.com> pkap@panix.com (Peter Kapner) writes:
>
>I have a IIsi with 9 megs of RAM and the disk cache set at 768k.  My
>girlfriend uses SE/30's at work for DTP, spreadsheets and word
>processing.  She's sure that the machines at work run faster than my
>IIsi.  The SE/30's external video is not accelerated, and with the
>IIsi even in 1 bit mode, she believes the SE/30's are faster.

I've got an SE/30 at home and it is definitely faster at doing long
compilations than the IIcx on my desk, even with less RAM and running
Virtual memory. I'm not quite certain why this is either. I'm not using
built-in video on the IIcx (there is none), but a two-page RasterOps
monochrome monitor. Maybe hard disk performance is an issue?

I *really* like the speed of the SE/30, even running System 7.
I haven't compared them with TuneUp either, but it feels faster doing
common things, and definitely builds THINK C projects faster.

 It is a great machine, and it
disappoints me that the Classic II/LC II, while great low-cost systems,
can't seem to approach the speed of the SE/30. The SE/30 was quite
expensive when it came out, but they can be had for decent prices now
on the used market; for some applications one might get better performance
per unit cost to acquire a used SE/30 than a new Classic II or LC II.
I''d love to try to put a two-page or color monitor card into
the SE/30 at some point to see if it still seems quick. The only big minus
with working on an SE/30 is the 9" screen.  


-- 
Paul Potts - potts@itl.itd.umich.edu
Un damne' descendant sans lampe,/ Au bord d'un gouffre dont l'odeur
Trahit l'humide profondeur,/ D'e'ternels escaliers sans rampe... 
   -Baudelaire on DOS/Windows programming
From: rdw89@ecs.soton.ac.uk (Richard Williams)
Newsgroups: comp.sys.mac.hardware
Subject: Re: NEC Multisync 4FG Monitor
Date: 6 Apr 92 16:02:30 GMT

In <1992Apr5.012850.2430@ux1.cso.uiuc.edu> tron@ux1.cso.uiuc.edu (Tron) writes:

>Does anyone know how good is the NEC 4FG monitor?
>How sharp is the text, and how well does it work with the Quadra?

>Thanks.
>Chuan


I bought a 4FG a few weeks ago, mainly for its multi-syncing capabilities
(which are great).  I would have thought it should work with the
Quadra - if you buy the NEC 'MacAdaptor' to correct the pinout.

As for sharpness, once you've used a Trinitron everything else looks
rubbish, to be honest.  The 19" Sony I'm looking at at the moment
is sharper than my 4FG...  You may be lucky - the focus of monitors
is very variable, and in the case of the 4FG the user can't alter
it. In addition the dot pitch of most monitors (incl. the 4FG) is .28mm,
while Trinitrons have .25mm dot pitch.

Lastly, I guess I'm just unlucky, but the 4FG's I've had seem to
have a problem.  At random time intervals the monitor made a sharp
'crack' noise and either blanked or munged the screen.  I returned
the first monitor to my dealer, but just yesterday the second monitor
did exactly the same thing!  And no, it's nothing to do with the
computer, the mains supply, the ventillation, the room temperature,
etc etc...

Apart from that I'm actually quite pleased with the 4FG - at 800x600
resolution it shows things about the same size as my 12" monochrome
monitor.  640x480 mode (ie what you'll get with the Quadra) gives
larger text than a standard Apple 13" colour - and at that resolution
the sharpness is just as good.  If you need to see big images there's
the 1024x768 mode, but text is too small for comfort...

Richard.
From: trimper@edsi.plexus.COM (Greg Trimper)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Grayscale on HP Deskwriter (not -C)?
Date: 6 Apr 92 21:04:51 GMT
Article-I.D.: edsi.1992Apr06.210451.12216
Organization: Enterprise Data Systems Incorporated, Appleton WI

davechao@bongo.cc.utexas.edu (David Chao) writes:

>I hung up, confused. I can understand how the new driver (or even the current
>DW-C driver) can give background printing capability, but how would a
>Deskwriter do grayscale? (other than in quickdraw patterns).

