Part 28 of elf's Apple PowerBook G4 Journal
2G, 3G, GPRS, CDMA, GSM, W-CDMA, UMTS, WTF?
iphone technology
Sun Jul 01 00:00:04 2007
"The iPhone is a 2.5G quad-band GSM phone." What does this mean
exactly? The bottom line is data speed— how fast you can surf
the net and how fast can you send and receive movies and photographs
on your mobile phone?
Let's start with the first generation (1G) mobile phones, c. 1970, which
used analog radio signals. These phones looked like bricks topped with
an antenna; most of the phone's volume was the battery. This
technology was voice only, no data.
Second generation (2G) phones, c. 1980, used digital signals,
which provided several benefits over analog signals: digital signals
could be compressed, which meant that many phone calls could be fit
into the same spectrum band as a single analog call; since digital
signals have lower power, the phones were physically smaller as the
battery required to power the phones was smaller. The data rate for
this technology was 9.6kb/s. There were two competing technologies
in this era: TDMA (used by GSM
which is the worldwide standard for mobile telephony) and CDMA.
General Packet Radio Service (GPRS)
phones (2.5G), c. 2000, were a half-step evolution from the primitive
TDMA technology, which improved the data rates to 40kb/s (theoretical
ideal was 56kb/s) and a further step called EGPRS (EDGE) had data
rates of 120kb/s. This is where we stand today with the iPhone.
Universal Mobile Telecommunications System (UMTS) phones (3G),
c. 2005, are the next step in the evolution from EDGE. UMTS phones
using W-CDMA have data rates of 14Mb/s; UMTS networks using High
Speed Downlink Packet Access (HSDPA) have speeds of 3.6 Mb/s
(3.5G). Some countries already provide this service; North America is
beginning to catch-up.
Book Review: "American Prometheus"
Sun Jul 01 16:23:30 2007
The book review and excerpts of Robert Oppenheimer's biography is
now available on my bookshelf.
The Competition
iphone
Mon Jul 02 16:40:04 2007
Story
from the Seattle Times about people lining up for the
iPhone; what is interesting is the Microsoft employees...
The Microsoft presence was even more evident at the AT&T store at
Redmond Town Center. Many who were there— just a few miles from
Microsoft's campus— wore Microsoft T-shirts, Xbox sweatshirts and
even employee badges. One employee said an entire team within the
Windows Mobile group was there to buy a phone to check out the
competition. Microsoft released the sixth version of its Windows
Mobile operating system earlier this year.
Amazing! Six versions of winCE and it's still a load of crap that
has to be rebooted at least once a day.
The iPhone is not Golden
iphone
Tue Jul 03 23:45:37 2007
I started reading “Zero: biography of a dangerous
idea” today, which talked about the Golden
ratio. When I got home, I downloaded a PNG of the iPhone from the
iPhone ADC site and loaded it up in Photoshop and measured the ratio
of the height (~271 pixels) to the width (~143 pixels); the ratio was
1.895. The Golden Ratio is approximately 1.6180. Dissappointing.
In mathematics and the arts, two quantities are in the golden ratio
if the ratio between the sum of those quantities and the larger one
is the same as the ratio between the larger one and the smaller. The
golden ratio is approximately 1.6180339887.
At least since the Renaissance, many artists and architects have
proportioned their works to approximate the golden ratio—especially
in the form of the golden rectangle, in which the ratio of the longer
side to the shorter is the golden ratio—believing this proportion to
be aesthetically pleasing. Mathematicians have studied the golden
ratio because of its unique and interesting properties.
The iPhone is not a Number
iphone
Wed Jul 04 08:26:50 2007
"What do you want?"
"Information."
"Whose side are you on?"
"That would be telling.... We want information. Information! INFORMATION!"
"You won't get it."
"By hook or by crook, we will."
—The Prisoner Intro.
Titled "iPhone Independence Day", Jon Lech Johansen's blog tells
about using the iPhone without AT&T activation. Another group has
managed to authorize and de-authorize an iPhone without iTunes
activation. It looks like both these efforts happened under
Winows. The applications on the iPhone run as root...tsk, tsk... when
will people learn, and the root account's password in the
restore-to-factory-defaults DMG has been
compromised (dottie).
A Computer for My Parents
iphone
Fri Jul 06 18:19:21 2007
My dad can send an email without ever touching a computer; he can
also search the Wikipedia without touching a computer keyboard. How
is this possible you're asking, do they use voice input?
