Re:Sudo is only useful when there are lots of admi
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Sudo vs. Root
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· Score: 3, Informative
Read the sudo manpage. After you authenticate for the first sudo command, subsequent invocations won't require a password for a set interval of time (default is 5 minutes, unless overridden in/etc/sudoers).
Either the sales people were clueless and/or trying to sell more expensive models (probable), or I smell bullshit (possible).
I just bought a phone from Verizon's online store, and 7 of the 15 phone models don't have cameras. If you want a PDA/phone combo, 3 of the 4 models they sell don't have a camera (counting the Treo 600, which can be purchased with or without the camera for the same price.)
Reminds me of a project I saw awhile ago...
on
Fluid Logic Chips
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· Score: 1
Reminds me of something I saw a year or two ago. A guy at the MIT Media Lab created AND and XOR gates using water pressure. By using those in combinations, you could derive the other basic gates you needed.
Of course, it had the problems that your circuits had to be arranged vertically, and you couldn't have sequential circuits. But it wasn't intended for serious use, but as a teaching tool to help people understand binary logic.
The most interesting thing about sign language(s) is that the basic symbols use only movements of the hand and wrist. Thus, the spatial position of the hand can be used to encode additional information.
For example, say I am signing about Alice and Bob. Whenever I make a comment about Alice, I do it with my hand down by my left hip. Whenever I make a comment about Bob, I do it with my hand up by my right shoulder. Having established the convention that "down by my left hip" means Alice and "up by my right shoulder" means Bob, I can sign the sentence "Alice hits Bob" by simply making the sign for "hits" as I move my hand from my left hip up to my right shoulder. I don't need to explicitly sign the words Alice or Bob because the spatial movement of my hand codes the subject and object.
This is something that doesn't exist in spoken language. The closest analogy would be reading dialogue, and using a different tone of voice for each character. Where this analogy falls short is that we would never change the pitch of our voice while speaking to imply an action.
(I originally came across this in a Scientific American article some years ago in which researchers were studying whether Broca's aphasia and Wernicke's aphasia existed in deaf speakers.)
I'm not sure what the status is on Windows or Linux, but for OS X, both iChat and AOL's AIM client have been able to automatically log IMs for a while now. I prefer the AIM client, as it stores logs in HTML format. iChat stores them as binary files, which preserve buddy icons and all that jazz, but are harder to grep from the command line.
Basically, Taylor was ousted from the company for decrying the then-current practice of New York wineries mixing water and California juices in with their wines. He believed it was corrrupting the quality of his family's wine recipes. (Sound like any other company we know?)
There would seem to be no compelling reason to use software update for a patch that's for a still-developers-only product. 1) It does make it easier for those developers to get it. But the bigger reason I see is that since pretty much everyone who has Panther will install this, Apple would get a decent count of the number of installed copies of Panther, and from that a fairly decent estimate of the amount of piracy.
Personally, I could download it, but I'll just wait until August when they release it. One of the big reasons I like Macs so much is that they just work, and installing a prerelease version of an OS while they're still tweaking it and fixing bugs means goodbye to that.
The OS and associated libraries will take care of the actual communication between the nodes. To this end, you can use any platform/OS and language that has support for it. However, it's still up to you, the application developer, to figure out how to parallelize your code. Some tasks lend themselves easily to this, some do not, and some can't be parallelized at all.
At my work, we develop for a smattering of platforms, ranging from Linux, MacOS X and Cygwin to Solaris, IRIX, and a plethora of custom-built supercomputers. It's all done using C++ and MPI. MPI is a standard that specifies how nodes communicate with each other, and what methods/functions are called to do this. MPICH is an implementation put out by Arlington National Labs. LAM is another implementation, put out by Indiana University. LAM is a much nicer implementation IMO, but it's not available on quite as many platforms.
Bottom line: If you have computationally intensive calculations to do, beowulf clusters are a cheap alternative to pricey supercomputers. But if you've just heard they're cool but don't have anything to do with one, it's probably not worth it, as applications have to be specifically (re)written to take advantage of a cluster, they don't get automagically faster.