The same way that a LaserWriter or anyother monochrome printer
does: dithering.  That is all the DWC driver does...
Newsgroups: comp.sys.mac.hardware
From: bernard@moet.cs.colorado.edu (Bernie Bernstein)
Subject: Re: Apple's Consumer Products: TV Remote
Organization: Universtiy of Coloardo, Boulder
Date: Thu, 16 Apr 1992 01:23:52 GMT

In article <15APR199218321749@gergo.tamu.edu> dave@gergo.tamu.edu (Dave Martin) writes:
>I was watching Discovery Channel's "Beyond 2000" and saw something interesting.
>They were talking about universal remote controls and showed a new remote that
>"learns" the functions of other remotes. Sure, there are already some out there
>on the market, but how many of them are built by Apple Computer? The one they
>were showing was from Apple (had the Mac's platinum-colored case, as opposed to
>the black cases most companies use for their remotes, didn't see the Apple logo
>on it, though). It's supposed to have 37K of memory and be able to store the
>functions from a number of remote controls, and learns them by intercepting the
>infrared signals. 
>
>Maybe the April Fools joke about the coffee machine isn't that far off...
>
>




A few years ago, Woz had his own company and a product called Cloud 9
or CL9 or something like that. It was a programmable remote control
that sounded like fun. I saw it as a closeout at a store about 3 or 4
years ago and haven't heard of it since. I don't remember the details
of the device. I wonder if anybody bought one.

Perhaps that thing on tv is a revised CL9 that Apple is working with.
Somebody out there must know what the real scoop is.




-- 
      o,  ,,   ,      | Bernie Bernstein                      | ,    ,,
      L>O/  \,/ \    ,| University of Colorado at boulder     |/ \,,/  \
     O./  '  / . `, / | office: (303) 492-8136                |     / ` \  ,.
    ,/   /  ,      '  | email: bernard@cs.colorado.edu        | /        ''  \
From: d88-jwa@dront.nada.kth.se (Jon W{tte)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Apple 21" monitor specs
Date: 17 Apr 92 21:37:47 GMT
Organization: Royal Institute of Technology, Stockholm, Sweden
Originator: d88-jwa@dront.nada.kth.se

> hofmann@cs.uiuc.edu (J. Scott Hofmann) writes:

      Does the Apple 21" monitor support 24-bit megapixel (or better) 
   resolution on a Quadra 900 with just the built-in video support?

The monitor supports it, but Q internal video doesn't. They
would have to double the VRAM capacity and internal video
data bandwidth for that, which would be too expensive.

The 21" gives 8bit color, and the 16" gives 24 bit.

-- 
"You should meet yourself someday. I'm sure you would hate it."
- Me: h+@nada.kth.se; Jon W{tte (The Diplomat - NOT!)
From: hades@coos.dartmouth.edu (Hades)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Quadra VRAM, how much do you need for a 13inch to get 24 bit?
Date: 10 Apr 92 13:32:18 GMT
Organization: Dartmouth College, Hanover, NH

peirce@outpost.SF-Bay.org (Michael Peirce) writes:

>> Who's right MacWorld or Apple? And has anyone acheived 24 bit with
>> just 1 MB of RAM on a 13 inch monitor.

>Apple.  You NEED 2M of RAM for 24 bit color using a 13" monitor.
>(I've got that configuration in front of me right now - saving my
>penny's for a 16"!)

    Good choice. I love my Apple 16" Color. It's the perfect monitor for
a Quadra's built-in video support IMHO.

>I wouldn't be surprised if it would run a 12" using just 1M though.

    Probably, but why would you put a 12" monitor on a Quadra in the
first place ;->.

--
-Hades  (Brian V. Hughes)   | Common Taxpayer Q&A: Q. If I use the 1040 how
 hades@Coos.Dartmouth.Edu   | do I indicate my preference for the Elvis stamp?
 Mac Database Developer     | A. You write THIN ELVIS or FAT ELVIS in the box
 Dartmouth Medical School   | "Spouse's Social Security #." -Dave Barry
From: peirce@outpost.SF-Bay.org (Michael Peirce)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Quadra VRAM, how much do you need for a 13inch to get 24 bit?
Date: 9 Apr 92 03:57:35 GMT
Reply-To: peirce@outpost.SF-Bay.org (Michael Peirce)
Organization: Peirce Software
X-Mailer: uAccess - Macintosh Release: 1.5v4


