Do they hold down user id's that are only used for astroturfing? (And disguising astroturfing?) Does Microsoft? Do IBM? Of course. They would be in dereliction of duty not to. It's one of the web's most important fora. And anyone can have their $0.02. Are they getting ready to respond to stories such as these even before they have entered the Mysterious Future?
The only way to "back up" execution is to save your state as you go.
This is only true in as much as it is tautological: ie if your computing device is reversible then by definition you have an effective way of recovering all previous states, ie they are 'saved'.
In fact, Richard P Feynman, in his Lectures on Computation, talks a lot about reversible computation. the way to do this is to use reversible logic gates: instead of AND and NOT, there are 3 gates, NOT, CONTROLLED NOT, and CONTROLLED CONTROLLED NOT. These 3 can perform any logic operation that can be done using AND and NOT.
The difference is that they each have the same number of input and output lines; CONTROLLED NOT has two of each, CONTROLLED CONTROLLED NOT has 3 of each. Their effects are all reversible: if you know the 2 outputs of CONTROLLED NOT, you can recreate the unique possible inputs, in the same way that if the output from a NOT gate is 1, you know the input was 0.
If you use these, rather than conventional logic gates to build a computer, then you automatically can recreate its past states. There's no need to have 'save' data about the current state of the machine to external output
This is apparently being done (or at least researched) at the University of G(h)ent
No. Because if Yahoo! did it, it would be cluttered with ads and unusable, but if google does it, it is a new useful service that is interesting and makes intelligent use of new implementation of current technologies
This is exactly the attitude that has turned the front page of/. into adspace for any new crap google think they're going to dominate the world with this week.
Google provide a pretty decent search engine. In fact it's probably the best. This does not mean that their 'beta' email system is any better than anyone else's, that they are a benevolent company who love technology for it's own sake, that they are the future of the Internet, or indeed that they are trying to do anything other than maximise shareholder value by providing marketable web services.
You can't just change the code around a bit, and charge 100$ for it, and not give the customer anything.
Yes you can. The GPL allows this. You just might not get too many customers.
Also note that the download of CherryOS is a *trial* download. You are supposed to be allowed to download the thing for free since it's GPL'd code.
Also wrong. The GPL says that if you redistribute, you must make source code available to your customers, and give them the same rights you have. It doesn't say you have to give anything away.
I personally carry around an FM radio that weighs a couple of ounces, cost GB£3 with earphones, takes cheap-ass AAA batteries without draining them too fast, and scans for stations automatically, and has a built in light.
It's orders of magnitude cheaper and lighter than an ipod, has no mugging value, and doesn't lock you in to proprietary music formats:)
The ironic thing is I only bought it for the headphones, cause I wanted to listen to Internet radio here on the computers at school, couldn't get the damn media player to work, and realised I might as well use the 'free' radio.
if you read the article, the danger comes from a combination of the heat generated by the laptop, and the fact that when you balance one on your knees, you tend to sit with your legs closer together than you normally would, thus preventing air flow from cooling you down as much.
What we write is only predictable to the extent that it is redundant: ie when i type "tomor" into my mobile phone, if it's obvious to the phone i'm going to write "tomorrow", i could just send a msg saying "C U tomor".
It doesn't seem to me that there's anything like as much redundancy in mathematical formulae as there is in written language. When the professor writes "X=..." on the board, it's very hard to predict the next symbol unless you know what x is in fact equal to.
Newton himself said of his work that he was only "standing on the shoulders of giants" meaning that if he had discovered new knowledge, it was from the ideas put down by euclid, archimedes etc before him. (This phrase is engraved round the edge of £2 coins in the UK, since Newton also invented milling the edges of coins to prevent people from clipping them.) However, he was probably being too modest. It wasn't just calc: this guy basically went away at some point in his life and came up with: His laws of motion, which explained pretty much every physical phenomenom then studied. His theory of gravity, which relates the movement of celestial bodies back to the laws of motion. and The differential calculus, which provided the maths necessary to apply all this. He also did work in optics and other fields, and invented the catflap. If anyone surpasses him as a physicist, it must be Einstein. If anyone surpasses him both as a physicist and a mathematician, it's news to me. Respect is due.
Record companies and music publishing companies are completely different things.
Record companies produce records, publishing companies protect and promote songwriters copyrights in their compositions, not the copyrights of recorded material.
I had exactly the same experience as you when I saw Episode 2 the first night. Everyone cheered Yoda. This is the only reason I wld ever bother going to the cinema, andI don't think I've had an experience like that since.
A cinema ticket here costs GB£7 - 10, maybe £5 for students. Straight away a movie is released in the states - before it comes out here - you can buy pirate DVDs (of varying quality) for £5 in most pubs.
So I never go to the movies anymore. Even if I don't buy the DVD or borrow it from a friend, just the knowledge that I will be able to is enough to hold me back from spending more at the cinema.
Maybe for the next Star Wars.
Slashdot Mirror
Do they hold down user id's that are only used for astroturfing? (And disguising astroturfing?)