Here is the secret of how my Dad sends an email: I am given a
hand-written note (including the date in the top-right corner, but no
subject!) which I transcribe and send from my email address (I save
the note because my Dad has beautiful handwriting; I was thinking of
making a font from it). When I get a reply, I print it out and
hand-deliver it to the recipient.
But what if he had a small, handheld computer that he could use
(without having to "login"), while sitting on the sofa in the living
room, and perform actions by just pointing with just his
fingers— things like sending a brief email, getting the weather
forecast or looking something up on the Wikipedia?
After reading several reviews since the iPhone's release, I am
becoming more and more convinced that an iPhone would make a perfect
"computer" for my parents; the iPhone is not like a "traditional
computer", yet it does the few important tasks that they are
interested in doing. It does them simply and it does them well.
iPhone Bug Report
iphone
Sat Jul 07 20:32:04 2007
I filed my first iPhone bug-report today; I made a screenshot
before I sent it. (This is the result of my being influenced by a
marketing campaign whose slogan was Think Different.)
Apple suggests you use the iPhone Feedback
form to submit yours.
iPhoneDevCamp
iphone
Sun Jul 08 19:28:37 2007
The iPhoneDevCamp, hosted by Adobe, Flickr pool has an interesting
pic
of moPhaic, a tool to scroll a text-message across an iPhone.
Do not look at the other photos if you are horrified at the sight of
Dells and Thinkpads alongside Macs.
Laptop in Bed
photography
Mon Jul 09 13:07:23 2007
The original picture was a 2.5 second exposure in a completely
darked room with the only illumination being the Powerbook screen,
the backlit keyboard and the streetlight outside my window. The
camera was placed on a table next to the bed and the 10 second delay
timer was used.
After a #emacs discussion on laptop-in-bed ergonomics, I decided
to post it without giving too much of my privacy away; the photo was
filtered in Photoshop Elements using the Treshold filter and then
various elements, including the view of the corridor outside the
bedroom and the two
pillows behind me, were eliminated. What remains is a
minimalistic view (23K JPEG with medium compression) of me in bed
with mathilde.
Note the nice diagonal beginning at the laptop keyboard and
following my arm up to the reflection from the streetlight on the
wall. Also note the Lersta
floor-lamp just behind my head and the spot of light behind the
screen from the glow of the Apple logo.
Die Hard Mac
cinema
Thu Jul 12 07:43:38 2007
Live Free or Die Hard opened last month (the TTC
streetcars in Toronto sported HUGE posters with the words "YIPEE
KI-YAY M"; and "John 6:27" in small letters, in a corner). It is
notable that "the guy who plays a Mac" (no one remembers his name) in
the famous Apple commercials, plays a computer wizard in the movie. A
colleague who saw the movie recently (well, he was asleep through
most of it) doesn't remember whether the character uses a Mac in the
movie.
We know that Bruce Willis is a Mac user, so it would be
interesting if there was a "Hello, I'm a Mac commercial" with Bruce
reprising his role as John McClane (Mc, not Mac).
Water
Thu Jul 12 12:11:28 2007
The author of Zero: The Biography of a Dangerous Idea
(review forthcoming) describe humans as, "mostly water, with a few
impurities." The table below, describing the daily intake of water
based on age and sex, is reproduced from yesterday's Globe and Mail
article about keeping hydrated in the hot summer:
Adult male | 3.2 L (13 cups) |
Adult female | 2.2 L (9 cups) |
(pregnant) | add .2 L (1 cup) |
(breastfeeding) | add 1 L (4 cups) |
Child, 4-8 | 1.2 L (5 cups) |
Child, 9-13 | 2 L (8 cups) |
Male teen | 2.6 L (11 cups) |
Female teen | 2 L (11 cups) |
Before exercising, drink .5L (2 cups), during exercise,
.1–.5 L (.5–1 cup); "sports drinks" if exercising more
than an hour. After exercise, .5 L (2 cups) for every pound of body
weight.
CUPS
Speaking of cups, CUPS (the common Unix Printing System) was
bought by Apple (in Feb. 2007). In the ensuing discussion,
<technomancy> suggested that it may have been done to prevent
CPUS from being released with the newly released GPL3 and
<goodfoot> suggest forking the project and calling it "HiCUPS"
(Hicups isn't CUPS).