In article <hlindley.702758222@cunews> (comp.sys.mac.hardware), hlindley@alfred.carleton.ca (Hugh Lindley) writes:
> I was under the impression, according to my Quadra "Getting Started"
> manual that the Quadra 700 required a full 2 mb (all slots filled) to
> achieve 24 bit color. However, in the May edition of MacWorld the
> writer claims,
> 
> "If you add no VRAM, the Quadra can support 8-bit color on a 13-inch
> monitor; if you add two more [VRAM] SIMMS (which brings memory to 1
> MB), the Quadra can support 24 bit color on a 13 inch monitor." p. 148
> 
> >From the "Getting started" manual I understand that a 12 inch color
> monitor can achieve 24 bit color with only 1 MB, but it says that you
> must have 2 MB of VRAM for a 13 inch color monitor. 
> 
> Who's right MacWorld or Apple? And has anyone acheived 24 bit with
> just 1 MB of RAM on a 13 inch monitor.

Apple.  You NEED 2M of RAM for 24 bit color using a 13" monitor.
(I've got that configuration in front of me right now - saving my
penny's for a 16"!)

I wouldn't be surprised if it would run a 12" using just 1M though.

--  Michael Peirce         --   peirce@outpost.SF-Bay.org
--  Peirce Software        --   Suite 301, 719 Hibiscus Place
--  Macintosh Programming  --   San Jose, California USA 95117
--           & Consulting  --   voice: (408) 244-6554 fax: (408) 244-6882
--                         --   AppleLink: peirce & America Online: AFC Peirce
Newsgroups: comp.sys.mac.hardware
From: george@endeavor.intel.com (George Rachor Jr. )
Subject: Re: Apple's Consumer Products: TV Remote
Organization: Intel Corporation , Hillsboro  OR
Date: Thu, 16 Apr 92 03:34:45 GMT

> or CL9 or something like that. It was a programmable remote control
> that sounded like fun. I saw it as a closeout at a store about 3 or 4
> years ago and haven't heard of it since. I don't remember the details
> of the device. I wonder if anybody bought one.
> 
> Perhaps that thing on tv is a revised CL9 that Apple is working with.
> Somebody out there must know what the real scoop is.
> 
> 
> 
> 
> -- 
>       o,  ,,   ,      | Bernie Bernstein                      | ,    ,,
>       L>O/  \,/ \    ,| University of Colorado at boulder     |/ \,,/  \
>      O./  '  / . `, / | office: (303) 492-8136                |     / ` \  ,.
>     ,/   /  ,      '  | email: bernard@cs.colorado.edu        | /        ''  \
More than likely that beyond 2000 episode was made a while back.  Check
the date at the end of the program.

-- 

George Rachor Jr.
Intel Corporation
From: aslt@acad2.alaska.edu
Newsgroups: comp.sys.mac.hardware
Subject: 13" Apple monitor to EGA?
Date: 7 Apr 92 22:02:31 GMT
Organization: University of Alaska

Hi all,

This may be an FAQ; if so, apologies.

Is it 1. possible and 2. easy to connect an Apple 13" color monitor (the one
they sell with the IIsi) to an MS-DOS EGA port, specifically the one on the
back of the Toshiba 3100e transportable.  If so, how?

E-mail replies appreciated.

Thanks in advance,

Lee
Newsgroups: comp.sys.mac.hardware
From: gyoungs@isis.cs.du.edu (Greg Youngs)
Subject: Re: Want a Good, WELL Priced mac with Great Service?
Organization: University of Denver, Dept. of Math & Comp. Sci.
Date: Thu, 16 Apr 92 22:05:39 GMT


I just went shopping for a Mac for a friend. Had not done so in 3 yrs.
In this time I have watched grey market mail order prices, along
with university prices here. 

Three years ago I bought from INACOMP Computers. Here in Denver & 
Boulder, Colo. area but they are very large and nationwide. T

They still have excellent prices and good service. 
I would buy used and get AppleCare just for insurance.
But when it came to buying new, I went with a dealer.
 