Does Microsoft?
Do IBM?
Of course. They would be in dereliction of duty not to. It's one of the web's most important fora. And anyone can have their $0.02.
Are they getting ready to respond to stories such as these even before they have entered the Mysterious Future?
The only way to "back up" execution is to save your state as you go.
This is only true in as much as it is tautological: ie if your computing device is reversible then by definition you have an effective way of recovering all previous states, ie they are 'saved'.
In fact, Richard P Feynman, in his Lectures on Computation, talks a lot about reversible computation. the way to do this is to use reversible logic gates: instead of AND and NOT, there are 3 gates, NOT, CONTROLLED NOT, and CONTROLLED CONTROLLED NOT. These 3 can perform any logic operation that can be done using AND and NOT. The difference is that they each have the same number of input and output lines; CONTROLLED NOT has two of each, CONTROLLED CONTROLLED NOT has 3 of each. Their effects are all reversible: if you know the 2 outputs of CONTROLLED NOT, you can recreate the unique possible inputs, in the same way that if the output from a NOT gate is 1, you know the input was 0.
If you use these, rather than conventional logic gates to build a computer, then you automatically can recreate its past states. There's no need to have 'save' data about the current state of the machine to external output
This is apparently being done (or at least researched) at the University of G(h)ent
They breathe air at Google?
Yes you can. The GPL allows this. You just might not get too many customers.
Also note that the download of CherryOS is a *trial* download. You are supposed to be allowed to download the thing for free since it's GPL'd code.
Also wrong. The GPL says that if you redistribute, you must make source code available to your customers, and give them the same rights you have. It doesn't say you have to give anything away.
Linux cannot survive without the Internet
But could the Internet survive without Linux?
WTF? 'Raid array'?? It does appear relevant to the whole of the 1st part of the article.
Beer is not a luxury.
I personally carry around an FM radio that weighs a couple of ounces, cost GB£3 with earphones, takes cheap-ass AAA batteries without draining them too fast, and scans for stations automatically, and has a built in light.
:)
It's orders of magnitude cheaper and lighter than an ipod, has no mugging value, and doesn't lock you in to proprietary music formats
The ironic thing is I only bought it for the headphones, cause I wanted to listen to Internet radio here on the computers at school, couldn't get the damn media player to work, and realised I might as well use the 'free' radio.
the page you linked to does not give the plural of 'box' as 'boxes' anywhere.
if you read the article, the danger comes from a combination of the heat generated by the laptop, and the fact that when you balance one on your knees, you tend to sit with your legs closer together than you normally would, thus preventing air flow from cooling you down as much.
+1: Obvious joke?
Tsh, Ksh or Sh.
not just implied oral permission.
Users are not programmers. That's why programmers have jobs.
You don't have to know how to internal combustion works (or even what it is) to change your oil and maintain your car.
Shldn't that be
12 min/$ or 0.083 $/min for movies
48 min/$ or 0.021 $/min for games?
Did you ever consider that perhaps my sig is tongue-in-cheek? not after i read yr journal. :)
pranged?
What we write is only predictable to the extent that it is redundant: ie when i type "tomor" into my mobile phone, if it's obvious to the phone i'm going to write "tomorrow", i could just send a msg saying "C U tomor".
It doesn't seem to me that there's anything like as much redundancy in mathematical formulae as there is in written language. When the professor writes "X=..." on the board, it's very hard to predict the next symbol unless you know what x is in fact equal to.
Newton himself said of his work that he was only "standing on the shoulders of giants" meaning that if he had discovered new knowledge, it was from the ideas put down by euclid, archimedes etc before him.
(This phrase is engraved round the edge of £2 coins in the UK, since Newton also invented milling the edges of coins to prevent people from clipping them.)
However, he was probably being too modest. It wasn't just calc: this guy basically went away at some point in his life and came up with:
His laws of motion, which explained pretty much every physical phenomenom then studied.
His theory of gravity, which relates the movement of celestial bodies back to the laws of motion.
and
The differential calculus, which provided the maths necessary to apply all this.
He also did work in optics and other fields, and invented the catflap.
If anyone surpasses him as a physicist, it must be Einstein.
If anyone surpasses him both as a physicist and a mathematician, it's news to me.
Respect is due.
Record companies and music publishing companies are completely different things.
Record companies produce records, publishing companies protect and promote songwriters copyrights in their compositions, not the copyrights of recorded material.
Why?
I had exactly the same experience as you when I saw Episode 2 the first night. Everyone cheered Yoda. This is the only reason I wld ever bother going to the cinema, andI don't think I've had an experience like that since. A cinema ticket here costs GB£7 - 10, maybe £5 for students. Straight away a movie is released in the states - before it comes out here - you can buy pirate DVDs (of varying quality) for £5 in most pubs. So I never go to the movies anymore. Even if I don't buy the DVD or borrow it from a friend, just the knowledge that I will be able to is enough to hold me back from spending more at the cinema. Maybe for the next Star Wars.