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From: ace@tidbits.com (Adam C. Engst)
To: TIDBITS@RICEVM1.RICE.EDU
Subject: TidBITS#182/28-Jun-93
Date: Mon, 28 Jun 93 21:37:02 PDT
Organization: TidBITS
Reply-To: ace@tidbits.com (Adam C. Engst)
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TidBITS#182/28-Jun-93
=====================
Well, what is the PowerPC and should I wait? Good question, and we
try to answer it this issue. We also have a look at Fifth
Generation Systems' excellent CopyDoubler 2.0, FWB's CD-ROM
Toolkit, the shareware ZipIt compression program, information on
speeding up file sharing startup, and how to learn more about
the PowerPC on AppleLink.
Copyright 1990-1993 Adam & Tonya Engst. Non-profit, non-commercial
publications may reprint articles if full credit is given. Other
publications please contact us. We do not guarantee the accuracy
of articles. Caveat lector. Publication, product, and company
names may be registered trademarks of their companies. Disk
subscriptions and back issues are available - email for details.
For information send email to info@tidbits.com or ace@tidbits.com
CIS: 72511,306 -- AppleLink: ace@tidbits.com@internet#
AOL: Adam Engst -- Delphi: Adam_Engst -- BIX: TidBITS
TidBITS -- 1106 North 31st Street -- Renton, WA 98056 USA
-----------------------------------------------------------------
Topics:
MailBITS/28-Jun-93
PowerPC developer info
Just ZipIt
CD-ROM Toolkit
CopyDoubler 2.0
PowerPC Update
Reviews/28-Jun-93
[Archived as /info-mac/per/tb/tidbits-182.etx; 29K]
MailBITS/28-Jun-93
------------------
But of course we all know that there are eight SCSI ID numbers
(0-7, of which the SCSI controller always steals one), not seven
as Jeff Needleman accidentally wrote last issue. Thanks to John
Saxton, Frank Nagy, Ioannis Mangos, and everyone else who pointed
this out. We don't like being wrong, but we do like correcting our
mistakes.
**Video Spigot competition** comes from Sigma Designs and its $349
Movie Movie, a NuBus hardware and software combination for
capturing digital audio and full-motion video. Along with 30 frame
per second capture in standard QuickTime postage stamp sizes,
Movie Movie can capture a full 640 x 480 resolution window, which
is useful for still images. Sigma Designs -- 510/770-0100 --
510/770-2640 (fax)
**If File Sharing starts slowly** on cold mornings, try deleting
the AppleShare PDS file that lives at the root level on each
shared volume. Jon Pugh <jpugh@apple.com> posted this tip on
Info-Mac, saying that it took File Sharing about an hour to start
up on his PowerBook, and after deleting the file, it took less
than a minute. My Mac always seemed to start slowly as well, so I
used ResEdit to make the AppleShare PDS files on all my volumes
visible (at which point you can see the snazzy killer rabbit
icon), trashed them, and then rebooted. I presume that File
Sharing rebuilt them on the subsequent reboot, and File Sharing
starts up much faster now. You will lose all your sharing
preferences, but since I have nothing fancy set up, it wasn't a
problem for me. (I just log in to my SE/30's volumes from the
PowerBook as the owner, which allows me to avoid setting up
sharing for each individual volume. I once heard that using the
Finder's Sharing menu item to share the disks, which lets you
share specific folders and set more specific privileges, exacts a
small performance hit.)
PowerPC developer info
----------------------
by Mark H. Anbinder, News Editor -- mha@baka.ithaca.ny.us
Technical Support Coordinator, BAKA Computers
Everyone's talking about PowerPC, the new processor architecture
Apple and IBM have been developing, that promises to blow away all
the microprocessors currently on the market. If you'd like to
sound knowledgeable about PowerPC at that big cocktail party this
weekend, check out the new "Macintosh on PowerPC" folder that
Apple Developer Services has provided on AppleLink. This folder
houses general information for third-party developers interested
in preparing for the next Macintosh platform.
The information includes options for transitioning to PowerPC,
what development tools will be available, what can be done to
prepare for PowerPC, and which developers have already hopped onto
the bandwagon. The folder can be found under the AppleLink path
Developer Support -> Developer Services -> Macintosh on PowerPC.