Yet the same people who would become incensed about the public library being challenged would not think twice about condemning the sharing of a digital copy over the Internet. I am sorry, but I simply fail to see the fundamental difference between the two. Both mediums allow me to read the book without paying for it.
The difference is that with a library, there's still only a fixed number of copies. You check out a book, read it, then return it. Nobody else can be reading that book while you have it checked out. With the internet and digital media, that restriction is removed. Downloading something to your computer does not deprive anyone else of being able to use it. You have created *a new copy* of that media. A new copy which was never paid for. And that's why they're seen differently.
To give a further example: My local library has a fairly large collection of audio CDs you can check out. It is legal for me to take that CD home, listen to it, rip it into my computer, basically do whatever I want with it. As long as I relinquish all copies of it when I return the CD. If I keep the mp3s I have on my computer after I return the CD, that's not legal.
Although in actuality, a google search on java doesn't turn up any Java-Coffee links in all 68 pages of results. The island of Java first shows up on page 14.
I first started programming in BASIC on an Apple//e when I was in 2nd grade or so. I taught myself to program mainly by looking at the source of other programs, experimenting with what the different statements did, and playing around with it.
When I was in Junior High, I learned some basic HTML in much the same way. Every computer already has the "tools" you need to do that, a text editor and a web browser, it's easy for me to picture a kid naturally progressing from simple HTML to some Javascript, and then either to Java, or to CGI/Perl/etc. The problem with this is that I doubt that many websites use "plain" HTML anymore. On the rare occasion that I look through the source of a webpage nowadays, it takes me several minutes to find what I'm looking for, and I know what all that code does. I think it would be quite inscrutable to someone just putting their feet in.
On a different note, the article complains about programming tools not being included in the set of apps that come with the OS. MacOS X does come with the very nice (and free) Project Builder, which is a joy to use, and I've used it to write C and C++ code, using OpenGL. (It also does Java and Objective C). Because OpenGL is a cross-platform standard, and since ProjectBuilder uses gcc to compile C/C++ code, it's trivial to port it to Unix or Linux. I can vouch for this personally, having moved large projects for an undergraduate Computer Graphics course back and forth between OSX and Solaris&IRIX, and only having to change the path for the OpenGL header files.
The parent poster is quite correct. The program doing these nuclear simulations is run by the Department of Energy and is called ASCI (Advanced Simulation and Computing Initiative). This has fueled quite a bit of research, both in developing new supercomputers, and in developing high-performance algorithms to run on them. ASCI also has the tightest quality-assurance requirements I've ever seen. Also, I can't speak for the hardware, but the software packages I work on are (eventually) released under the LGPL, as is most/all federally-funded research.
And once you're in the monitor, typing ! would bring up the mini-assembler (if memory serves me right). Steve Wozniak wrote Integer Basic for the Apple II completely from the mini-assembler.
This reminds me of a fundamental schism among open source / free software / linux developers. On the one hand, there is the group that holds strong political views, and believes that software patents will hurt open software developers. On the other hand are the developers who just want to release code, and don't worry or care about the legal ramifications terribly much. This can be seen in the GNU Emacs / XEmacs split. (more info here and here).
And as usual, both groups think the other is giving open source a bad name. (not trolling, just my observation).
martiann. A packet sent on a TCP/IP network with a source address of the test loopback interface [127.0.0.1]. This means that it will come back labeled with a source address that is clearly not of this earth. "The domain server is getting lots of packets from Mars. Does that gateway have a martian filter?"
Guess we'll have to change that one once IPN is a reality...
There is a possibility of people saying "In theory, our computers could do this..." But as soon as something makes it as far as actually being implemented, it's no longer fantasy but already in the realm of science. This is why there's very little "fantasy" in the computing world.