Greg 

Newsgroups: comp.sys.mac.hardware
From: kucharsk@solbourne.com (William Kucharski)
Subject: Re: Problems with internal Quadra 700 video?
Organization: Solbourne Computer, Inc., Longmont, CO
Date: Wed, 8 Apr 1992 00:25:56 GMT

While reading article <1194@treehouse.UUCP>, I noticed that
andyp@treehouse.UUCP (Andy Peterman) said the following:
 >The problem you're seeing is NOT in the Quadra, but rather in the Apple
 >16" Monitor!!!

Yes, you were correct!!

I have (had?) the blue tint problem; the only difference is that every so
often my monitor would kick into "correct" mode and flicker back and forth.
Since God was with me today, I was able to demonstrate this problem at the
dealer, and they are ordering me another AppleColor 16 (this will make my
third).

Quality control problems with the AppleColor 16?  Teething pains?  Luck of
the draw?  (Read the book :-) )
-- 
| William Kucharski, Solbourne Computer, Inc.     | Opinions expressed above
| Internet: kucharsk@solbourne.com   Ham: N0OKQ   | are MINE alone, not those
| Snail Mail: 1900 Pike Road, Longmont, CO  80501 | of Solbourne Computer, Inc.
| President, "Just the Ten of Us" Fan Club        | "It's Night 9 with D2 Dave!"
From: simpson@minotaur.sdd.trw.com (Scott Simpson)
Newsgroups: comp.sys.mac.hardware
Subject: Looking 4 Mac keyboard w/control key next to A
Keywords: Mac keyboard
Date: 7 Apr 92 21:15:31 GMT
Organization: TRW Arcadia Project, Redondo Beach, CA


I have a Mac Classic with the standard keyboard that came with it. I
am looking for a keyboard for it with the control key next to the A
key; that is, I want a keyboard like the DEC and Sun workstations.
Currently, my Mac keyboard has the Caps Lock key next to the A. Does
anybody know where I can find such a beast? I called Apple and some of
the mail order houses and none of them said they had such a thing.
-- 
Scott Simpson, Investment Technology Group, iac!simpson@uunet.uu.net
simpson@trwarcadia.sdd.trw.com (Guest account. Forwards to above.)
Newsgroups: comp.sys.mac.hardware
From: huesmann@wam.umd.edu (Joseph Edward Huesmann)
Subject: Mac SE/30 w/ Micron Xceed 30: Internal Monitor Q
Originator: huesmann@rac2.wam.umd.edu
Organization: University of Maryland at College Park
Distribution: usa
Date: Tue, 7 Apr 1992 03:11:45 GMT


Is it possible to switch off the internal Mac monitor on an SE/30
with a Micron Xceed 30 card? It seems to be causing trouble for
a few apps I have. Thanks for any tips!

Joe
From: cranem@edsi.plexus.COM (Mike Crane)
Newsgroups: comp.sys.mac.hardware
Subject: PLI CD-ROM
Keywords: CD,ROM
Date: 12 Apr 92 03:47:52 GMT
Article-I.D.: edsi.1992Apr12.034752.24023
Organization: Enterprise Data Systems Incorporated, Appleton WI

I just purchased a PLI CD-ROM drive and hooked it up to my Mac Plus.
Unfortunately, since this was a demo model, I got nothing with it but a
power cable and CD caddy -- no manuals or drivers.  Would somebody here
be so kind as to either mail me the necessary drivers or tell me where I
can get drivers that will work with this drive.

-- 
Mike Crane           Bang: uunet.uu.net!edsi.plexus.COM!cranem@uunet.UU.NET
Internet: cranem@edsi.plexus.com | Michael_Crane@ntc.com
GEnie: M.CRANE   AOL: MIKE566      "Who needs drugs...we've got UNIX!" - Me
Newsgroups: comp.sys.mac.hardware
From: mspace@netcom.com (Brian Hall)
Subject: Is there such a thing as a IIsi Nubus Adaptor w/Cache?
Date: Thu, 16 Apr 92 09:55:37 GMT
Organization: Netcom - Online Communication Services  (408 241-9760 guest) 
Distribution: na

I have a Nubus card I would like to use with my IIsi (a Quadralink) and
I would also like to get a cache card at the same time.  Does such a beast
exist?  It seems that the only IIsi cache cards contain SE/30 adaptors
or just a vanilla PDS extender.