AppleLink, which previously was available somewhat exclusive to
Apple employees, dealers, and third-party developers, is now
available to anyone willing to fill out the form and spend the
money. Although AppleLink costs a good deal more than other online
services, it often has more information, more timely news, and
better access to Apple resources and other developers. You can
find subscription applications on (you guessed it) AppleLink,
under the AppleLink Help Desk icon, so you can ask your local
dealer or an existing developer to download one for you.
Information from:
Apple Developer Group
Just ZipIt
----------
by Jim Wheelis -- jimw50@aol.com
Up to now, I've thought of zip files (a popular compression format
on DOS machines, much as .sit files from StuffIt Deluxe are on the
Mac) as kids from the other side of town - tolerated at best. I
see a lot of these interlopers from bulletin boards, and I
occasionally modem documents to someone who runs a DOS machine.
Short of buying Aladdin's StuffIt Deluxe or the Macintosh version
of PKWare (which I've seen advertised but never reviewed), it used
to be awkward to create a zip file on a Mac. Unzipping wasn't a
problem, because A.P. Maika's several incarnations of UnZip did
that nicely. I have used MacZip to create zip files, but I found
it awkward, and I couldn't make it work unless I placed both the
new archive and the original file in the same folder. Tommy
Brown's <70314.3342@compuserve.com> ZipIt 1.1.1 goes a long way
towards making the .ZIP compression protocols available in Mac
shareware.
ZipIt's interface is (expressly) modeled after Compact Pro. It
uses many of the same commands and has similar dialogs. The manual
is comprehensive, and the author is attentive to bug reports. I've
used the latest version without any snags on a Brainstorm
accelerated Plus and on an LC III.
Is it on a par with StuffIt Lite and Compact Pro? Not on features,
not yet. It doesn't do folders, for one thing. You can select a
folder containing several tiers of sub-folders, and it will
compress the files within them, but doesn't respect the folder
boundaries. ZipIt works its way right through the folders,
compressing every file into one archive, and it won't allow files
with the same name in the same archive. The manual mentions this
limitation as something a future version will cure. Even on the
DOS side, PKZip and PKUnzip preserve a directory structure only on
receiving specific commands to do so - not as a default, like
Compact Pro and StuffIt Lite.
ZipIt lets you choose whether to strip linefeeds or save a file in
MacBinary format. Although I didn't experience problems when
transferring ZipIt archives between Mac and DOS, the manual
reports some complaints about compatibility between the two
platforms. It's not an instrument of sorcery; you still have to
pay attention to formats - whether the TEXT file you compress has
linefeeds, what the DOS word processor at the other end can
handle, and so on. I had no trouble creating the archive on the
Mac and copying it to a DOS-formatted disk.
If you can, before you push your archive into the modem, see if
PKUnzip can read it under DOS. If you are dealing with a text
file, you can test it further by seeing if typing "TYPE
textfile.txt" (where "textfile.txt" is the name of your text
document) at the C: prompt produces the text of the file on your
screen. This will tell you how much work you have to do before you
archive the file. And ZipIt, though it can strip linefeeds, can't
add them. For that, you need something else - Add/Strip on the
Mac, for example, or your word processor conversion capabilities.
[For those confused by the linefeed issue, the Mac uses a carriage
return (CR) to end a line, where as DOS uses a carriage return and
linefeed combination (CR/LF). Thus, when transferring text files
to a Mac from a DOS machine, you may see little boxes in front of
every line since the Mac sees the CR, ends the line, and then
doesn't know what to display for the linefeed character that comes
next. Hence the little boxes. In going the other direction, Mac to
DOS, you want to add linefeeds so DOS knows where lines end.
-Adam]
Here are some before and after sizes (taken from the Finder
window) and timings on compression (using my analog wristwatch,
counting from when the program started compressing until it said
Done). I tested Compact Pro 1.33, StuffIt Lite 3.0.5, and ZipIt
1.1.1, all on an LC III with 8 MB RAM.