CGI:IRC
Thu Jul 12 17:33:16 2007
CGI:IRC is a Perl/CGI program
that lets you access IRC from a web browser. All you need a UNIX web server
that can run perl5. It is known to work on the iPhone as the
screenshot on the site shows. The only complaint is that the channel
"disappears" when the QWERTY keyboard appears.
Book Review: Zero
book review
Sat Jul 14 11:10:54 2007
My book review of Charles Seife's, Zero: The Biography of a
Dangerous Idea, is now available on my bookshelf.
LG Touch Me MP3 player
hardware mp3
Thu Jul 19 00:44:03 2007
LG has relased an MP3 player called Touch
Me,
that uses a touchscreen
interface. The Register has a review (87
rating) of it;
my favourite excerpts:
The category of personal multi-media players is a very tricky one to
launch into with success for one simple reason, the iPod. This
product dominates the scene so completely that in just a few short
years it has achieved the transition that only mega-successful
products achieve, when the very name of the device becomes short hand
for the whole product category.
...
The touch screen approach works so well and feels so natural that
perhaps one day all players will shift to this way of operation,
perhaps even the next generation of iPod.
Upsidedown
cartography
Fri Jul 20 00:12:58 2007
Reality is a dangerous concept because everyone
tends to have a different version of it.
—Avon, Blake's 7
There is always more
than one way to look at everything. The idea of turning things
upsidedown also works in other areas of visualization:
I was teaching in a high school in 1965, my first year of public
school teaching, and I was dismayed that I wasn't able to teach all
of my student how to draw... It had always seemed to me that drawing,
compared with other kinds of learning, was easy: after all,
everything you need to know in order to draw is right there in front
of the eyes. Just look at it, see it, and draw it. "Why can't they
see what is right in front of their eyes?" I wondered. "What is the
problem?"...
Then one day, out of sheer frustration, I announced to my class,
"Right. Today we are going to draw upside down." I placed some copies
of master drawings upside down on the students' desks: I told them
not to turn the drawings right side up, and to make a copy of the
original, doing their own drawings also upside down. The students, I
believe, thought I had gone "round the bend." But the room became
suddenly quiet, and the students settled in to the task with obvious
enjoyment and concentration. When they had finished and we turned the
drawings right-side up, to my surprise and to the students' surprise,
every person in the class, not just a few, had made a good copy, a
good drawing.
—Betty Edwards, Drawing on the Artist Within
Inventing the Future
virtual cartography
Fri Jul 20 23:59:46 2007
I was showing a colleague Street View on Google Map (I started at
Palo Alto) and he mentioned that he had driven along the California
coast along Highway 1. So we "flew" over to Monterey and drove along
for a bit (beautiful beaches) and then flew over to San Francisco and
drove across the Golden Gate bridge (no jumpers to be seen anywhere;
it should also be noted that Californians tend to drive old klunkers
compared with New Yorkers, who mostly drive luxury cars).
Then, he mentioned that they never made it to Lake Tahoe because
the mountain roads were snowed-in. Trying to find Lake Tahoe, I
zoomed out a few kilometers and he observed that the Google Maps view
looked exactly how he remembered seeing it from the plane window
(except the streets weren't labeled, as I was Hybrid mode).
I said that sometime in the future, the stewardess will hand out
VR glasses, with motion sensors, to passengers and they would be able
to look out the window and the terrain below would be identified
right before their eyes as they moved their heads. Then he suggested
that it would be cool if the information was projected on the
airplane window itself and then I further suggested that if it was a
touch-screen you could ask for specific information about the terrain
below, just by touching the appropriate place on the glass.
Customized Keyboard Shortcuts
Sat Jul 21 13:34:13 2007
I found that I preferred Cmd-F to enable full-screen on DVDPlayer
rather than the default Cmd-0 because Cmd-F can be typed with one
hand. To add the Cmd-F shortcut to DVDPlayer:
- Run DVDPlayer (or the app you want to customize)
- Run System Prefs->Keyboard and Mouse
- Select the Keyboard Shortcuts tab
- Click the "+"
- Select the DVDPlayer from the "Application:" drop-down menu
- Switch to DVDPlayer and look at the menu text besides
Cmd-0; it reads Enter Full Screen
- Enter the text exactly as it appears in the menu, into
the "Menu Title:" field
- In "Keyboard Shortcut:" field, type Cmd-F
- Click Add
NOTE: If you have swapped Cmd and Alt/Option, there is an extra
step. First will need to type Cmd-F rather then
Alt-F when you fill the "Keyboard Shortcut:" field
(above). Second, with Emacs or TextEdit, open the
file,
~/Library/Preferences/com.apple.DVDPlayer.plist. Search
for the string "Enter Full Screen" and you will find something like
this:
<dict>
<key>Enter Full Screen</key>
<string>~F</string>
</dict>
Change the character in front of the "F"; it is the key modifier:
"^" represents Control, "$" represents Shift,
"~" represents Alt/Option and "@" represents
Command.