I don't think it's a hoax, I just can't see how it could work. He plans to use refurbished & surplus parts. Ok, but there's only a limited supply of these, AFAIK they're not being made anymore. Also, by the laws of supply and demand, once he starts churning them out, the demand goes up, the supply goes down, and the price for those specific components goes up. Perhaps he could go with a rolling spec, using up his supply of one speed of G3/G4, then move onto the next notch up, and hope Apple makes enough newer Macs to provide a steady stream of older ones. If we've learned anything from Apple & Motorola, that's a nasty situation to get into, and a horrible one to willingly start out from.
it would be nice to have a 64-bit web server whose source code was itself pornographic. I'm releasing the concept under a license which says that all resulting code must be GPLed.
A better idea would be to release it under a licence which says that all resulting code must be GPLed AND pornographic. This would result not only in more free-as-in-Stallman code, but also more porn! And porn that you have a legitimate reason for looking at at work!
Slashdot Mirror
Read the sudo manpage. After you authenticate for the first sudo command, subsequent invocations won't require a password for a set interval of time (default is 5 minutes, unless overridden in /etc/sudoers).
And now it's being slashdotted.
Sadly, their selection of tri-mode phones is dismal, and that of cheap bluetooth phones is nonexistent.
I just bought a phone from Verizon's online store, and 7 of the 15 phone models don't have cameras. If you want a PDA/phone combo, 3 of the 4 models they sell don't have a camera (counting the Treo 600, which can be purchased with or without the camera for the same price.)
Of course, it had the problems that your circuits had to be arranged vertically, and you couldn't have sequential circuits. But it wasn't intended for serious use, but as a teaching tool to help people understand binary logic.
http://web.media.mit.edu/~paulo/courses/howmake/ml fabfinalproject.htm
For example, say I am signing about Alice and Bob. Whenever I make a comment about Alice, I do it with my hand down by my left hip. Whenever I make a comment about Bob, I do it with my hand up by my right shoulder. Having established the convention that "down by my left hip" means Alice and "up by my right shoulder" means Bob, I can sign the sentence "Alice hits Bob" by simply making the sign for "hits" as I move my hand from my left hip up to my right shoulder. I don't need to explicitly sign the words Alice or Bob because the spatial movement of my hand codes the subject and object.
This is something that doesn't exist in spoken language. The closest analogy would be reading dialogue, and using a different tone of voice for each character. Where this analogy falls short is that we would never change the pitch of our voice while speaking to imply an action.
(I originally came across this in a Scientific American article some years ago in which researchers were studying whether Broca's aphasia and Wernicke's aphasia existed in deaf speakers.)
I'm not sure what the status is on Windows or Linux, but for OS X, both iChat and AOL's AIM client have been able to automatically log IMs for a while now. I prefer the AIM client, as it stores logs in HTML format. iChat stores them as binary files, which preserve buddy icons and all that jazz, but are harder to grep from the command line.
Oddly, "I WANT TO SEE JEFF BEZOS NAKED" returns about 5,210 hits. "I WANT TO SEE JEFF BEZOS FULLY CLOTHED" only returns about 281 hits. Very strange things afoot indeed.
It's been on since about 10 or 11 PM CST Wednesday night.
The court injunction can be found here.
Well, that would explain linux now wouldn't it?
Personally, I could download it, but I'll just wait until August when they release it. One of the big reasons I like Macs so much is that they just work, and installing a prerelease version of an OS while they're still tweaking it and fixing bugs means goodbye to that.
At my work, we develop for a smattering of platforms, ranging from Linux, MacOS X and Cygwin to Solaris, IRIX, and a plethora of custom-built supercomputers. It's all done using C++ and MPI. MPI is a standard that specifies how nodes communicate with each other, and what methods/functions are called to do this. MPICH is an implementation put out by Arlington National Labs. LAM is another implementation, put out by Indiana University. LAM is a much nicer implementation IMO, but it's not available on quite as many platforms.
I would recommend these two books: How to Build a Beowulf and High-Performance Computing.