Test One = 3.9 MB TEXT only
Archive Size Time
Compact Pro 965 K 2 min 33 sec
StuffIt Lite 890 K 4 min 58 sec
ZipIt 878 K 4 min 32 sec
Test Two = 198K PICT
Archive Size Time
Compact Pro 68 K 15 sec
StuffIt Lite 65 K 12 sec
ZipIt 63 K 18 sec
Test Three = 1.4 MB Microsoft Word 5.1 document with 2 PICTs
Archive Size Time
Compact Pro 420 K 60 sec
StuffIt Lite 380 K 132 sec
ZipIt 358 K 152 sec
As you can see, ZipIt was in the ballpark with Compact Pro and
StuffIt Lite in each test, although it won't compete with them any
time soon in the Macintosh world as a whole. ZipIt's primary
purpose is to provide compatibility with DOS compression formats
(one reason for not testing applications or other formats that
wouldn't transfer), and it appears to do that admirably.
You can find ZipIt 1.1.1 on the Internet at <sumex-
aim.stanford.edu> as:
info-mac/util/zip-it-111.hqx
CD-ROM Toolkit
--------------
Those of us dismayed at the thoroughly mediocre performance of
CD-ROM might do well to check out FWB's new CD-ROM Toolkit. Like
FWB's Hard Disk Toolkit, CD-ROM Toolkit replaces Apple's driver
software to improve performance. This driver works in the
background and can improve CD-ROM performance by up to 1800%,
although smaller amounts are more common.
CD-ROM Toolkit works its magic by caching information from the
CD-ROM to your hard disk, specifically, to a file in your
Preferences folder, which is a problem for those of us who work
with a relatively small boot partition. You can trash that file
when it's not in use, a feature that might be handy when you need
some free space fast. You can specify the size of the file, from
1,500K to 5,000K, but you need that amount of _contiguous_ free
space, so optimizing your volume makes sense, especially since if
you don't have at least 1,500K of free space, you can't use CD-ROM
Toolkit. In that file, CD-ROM Toolkit caches the directory
information, along with icon and alias data and a variable-sized
read-ahead RAM cache (which assumes that after reading some data,
the most likely data to be needed subsequently is the next bit of
data on the disk).
CD-ROM Toolkit works with most CD-ROM drives, even the newer
multi-speed ones, and supports Photo-CD single- and multi-session
disks (the latter only on multi-session-capable drives), multi-
platter devices, HyperCard audio XCMDs, Apple Multimedia
specifications, ISO 9660, High Sierra, HFS, MS-DOS, ProDOS, and CD
Digital Audio. It even comes with an audio CD player program to
play audio CDs on any CD-ROM drive with audio jacks (if you play
an audio CD on a CD-ROM drive without audio jacks, does it make a
sound?).
John Baxter, who relayed his impressions of CD-ROM Toolkit for
this article, said that there are a number of options in the
CD-ROM Toolkit Control Panel, and that you will need to play with
them to achieve optimal performance. One set of options gave far
better performance with some QuickTime movies for John, whereas
other movies showed worse performance than without CD-ROM Toolkit
installed. John did note that the Developer CD and the new
AppleScript CD clearly benefited from using the CD-ROM Toolkit. On
the negative side, twice John inserted a CD and almost immediately
started a Finder Find command, looking for a file that he knew was
present on the CD, only to have the Finder report that the file
was not present. Many folders also appeared empty, which led John
to the tentative conclusion that issuing a Find command
immediately after inserting the CD interrupts the directory
caching in such a way that the CD-ROM Toolkit didn't go back and
finish creating the cache properly. FWB didn't respond to our
query about this. When I spoke with him last, John said that he
had stopped using CD-ROM Toolkit due to an apparent conflict with
Stacker, which he had just installed as well. Nothing definite
about that, but be warned. FWB just released an updater to version
1.0.1 of CD-ROM Toolkit, and it's possible that John's
difficulties were addressed in that release.
CD-ROM Toolkit is only $49 mail order, so if you use your CD drive
heavily, it's worth checking out, although I'd recommend ordering
from a vendor that accepts returns if possible, just in case your
applications show little or no benefit.
