I've used both an iBook (500 MHz G3) and a TiBook (800 MHz G4) with various versions of Mac OS X 10.1.x and 10.2.x. I'm currently using the TiBook about 8 hours per day at work.
The major preventable causes of battery drain are:
Airport card on when not necessary
Screen brightness high
Not adjusting energy saver properly
Modem off
OS 9 environment running
I can routinely get 3.5-4 hours with relatively normal usage (compile, crash, debug, etc) if I do the above. If I don't do the above, then battery life drops substantially.
I also used top to see which applications are big CPU cycle eaters.
As for heat, I recommend any of the various stands that elevate the TiBook to an angle and allows air to flow more freely underneath.
Re:Local and state governments
on
Largo Loving Linux
·
· Score: 5, Funny
Any government of the people, for the people, by the people not using an OS of the people, for the people, by the people should be ashamed of itself.
Yes, but any government of the corporations, for the corporations, by the corporations not using an OS of the corporations, for the corporations, by the corporations should similarly be ashamed of itself.
As a faculty member at a university, I advise undergraduates (and graduate students, too). There are three different answers, depending on you.
Interest level: Do you like math? How much more (or less) would you enjoy taking fun electives? This is usually your last chance to take advantage of your college experience, so pay careful attention to what you might be missing. I opted for a film making class (we used Super 8!), an advanced seminar on arcane programming, and an ancient history course rather than accumulate another major and I'm still glad I did. I enjoyed all three.
Career plans: In the absence of other factors, a double-major is better than a single major as long as your GPA doesn't suffer. Unfortunately, many people look only at GPA, not at what you learned. If taking those math classes might bring your GPA down, don't do it at this stage. It will look like you are slacking off, which is bad for business and academia. If it won't affect your GPA, then do it: it will look better in many business situations.
Grad School: Double major doesn't add anything to most admissions committees. They'll see all your math courses anyway.
I recently stayed in the Marriott in Oakland (CA) and San Francisco. Not only do they have broadband, but there is a little bag of "accessories" hanging in the closet. This includes a variety of cables and other useful items to get a laptop hooked up. Downside: Expensive. My memory is not always reliable, but it was something like $10 plus $1 a minute.
This is not new, it is old. The sounds produced by the ear are known as otoacoustic emissions. It is hard to tell from the lightweight Discover article what the new contribution from the researchers is, but the basic phenomenon is quite old and quite well understood.
The best summary information on the web is the
otoacoustic emissions web site. It has two lengthy reference sections, information on the use of otocacoustic emissions to test the hearing of new borns and infants, and lots more.
Other information on this is easily obtainable by browsing back issues of the Journal of the Acoustical Society of America.
I need to be able to upgrade video cards, monitors, sound cards, add SCSI cards, whatever. Otherwise, I'd think about buying an iMac.
How about a G4 then? It outperforms the iMac, and still costs less than the Sony. My colleague just got the new 17" LCD Panel and it is simply awesome.
LyX is also a nice front to LaTeX and works on a variety of platforms. It is available under a slightly modified GPL (the exception is that you are allowed to link LyX to the XForms library).
I found LyX and excellent way to start using LaTeX.
I'd be interested in people's comments who have used both.
The way to get an academic job in Math is the same as in most other scientific fields.
High School: Very high GPA, Very high SATs, Very good letters of recommendation, so that you can...
Get into a college/university with an excellent undergraduate math program. Then, get very high GPA, Very high GREs, and three letters of recommendation from faculty with PhDs, so that you can...
Get into a university with an excellent graduate math program. Ignore the university's overall reputation; go solely with the department's reputation. Math isn't my area, so I can't give a recommendation. However, some departments in the really prestigious schools suck. Some departments in somewhat obscure state schools trounce the Ivies. Get solid advice. Then, get publications. The more pubs the better. Do an outstanding dissertation in a reasonable amount of time. Get excellent letters. Then...
Get a job. I like to tell our recent PhDs that once they get a job, all they have to do to keep it is to do 2 dissertations per year plus bring in money plus teach! There will be several hundred applicants for each job. Post doc experience can help. Then publish, publish, publish, get grants, get grants, get grants. Teaching is secondary. In many places, reverse the order: grants count more than pubs. Some places are even specifying how much in grant money you must bring in.
Get tenure. Tenure is all or none: if you get it, life is good and it is why people put up with all the crap above and the below-industry salary and the outdated infrastructure and the administration. If you don't get it, you are a failure and will find it hard to get any other job in academia.
If you like doing your own research, you cannot beat a tenured faculty position. If you don't mind someone else telling you the general research area, then go into industry.
Second, why are these people having to forward their mail at all?
To make life a little easier. If you have a bunch of email accounts, it is nice to have all email.forwarded to one account. Then, you can check all your email at once. Your alternatives will work, but they aren't as convenient for most of the fluff email accounts that many people (myself included) set up.