Bottom line: If you have computationally intensive calculations to do, beowulf clusters are a cheap alternative to pricey supercomputers. But if you've just heard they're cool but don't have anything to do with one, it's probably not worth it, as applications have to be specifically (re)written to take advantage of a cluster, they don't get automagically faster.
The difference is that with a library, there's still only a fixed number of copies. You check out a book, read it, then return it. Nobody else can be reading that book while you have it checked out. With the internet and digital media, that restriction is removed. Downloading something to your computer does not deprive anyone else of being able to use it. You have created *a new copy* of that media. A new copy which was never paid for. And that's why they're seen differently.
To give a further example: My local library has a fairly large collection of audio CDs you can check out. It is legal for me to take that CD home, listen to it, rip it into my computer, basically do whatever I want with it. As long as I relinquish all copies of it when I return the CD. If I keep the mp3s I have on my computer after I return the CD, that's not legal.
I think the funniest part is the guy wearing black socks with white tennis shoes.
Although in actuality, a google search on java doesn't turn up any Java-Coffee links in all 68 pages of results. The island of Java first shows up on page 14.
When I was in Junior High, I learned some basic HTML in much the same way. Every computer already has the "tools" you need to do that, a text editor and a web browser, it's easy for me to picture a kid naturally progressing from simple HTML to some Javascript, and then either to Java, or to CGI/Perl/etc. The problem with this is that I doubt that many websites use "plain" HTML anymore. On the rare occasion that I look through the source of a webpage nowadays, it takes me several minutes to find what I'm looking for, and I know what all that code does. I think it would be quite inscrutable to someone just putting their feet in.
On a different note, the article complains about programming tools not being included in the set of apps that come with the OS. MacOS X does come with the very nice (and free) Project Builder, which is a joy to use, and I've used it to write C and C++ code, using OpenGL. (It also does Java and Objective C). Because OpenGL is a cross-platform standard, and since ProjectBuilder uses gcc to compile C/C++ code, it's trivial to port it to Unix or Linux. I can vouch for this personally, having moved large projects for an undergraduate Computer Graphics course back and forth between OSX and Solaris&IRIX, and only having to change the path for the OpenGL header files.
The parent poster is quite correct. The program doing these nuclear simulations is run by the Department of Energy and is called ASCI (Advanced Simulation and Computing Initiative). This has fueled quite a bit of research, both in developing new supercomputers, and in developing high-performance algorithms to run on them. ASCI also has the tightest quality-assurance requirements I've ever seen. Also, I can't speak for the hardware, but the software packages I work on are (eventually) released under the LGPL, as is most/all federally-funded research.
And once you're in the monitor, typing ! would bring up the mini-assembler (if memory serves me right). Steve Wozniak wrote Integer Basic for the Apple II completely from the mini-assembler.
And as usual, both groups think the other is giving open source a bad name. (not trolling, just my observation).
Guess we'll have to change that one once IPN is a reality...
That sounds like a rave to me.
There is a possibility of people saying "In theory, our computers could do this..." But as soon as something makes it as far as actually being implemented, it's no longer fantasy but already in the realm of science. This is why there's very little "fantasy" in the computing world.
I don't think it's a hoax, I just can't see how it could work. He plans to use refurbished & surplus parts. Ok, but there's only a limited supply of these, AFAIK they're not being made anymore. Also, by the laws of supply and demand, once he starts churning them out, the demand goes up, the supply goes down, and the price for those specific components goes up. Perhaps he could go with a rolling spec, using up his supply of one speed of G3/G4, then move onto the next notch up, and hope Apple makes enough newer Macs to provide a steady stream of older ones. If we've learned anything from Apple & Motorola, that's a nasty situation to get into, and a horrible one to willingly start out from.
A better idea would be to release it under a licence which says that all resulting code must be GPLed AND pornographic. This would result not only in more free-as-in-Stallman code, but also more porn! And porn that you have a legitimate reason for looking at at work!