FWB -- 415/474-8055 -- 415/775-2125 (fax)
71320.1034@compuserve.com
Information from:
FWB propaganda
John Baxter -- jwbaxter@halcyon.com
CopyDoubler 2.0
---------------
Too much utility software these days does an excellent job of
solving problems that don't exist. I'm not interested yet another
program launcher, or the latest and greatest in hierarchical Apple
menu utilities. But Fifth Generation's Salient Software has come
up with yet another utility that solves some of my real-world
problems, CopyDoubler 2.0.
CopyDoubler 1.0 did a good job at replacing and speeding up the
Finder's copying routines, but it wasn't drop-dead impressive.
Despite not being nearly as fast, CopyRight from CSG Technologies
seemed snazzier, because it could work away on multiple
simultaneous copies in the background. It was deceptive though,
since much of the time when you copy files, you want to work with
either the result of the copy or the source files, and a
background copy doesn't finish as quickly as a foreground copy.
CopyDoubler's developers figured out how to add background
features and queued multiple copies to CopyDoubler, and in the
process added a slew of other features that may solve some of your
problems as they solved mine.
CopyDoubler is a single Control Panel. Apparently there is a trick
to putting application code in a Control Panel, so it lives in the
Control Panels folder but can launch as an application (which is
how you can send it into the background). By default, when you
start a copy, CopyDoubler launches into the foreground and starts
to copy. Since it's so fast, most of the time you don't even get a
chance to send it into the background, but if you're copying a lot
of files to floppy and you don't need it done immediately, you can
click in another application to send CopyDoubler to the back. I
seldom do this, but it can be handy. If you really like background
copying, you always launch CopyDoubler into the background.
CopyDoubler still comes with a number of options for verifying
files written to different types of disks, and you can still use
it to empty the trash faster than the Finder, or to empty the
trash in the background. You now have notification options as
well, since otherwise you might never know when a background copy
had finished. But the truly interesting new features come with
CopyDoubler's scheduled copies.
In some ways, the name is unfortunate, because a scheduled copy
doesn't have to have a schedule. As you copy a file, if you hold
down the control key, CopyDoubler will let you choose to copy "Now
with CopyDoubler," "Later with CopyDoubler," or "Now without
CopyDoubler." In addition, you can temporarily changes the
settings for verification and notification, and if you use
AutoDoubler as well, expand or compress the files during the copy.
The ability to compress while copying is especially useful for
AutoDoubler users who don't own DiskDoubler, because they can't
easily compress a file manually after copying.
In any event, if you choose "Later with CopyDoubler," you can hit
the Schedule button to bring up a large dialog that lets you
determine when and how your copy will happen. The "When" options
include at startup, restart, or shutdown; repeating every X number
of hours; repeating at certain times on certain days; only via the
keyboard; or postponed indefinitely. I'm sure you can figure out
if timed copying appeals to you, but the option that interests me
is copying via a keystroke. One of my big problems is that I have
various files scattered around my hard disks that I duplicate on
the PowerBook 100. These files are items like my Nisus Macros,
Nisus User Dictionary, my address database, and so on. All told,
there are ten or fifteen of them, and updating them manually is a
major pain. None of the PowerBook synchronization programs will
help (except reportedly Inline Sync) since I want to move these
files from multiple source folders to multiple destination
folders, which would require an individual setup in a sync
program, even the one I currently like the most, FileRunner. I
refuse to organize my life to suit a sync program.
Here's the trick. CopyDoubler's "only via keyboard" option lets me
start a specific copy via a keystroke. But, CopyDoubler doesn't
force me to choose unique keystrokes for each copy, so I chose the
same one for each. Now, by hitting a single keystroke (I don't
want to do this at any specific time, but I could), I can update
all of these data and support files in one swell foop. Of course,
all this happens via file sharing, and as long as AppleTalk is on,
CopyDoubler knows enough to mount all the appropriate volumes,
remembering passwords where necessary, and even dismounts them
when its done. The first time I tried this and it worked I was
literally jumping up and down with excitement. All too often my
problems stay unsolved, but CopyDoubler did a bang-up job on that
particular one.