My G4 Cube 500 froze during prebinding, but although the mouse still moved, nothing else worked. I have telnet off, but ssh on. I could not ssh into the box.
However, after forcing a reboot, it booted just fine. Manual prebinding worked, and the system has been running for over 24 hours now with no problem.
10 out of 10 for robust crash recovery, but -10 for freezing in the first place.
OpenBSD works well on PPC Macs. It can co-exist with Mac OS. Of course, there's always NetBSD, which runs on pretty much everything.
If installing Linux, I suggest Debian GNU/Linux. I've had better luck with their distro on PPC Macs than other distributions. (Maybe I'm just more used to apt than RPM.)
You might also want to check out MacOnLinux, which lets you run MacOS on top of Linux.
You can get an iBook for $1200, although I got the CD-RW model. It has dual USB, ethernet, modem, CD (ROM, RW, or DVD is a choice). No floppy, but who still uses floppies?
Mac OS 9.1 flies, OS X 10.04 is solid and each update is faster. OS X 10.1 (the worst thing about it is the name) will be out in September and is very fast. You can also run Linux (with the way cool MacOnLinux), Darwin, NetBSD, and OpenBSD. I run OS X for Java and C development, OS 9 for conserving battery life and word processing.
The size and weight are outstanding for travel, and as long as you are not running the CPU at 100%, you can get up to 5 hours on one battery charge. Plus, you can use regular video out or can run the video through a regular TV (or VCR, Camcorder, etc).
Around 1:30 EST (we don't do daylight savings), Purdue University's connectivity disappeared (all Internet, Internet2, regional campus, IHETS, and other wide-area links went down).
Due to publicity, everyone thought, "Oh no, Code Red!"
It turns out a contractor dug through one of Verizon's major fiber optic cables. Surprisingly, some cell phone connectivity was also out (along with Sprint and AT&T long distance).
As long as there are systems, they will be hacked. They may not look like current systems, and the hacking might be harder, but so much the better.
Re:Sick of hearing about "such a great design"
on
Apple Dumps the Cube
·
· Score: 1
people who seriously factor the appearance of a computer into their buying choices are idiots
Right: I'd much rather have a seriously ugly, very noisy, way too large generic box. That's why Apple's sales are going up and PC makers' sales are going down.
Name a PC manufacturer who isn't laying off people?
"Did you see the new G4 cube? It's a thing of beauty!"
"Yeah, well, so's Cindy Margolis, but you can't run Quicken on her."
But you can run Quicken on the G4 Cube. I am typing this on a Cube that runs Quicken!, although I haven't personally tried running it on Cindy Margolis.
Given the strength of the statements above, I'd like to add a different spin.
I installed LinuxPPC 2000 a month or so ago on a PowerPC 7200/90. The computer booted off the CD (obtained from linuxiso.org), installed, and then ran just fine. The boot loader lets you choose to boot either Mac OS (7.5 in my case) or LinuxPPC. Simply pressing TAB stops the count-down timer to stop automatic booting.
Two differences between my installation and yours: I installed on a second drive rather than on the same drive as Mac OS. Second, I have old world roms rather than new world roms.
Slashdot Mirror
The major preventable causes of battery drain are:
- Airport card on when not necessary
- Screen brightness high
- Not adjusting energy saver properly
- Modem off
- OS 9 environment running
I can routinely get 3.5-4 hours with relatively normal usage (compile, crash, debug, etc) if I do the above. If I don't do the above, then battery life drops substantially.I also used top to see which applications are big CPU cycle eaters.
As for heat, I recommend any of the various stands that elevate the TiBook to an angle and allows air to flow more freely underneath.
Yes, but any government of the corporations, for the corporations, by the corporations not using an OS of the corporations, for the corporations, by the corporations should similarly be ashamed of itself.
Of course he didn't. Al Gore did. Just ask him.
How about WE APOLOGISE FOR THE INCONVENIENCE, preferably in the form of giant flaming letters.
According to ESPN, Nick and Sarah Arena named their new son Joe Louis Arena. A good way to guarantee Red Wings tickets.
But as Dirk Gently rejoins, "I reject that entirely...The impossible often has a kind of integrity to it which the merely improbable lacks."
I recently stayed in the Marriott in Oakland (CA) and San Francisco. Not only do they have broadband, but there is a little bag of "accessories" hanging in the closet. This includes a variety of cables and other useful items to get a laptop hooked up. Downside: Expensive. My memory is not always reliable, but it was something like $10 plus $1 a minute.
The best summary information on the web is the otoacoustic emissions web site. It has two lengthy reference sections, information on the use of otocacoustic emissions to test the hearing of new borns and infants, and lots more.
Other information on this is easily obtainable by browsing back issues of the Journal of the Acoustical Society of America.