Then save the plist file.
If, like me, you tend to compress many files into a single
Archive, you may also want to add Cmd-Z as a shortcut to the Finder's
Create Archive menu entry.
PosteRazor
software posters
Sun Jul 22 10:22:04 2007
PosteRazor
is a utility for making an MxN-page poster (PDF file) given an image
file. The user-interface is a bit strange looking.
Items We Carry
photography flickr
Wed Jul 25 07:14:16 2007
On the face of it, the Items We
Carry Flickr pool is quite pedestrian (with a couple of
exceptions). However, this pool does allow one to gather statistics
on items that are are typically out of sight— hidden in
pockets, purses and backpacks— a Newton, a few iPhones, a 9mm
Beretta, a buck-knife and if there was a computer, it was invariably
a Mac. Every single one of the photos included keys— even in
the 21st century— where one would have imagined that
fingerprint readers, access-cards or voice-print would have been
common technologies.
Update Wed Jul 25 14:26:18 2007: The gun was Photoshopped,
and it's not a Newton, it's a Gemstar eBook Librarian. I couldn't
decide which person was more paranoid— the one with Charmin'
toilet-seat covers or the one with the 12 inch
machete.
Third Quarter Earnings Report
apple
Thu Jul 26 08:17:10 2007
Apple reported record-breaking sales for the third quarter ending
June 30th— notebook sales up 42% since the previous quarter and
iPod sales up 18% (9.8M sold, 71.5% of the MP3 player market). 270K
iPhones sold and 146K activated (by June 30th). Prediction of 1M
iPhones sold by September. Europe will get the iPhone by Christmas
with more than one carrier involved; Asia by Christmas 2008.
Comments:
- It looks like the analysts guesses of 500K+ phones sold in the
first three days were wildly wrong.
- Are the free iPhones that Apple employees getting considered
"sales"?
- Is the large difference in iPhone purchase vs. activation, an
indication of activation problems or are people hoarding them for
some reason; or are the numbers truncated because of the June 30th
cut-off? A combination of all of the above and sales over the web.
- Canadian availability is not even mentioned. This likely means
that the Canadian market is insignificant (30K sales perhaps).
Anti-theft System
A report
of an Apple patent for anti-theft system that disables Apple devices
when mated to an unrecognized charger.
Immobile Phones
Thu Jul 26 11:37:15 2007
Last Sunday's NY Times business section had an article about
cellular phone carriers titled, "When Mobile Phones Aren't Truly
Mobile". Being a member of that minority who still lives in the 20th
century, I was surprised about North American wireless carrier's abuse of its
user's freedom to choose and to change their minds:
In most European and Asian countries, a customer can switch carriers
in a few seconds by removing a smart card from a cellphone and
inserting a different one from a new provider. In the United States,
wireless carriers have deliberately hobbled their phones to make
flight to a competitor difficult, if not impossible.
If you, the long-suffering subscriber, decide that you have had
enough and wish to try your luck with another company, you?re free to
pay your early-termination fee and go. But you most likely will have
to abandon the phone you?ve already paid for, even when the
technology is shared by the two carriers. (Sprint, for example, whose
network is based on the CDMA standard, forbids the use of CDMA-based
cellphones obtained from Verizon.) The odds are better than even that
your cellphone is either locked by your incumbent carrier or
forbidden for use on the network by your new one.
In light of this, I don't really see it as such a big deal that
the iPhone is locked to AT&T; it seems that is how the wireless
carriers perfer to operate. Rather than complaining to Apple about
lock-in, people should be complaining to the FCC that they are
prisoners of their wireless carriers and that they have to post
"bail" if they wish to migration to another carrier.