Now, as much as CopyDoubler can in some ways double as a sync
program or a backup program, keep in mind that it isn't
specifically trying to do either. It has no facilities for two-way
copying like a sync program, and it doesn't let you flexibly
choose files like a good backup program, although its Fast Replace
will only replace changed files (which is how I can quickly copy
the entire folder of TidBITS issues each time). However, if you
find yourself with a task that doesn't quite fit either a sync
program or a backup program, check out CopyDoubler. The closest I
can come to a complaint with CopyDoubler is that it has some
large, nested, modal dialogs while editing scheduled copies.
That's not something most people will do often, though, and it's a
minor quibble. I highly recommend CopyDoubler if you've ever
experienced frustration with copying files in the Finder, either
in terms of speed or features.
CopyDoubler 2.0 lists for $59.95 and upgrades are available for
$14.95. You can test a demo of CopyDoubler if you like; it's
available on sumex-aim.stanford.edu via anonymous FTP as:
/info-mac/demo/copy-doubler-20.hqx
Fifth Generation Systems -- 800/873-4384 -- 504/291-7221
504/295-3268 -- fifthgensys@aol.com
PowerPC Update
--------------
So what's the deal here? Is the PowerPC chip real? Is the
Macintosh line dead? Is it true that if you look at the signatures
in an SE case in a mirror one of them reads "Elvis Presley Lives?"
Good questions, all, except the last one, so whoever asked that
one, go wash your head. I'm not an engineer, and I'm not an Apple
insider, so I'm basing my impressions here on vapor, rumor, and
gut feel. So what's new?
For those coming late to the game, the PowerPC chip is one result
of the Apple-IBM deal, with Motorola brought in to help with the
design and manufacturing. The chip itself is RISC-based (Reduced
Instruction Set Computing, or killer fast) and scalable, which
means that it will be easy to create different versions for
different levels of hardware, PDAs, desktop machines,
workstations, and so on. I think Ford has even announced plans to
put it in a car, although that strikes me as overkill unless they
have something new and neat in mind. Apple and IBM both intend to
use the chip in new machines, but for the purposes of this
article, we'll ignore IBM. It's not hard if you practice.
The current schedule, which is surprisingly on target or even
slightly ahead, has the first PowerPC-based Macs appearing in
January of 1994. Those machines will run current Macintosh
applications without modification in emulation mode at about the
same speed as the 68040-based Centris machines. It will also run
native PowerPC applications (of which we may not see many right
away) at speeds ranging from two to five times faster than the
fastest Quadras right now. There's no telling where in that range
the first PowerPCs will fall, although I wouldn't scoff at twice
the speed of a Quadra.
In addition, if you're concerned about Intel's forthcoming Pentium
chip, I gather that the PowerPC 601, the first of the PowerPC
chips, is faster, smaller, cheaper, cooler, and uses less power.
Don't worry, though, it will be just as easy to spot Pentium-
equipped PCs as it is to spot PCs now. Almost all of them come
with this useful little warning required by the Truth In
Advertising Act, saying "Intel Inside."
So the PowerPC is going to be a winner next winter from what we
hear now. But Apple has the Centris 660av and the Quadra 840av,
code-named Tempest and Cyclone respectively, slated for this
summer. They will sport all sorts of new technology, including a
built-in digital signal processor, which will allow them to
perform voice recognition and synthesis, as well as emulate a fast
modem when combined with the new high-speed GeoPort for serial and
network communications. Both machines will have built-in digital
video, allowing them to capture and output 16-bit color video
without additional hardware. They also feature direct memory
access to the CPU buses, built-in Ethernet, and a faster NuBus. In
short, these are killer Macs, especially at the $2,300 estimated
for the Centris 660av.
But as much as these two new Macs will represent a major
architectural change, the PowerPCs go farther. Will these be the
last two 68000-based Macs? Unlikely, especially until a PowerPC
PowerBook becomes possible. Are they the beginning of the end for
the 68000 line? Very possibly. Think back to the IIfx and its
special SCSI/DMA controller that was supposed to improve SCSI
performance, but languished unused without system software
support. Could the same thing happen to the Centris 660av and
Quadra 840av? I just don't know, but I see three possible ways to
deal with this situation as an interested consumer.