How about a G4 then? It outperforms the iMac, and still costs less than the Sony. My colleague just got the new 17" LCD Panel and it is simply awesome.
I found LyX and excellent way to start using LaTeX.
I'd be interested in people's comments who have used both.
-
OpenBSD
-
MacOnLinux which lets you run Mac OS on top of Linux
-
Darwin which lets you run the X server and related programs
-
Windows if you have to via emulation (which is also very fast.
Plus, it is a seriously cool piece of hardware. For those on more of a budget, the iBook runs all of these also.-
High School: Very high GPA, Very high SATs, Very good letters of recommendation, so that you can...
-
Get into a college/university with an excellent undergraduate math program. Then, get very high GPA, Very high GREs, and three letters of recommendation from faculty with PhDs, so that you can...
-
Get into a university with an excellent graduate math program. Ignore the university's overall reputation; go solely with the department's reputation. Math isn't my area, so I can't give a recommendation. However, some departments in the really prestigious schools suck. Some departments in somewhat obscure state schools trounce the Ivies. Get solid advice. Then, get publications. The more pubs the better. Do an outstanding dissertation in a reasonable amount of time. Get excellent letters. Then...
-
Get a job. I like to tell our recent PhDs that once they get a job, all they have to do to keep it is to do 2 dissertations per year plus bring in money plus teach! There will be several hundred applicants for each job. Post doc experience can help. Then publish, publish, publish, get grants, get grants, get grants. Teaching is secondary. In many places, reverse the order: grants count more than pubs. Some places are even specifying how much in grant money you must bring in.
-
Get tenure. Tenure is all or none: if you get it, life is good and it is why people put up with all the crap above and the below-industry salary and the outdated infrastructure and the administration. If you don't get it, you are a failure and will find it hard to get any other job in academia.
If you like doing your own research, you cannot beat a tenured faculty position. If you don't mind someone else telling you the general research area, then go into industry.Second, why are these people having to forward their mail at all? To make life a little easier. If you have a bunch of email accounts, it is nice to have all email .forwarded to one account. Then, you can check all your email at once. Your alternatives will work, but they aren't as convenient for most of the fluff email accounts that many people (myself included) set up.
However, after forcing a reboot, it booted just fine. Manual prebinding worked, and the system has been running for over 24 hours now with no problem.
10 out of 10 for robust crash recovery, but -10 for freezing in the first place.
If installing Linux, I suggest Debian GNU/Linux. I've had better luck with their distro on PPC Macs than other distributions. (Maybe I'm just more used to apt than RPM.)
You might also want to check out MacOnLinux, which lets you run MacOS on top of Linux.
Finally, there's always Darwin and X Windows!
Potentially humorous, but factually incorrect.
Purdue's estimated cost for 1 year (for in state students) is $12,000. That's tuition + room + board + books + misc. fees.
UCLA costs about the same.
You could sent two students to either Purdue or UCLA for less than the cost for 1 student at Duke.
The University of Illinois is also more expensive.
Mac OS 9.1 flies, OS X 10.04 is solid and each update is faster. OS X 10.1 (the worst thing about it is the name) will be out in September and is very fast. You can also run Linux (with the way cool MacOnLinux), Darwin, NetBSD, and OpenBSD. I run OS X for Java and C development, OS 9 for conserving battery life and word processing.
The size and weight are outstanding for travel, and as long as you are not running the CPU at 100%, you can get up to 5 hours on one battery charge. Plus, you can use regular video out or can run the video through a regular TV (or VCR, Camcorder, etc).
The only negative is the speakers suck.
Due to publicity, everyone thought, "Oh no, Code Red!"
It turns out a contractor dug through one of Verizon's major fiber optic cables. Surprisingly, some cell phone connectivity was also out (along with Sprint and AT&T long distance).
Low tech beats high tech yet again!
As long as there are systems, they will be hacked. They may not look like current systems, and the hacking might be harder, but so much the better.
Right: I'd much rather have a seriously ugly, very noisy, way too large generic box. That's why Apple's sales are going up and PC makers' sales are going down.
Name a PC manufacturer who isn't laying off people?
[sparky:~] red% Bill Gates
OK? kill Gates?
"Yeah, well, so's Cindy Margolis, but you can't run Quicken on her."
But you can run Quicken on the G4 Cube. I am typing this on a Cube that runs Quicken!, although I haven't personally tried running it on Cindy Margolis.
I installed LinuxPPC 2000 a month or so ago on a PowerPC 7200/90. The computer booted off the CD (obtained from linuxiso.org), installed, and then ran just fine. The boot loader lets you choose to boot either Mac OS (7.5 in my case) or LinuxPPC. Simply pressing TAB stops the count-down timer to stop automatic booting.
Two differences between my installation and yours: I installed on a second drive rather than on the same drive as Mac OS. Second, I have old world roms rather than new world roms.
No problems to date; rock solid distro.