The Hugo
Thu Jul 26 13:38:37 2007
The Hugo is an award given annually to the best scifi author; it
is also the new size for a drink at McDonald's— 42 fluid ounces
of cold beverage, for 89 cents (in some areas), containing 410
calories— that is generating controversy after complaints from
nutritionists about the unhealthy effects of "super-sized"
portions. The NY Times article, "Did McDonald's Given In to
Temptation", notes a few surprising stats about portions:
When McDonald's opened in 1955 the largest soda was 7 fluid
ounces...Now a small soda is 16 ounces, and a child's soda is 12
ounces. And what was once considered a normal adult meal is now a
child's portion. A patty the same size as the original McDonald's
hamburger and a serving of French[sic] fires, for instance, is now
offered to the children as part of the Happy Meal.
The problem with bigger portions has been well documented. They
are undoubtedly good deals. But put simply, if people are offered
more food, they eat it.
Blade Runner: Final Cut
cinema
Sat Jul 28 05:41:04 2007
I've just read about a new edition of Blade Runner, to be called,
Final Cut— "Director Ridley Scott has created a new, definitive
version of this landmark film, with scenes and special effects that
have never been shown before."
I'm happy with the Director's Cut. I've seen some of the deleted
scenes (there is one where Deckard visits a hospital to talk to the
blade runner that was shot at the interview) and they didn't
add anything to the plot or the movie.
Ridley Scott is said to have shown a picture of the Edward
Hopper's painting, Nighthawks,
to the production designers to illustrate the mood of the film. I
didn't recognize the artist or the name, but after Googling, I
recognized the picture by sight.
AJAX Tutorials from Google
web programming
Sun Jul 29 16:24:57 2007
Google has started a new
feature for university educators. The first set of teaching
materials are about AJAX programming and Distributed Systems; the
AJAX section includes tutorials on dynamic HTML, CSS and Javascript.
Damn Spam
internet
Mon Jul 30 08:26:35 2007
Nearly two million e-mails are dispatched every
second, a hundred and seventy-one billion messages a day.
Michael Specter has an article about the internet scourge known as
spam. He certainly did his research including RMS's respose to the
very first spam on the ARPAnet:
"We invite you to come see the 2020 and hear about the DECSystem-20
family," the message read. As historic lines go, it didn’t have
quite the ring of “One small step for a man,” yet Gary Thuerk's
impact cannot be disputed. When he pushed the send button, he became
the father of spam.
The reaction was immediate and almost completely hostile. "This was a
flagrant violation of the Arpanet," one recipient wrote. Another
noted that "advertising of particular products" should be strongly
discouraged on the network. The system administrator promised to
respond at once, and Thuerk was harshly reprimanded. Nevertheless,
his company sold more than twenty of the computer systems, for a
million dollars apiece. Thuerk saw no harm in his actions; he and
others viewed the network as an emerging symbol of intellectual
freedom. Even if unsolicited e-mail became a nuisance, a greater
danger would be posed by placing limits on how this powerful new tool
could be deployed.
"The amount of harm done by any of the cited 'unfair' things the
net has been used for is clearly very small," the Internet pioneer
Richard Stallman wrote a few days after the DEC e-mail. Stallman
opposed any action that would interfere with the aggressive openness
that came to define the Web. And he still does. In his message about
the DEC spam, Stallman pointed out— three decades before the
appearance of Craigs-list and Monster.com— that the network
provided a unique opportunity to advertise jobs and an entirely new
way to sell products. He went even further: "Would a dating service
on the net be 'frowned upon'...? I hope not. But even if it is, don't
let that stop you from notifying me via net mail if you start one."
Ingmar Bergman, R.I.P.
Mon Jul 30 18:53:49 2007
It is a shame that I have only seen two of his films— The Seventh Seal, and
Fanny and Alexander— both on Elwy Yost's TVO show,
Saturday Night at the Movies.
Surprises
judo plist
Tue Jul 31 21:59:42 2007
Today was an interesting day because I learned two things that
surprised me (I am rarely surprised. I would even go so far as to say
that nothing surprises me anymore, until today.)
The first surprise was Judo for blind
athletes. What is even more surprising is that blind athletes can
compete against sighted athletes.
The second surprise was discovering that XML property list files
(plist) files in OS X, beginning with Tiger, are now stored in binary
format rather than ASCII text. It is necessary to convert them to
plain text (plutil -convert xml1 foo.plist) if you need to
edit them manually (e.g. the earlier hint for
customizing keyboard shorcuts required a manual edit if Cmd and Alt
were swapped). The reason for their binary nature is because they are
easier to parse as Objective-C serialized objects.