First, let's assume that the PowerPCs aren't going to be real for
some time after January of 1994, in terms of available hardware
(although Apple is rumored to be already stockpiling the PowerPC
601 chip that the first PowerPCs will use) and software that will
take advantage of the PowerPC's native mode. If that's the case,
then the Centris 660av and Quadra 840av suddenly reign supreme at
the high end, and anyone who needs that kind of speed will go for
the known quantity of the 68040 chip. So wait until this summer
and buy one. I don't think you'll regret it, although I'd wait
just long enough to confirm that your applications don't have
trouble with the new technologies.
Second, let's continue to assume that the PowerPCs won't be real
for some time, and that the large quantities of new technology in
the Centris 660av and Quadra 840av scare you. That's not a poor
assumption for those of you who don't enjoy the bleeding edge of
technology. Almost every major change in Macintosh technology has
required a few months of break-in time, during which the
application vendors scramble to achieve compatibility or to take
advantage of the new technologies. There's nothing wrong with
that, and the Mac II, the IIci, the IIfx, and the Quadras have all
become stable, useful, machines after those first few months. So
if you don't wish to take risks of any sort, but you need a new
machine soon, you should think carefully about buying a nice
Centris 610 or 650, or perhaps a Quadra 800. If it were my money
on the line, I'd recommend the Centris 610 since you want to
remain flexible on the PowerPCs, so you shouldn't spend all your
money now, even if you can't wait.
Third and finally, let's assume that the PowerPCs are going to
appear in January of 1994 and that all the major Macintosh
applications will run in emulation mode just fine. If you can wait
until January for those first few models of the PowerPC, that
might prove to be the move of the year, although as with anything
electronic, the first PowerPCs will be obsolete within a year or
so. But what's obsolete when you have native mode applications
running several times faster than a Quadra?
Surprise surprise, I'm in this very quandary right now. I'm
working on an SE/30 that started out life as a double-floppy SE in
1988, and although it has served me well and has been rewarded
with 20 MB of RAM and ever-increasing amounts of disk space, I
fear that I am slowly becoming more in need of a faster machine.
In some respects I can wait to see how things shake out because
the SE/30 really is fast enough. Heck, I'm writing my Internet
book entirely in Nisus on the PowerBook 100. If I only had a Plus,
I would be far more inclined to jump for a Centris 610 right now,
or maybe hold out for a Centris 660av this summer. Waiting until
January might be just too long if I were working on a Plus.
But then there's the technology issue. I'm actually a bit of a
wimp when it comes to buying new technology (comes from not having
unlimited funds, no doubt), but I want voice capabilities bad.
Although my carpal tunnel seems to be in control, I have to watch
how much I type, and even with the Curtis MVP Mouse (a trackball)
and its footswitch, I find that I sometimes overdo it on mousing.
If I could reduce the number of clicks and keystrokes with voice
control.... So I personally have to wait for at least the av Macs,
but then comes the question of the PowerPCs. Is it worth holding
out just a few months longer? The PowerPCs won't have DSP chips in
them because the Apple engineers found that the PowerPC chip could
do the same tasks as the DSP chip even faster, so adding the DSP
chip didn't provide any speed benefits. It's hard to ignore that
kind of raw power.
If pressed, I would say that the issue hasn't really changed. The
first rule of buying computers is that you buy what you can afford
when you absolutely need it. If you can wait, the prices will drop
and the power will increase. So I always advise waiting as long as
you can possibly stand it (keeping in mind that it may take a
while to get your machine of choice even after ordering it), and
then buying the best machine you can. Also, if possible,
immediately start ignoring all reports of faster machines or
cheaper prices - they just make you unhappy. Be content with what
you have and rest assured that it was the best choice when you
bought it. It's the only way to stay sane in this fast-moving
world.
Motorola PowerPC Information Pack -- 800/845-MOTO
Information from:
Pythaeus
Reviews/28-Jun-93
-----------------
* MacWEEK -- 21-Jun-93, Vol. 7, #25
CricketDraw III 2.0 -- pg. 49
DeBabelizer 1.4.02 -- pg. 49
Hardware Diagnostic Utilities -- pg. 58
Snooper 2.0.1
MacEKG 2.0.6x
Peace of Mind 1.2.3
Text Search Utilities -- pg. 62
Alki Seek 2.1
Retrieve It! 1.1
GOfer 2.0
On Location 2.0.1
..
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