-- 
+-----------------------------------------------------------------------------+
| Brian Hall, Mark/Space Softworks                                            |
| mspace@netcom.com; Applelink, America Online: MarkSpace                     |
+-----------------------------------------------------------------------------+
From: stump1@unix.cis.pitt.edu (Robert E Mitchell)
Newsgroups: comp.sys.mac.hardware
Subject: APS Driver Software (Some "bugs")
Keywords: APS
Date: 15 Apr 92 22:32:28 GMT
Organization: Univ. of Pittsburgh, Computing & Information Services


	I while back I saw a post regarding some problems with Alliance
Power Tools driver software.  I answered this post seeing as I have had
problems recently as well.  The thread died abruptly, and I'm still
curious as to who is having problems and to what extent.  

	I was having problems with random crashes, and i pretty much
narrowed it down to the driver software.  I wasn't 100% sure until
yesterday, when I tried to set password protection on one of my
partitions
(OOPS) with Power Tools assistant (a control panel adition to Power
Tools) When I restarted the machine, i had my answer.  The machine
crashed and wound up in and endless "loop" at the same point it
had done previously.  Luckily this time it didn't corrupt the system
file as well.  Booting from a floppy allowed me to reset protection
and the machine is now working.  Still, theres something strange going
on with power tools and my mac.Configuration:
IIfx 8/210 (APS)
RasterOps 24si Video Card
System 7.0
TuneUp 7.1.1 (gads!)
A few minor extensions that I have turned off
No Virtual Memory.

BTW, I disabled power tools assistant, and haven't had any problems
for the last day and a half, but I afraid to really try any thing
crazy as far as testing cause i have a lot of stuff due this week.

Anybody have an answer, or at least some thoughts.  Mutual experiences?
Anyone out there at APS have a clue.  I love the product, but this
really sucks.

Thanks,

				Stump.
PS Post or mail.  It's all billed to the University:^)
From: d88-jwa@hemul.nada.kth.se (Jon W{tte)
Newsgroups: comp.sys.mac.hardware
Subject: Re: VideoSpigot doesn't grab 24 bit movies!
Date: 8 Apr 92 16:59:42 GMT
Organization: Royal Institute of Technology, Stockholm, Sweden
Originator: d88-jwa@hemul.nada.kth.se

> mpradhan@medicine.adelaide.edu.au (Malcolm Pradhan) writes:

    Spigot is very good at capturing still frames in full 24 bit colour,
   but the ScreenPlay application only allows the recording of movies in
   what seems to be 16 bit colour. This is noticible when capturing movies

A little known fact about the Apple Video Compressor (Road Pizza)
is that it only uses 16 bits... That is; it's probably not the
boards fault, it's QuickTimes. Use "no compression" and see if it
changes.

-- 
h+@nada.kth.se; Jon W{tte, the Diplomat - NOT!
Newsgroups: comp.sys.mac.hardware
From: gilmore@venice.sedd.trw.com (Larry Gilmore)
Subject: Mixing Memory speed: SE/30
Summary: Which Banks
Organization: TRW Systems Engineering & Development Division, Carson, CA
Date: Thu, 16 Apr 1992 15:26:32 GMT

I believe I can use a set of 100ns SIMMS in one bank and a set of 80ns
in the other.  Does anyone know of any advantage in putting the faster
memory in one bank over the other?
Thanx for any info!

Larry

-- 
Larry A. Gilmore             Internet: gilmore@venice.sedd.trw.com
TRW SEDD, DH1/2849
P.O. Box 6213                Phone:    (310)764-3318
Carson, CA 90746             Fax:      (310)764-3946
From: choi@gsbsrc.uchicago.edu (Dongseok Choi)
Newsgroups: comp.sys.mac.hardware
Subject: IIsi and Radius Rockect
Date: 12 Apr 92 09:18:56 GMT
Organization: University of Chicago Computing Organizations


 Apple said IIsi has 15w to support NuBus.
 Radius said Rocket consumes power 2.5 amps @ 5V (with 8MB of Ram).
 So it may be 2.5 * 5 = 12.5 w ?
 If so, why isn't it compatible with IIsi when it has 8MB?
 Could you explain or correct me?

 Would you reply by email or posting?

 D. Choi
 email : choi@galton.uchicago.edu