DARK HELMET: So the combination is 1,2,3,4,5... That's the stupidest combination I've ever heard in my life! That's the kind of thing an idiot would have on his luggage. PRESIDENT SKROOB:.... 1,2,3,4,5. That's amazing I've got the same combination on my luggage.
This is probably a good place to mention badram, the linux kernel patch that lets you use slightly defective memory modules.
You can use memtest to generate a list of bad areas in ram, and the badram patch reserves those blocks of memory on boot such that nobody can ever use them, effectively giving you a working stick of ram, only a little bit smaller than it is marked for.
If you're like me, you have a couple of cheapo sticks from who knows where that don't exactly work, and this patch is perfect for reviving those sticks.
Other forms of disk scheduling are a little more simple. Assume that the disk is really slow, and lots of requests are coming in that are buffered somewhere. Obviously you want to handle requests that are close to where the disk head currently is since it is faster and you won't have your head going all over the place.
FCFS (first come first serve) - easy stupid way. Take requests as they come. If you need front end front end, performance suffers because obviously you want to do front front end end.
SSTF (shortest seek time first) - do the request that is shortest to the head first. The problem with this is if you keep asking for stuff at the front of the disk and have a lone request for the end of the disk, the lone request could get ignored for a long time (starved) since the scheduler does the stuff at the front since seek times are much lower.
SCAN - the head starts at one end of the disk and goes to the end, servicing requests along the way, but never going back so that that lone request from the previous method does get serviced. When it gets to the end the head moves back toward the front, servicing requests along the way. It keeps going back and forth.
C-SCAN -Variant of SCAN where it doesn't go back and forth. It goes from front to back servicing requests then goes all the way back to the front before it starts servicing again. It gives more uniform times because if you're using SCAN and your request at the beginning is just missed by the head, you have to wait until it goes all the way to the other end and comes all the way back. In this method it goes to the end and then you're the next request to be serviced if you are at the beginning.
LOOK - The same as CSCAN and SCAN except it doesn't blindly go to the end of the disk; it stops and turns around when there aren't any more requests in the direction. Of course, if you show up right after the head changes direction, sucks to be you:)
A man finds a lamp and poof, out comes a genie who gives him 3 wishes.
The man's first wish is to live forever and it is granted.
Then he realizes that eventually the universe will end so he wishes for the hubble constant to be zero and it is granted.
Satisfied, he sits back and wishes for a bowl of pudding. Poof, a bowl of pudding materializes out of nowhere, the hubble constant goes negative, and the universe colapses.
Don't feel so secure. Here at CMU a long time ago someone stole passwords like this:
When he "logged out" he didn't really log out but he put up a fake password prompt. The next person would log in, but it would say "password incorrect," store the password, log the original guy out, and show the real login prompt.
Don't think you're safe on a multiuser system either.
Take for example my paper copy of The Hitchiker's Guide to the Galaxy. I've read that thing probably a dozen times. A beautiful work of art. But, there is always that time when I want to find a quote for my website or to have a laugh with someone. That is when the text files are essential.
I know I'll be buying more books when I know I can search through them, because not every book I've read has been easily locatable scans on my favorite ftp sites:)
Is the fact that a Windows install gets slower over time from a bloated registry and so on. I know a lot of people with decent machines that are simply bogged down by software who don't know to reinstall and instead buy a new computer.
A sociologist, a psychologist, and an engineer were discussing the consequences and implications of a married man having a mistress. The sociologist's opinion was that it is absolutely and categorically unforgivable for a married man to forfeit the bond of matrimony, and engage in such lowly and lustful pursuits.
The psychologist's opinion was that although morally reprehensible, if a man MUST have a mistress to achieve his full potential as a human being, then -- well -- he may go ahead and choose to have a mistress, as long as he is considerate enough to keep this secret from his wife.
The engineer then interjected: "I also believe that, if necessary, a married man is entitled to a mistress. However, I do not see why the affair should be concealed from the wife. On the contrary, if the affair is out in the open, then on Friday evenings he may tell his wife that he is going to see his mistress, tell his mistress that he is going to be with his wife, then go to his office and get some work done!"
You can open up a lecture slide on say, power point during a class, write notes on it in a spiraling circular fashion, then later search through your spiral scribble AS IF IT WERE TEXT. You write "foo," search for "foo" and "foo" in your hand writing will be highlighted.
They did it during the presentation and it appeared to work very well.
When I take notes in class I use paper and a pen because I like the variety in handwriting to help me remember things. If it were searchable... I'd buy on of these and I've used Linux exclusively for 2 years.
I read this article a week or so ago on reuters, except the headline was that the British were developing it, and the the US was interested.
This article headlines the US then goes on about how the British were doing everything It then mentions in a single paragraph that the US has spent over $110 million on it but gives no details.
As others have said, I don't think filtering will eliminate the source. Sure, people on/. can filter their email, but the people who actually are ignorant enough to buy from spammers aren't likely to be the same kind of people who set up their own spam filters. They are most likely using their run of the mill aol/hotmail/ISP email addresses which have some filters in place, but anybody with a hotmail address knows, they are by no means effective.
He isn't fighting spam, he is filtering it. There is a difference. Filtering still costs in bandwidth. Fighting it would eliminate the source and free up the gigabytes of bandwidth lost for this marketing purpose.
Filtering is fine for now, but ultimately it must be fought and defeated.
If you think about it, the is a great business model (in some eyes). They send out emails to people who have crushes and it sends them to a website where they have to sign up for things to learn who it is. Since crushes are secret and be for jokes even, they can randonly send it to arbitrary people to get them to sign up for things even if there is no real crush because nobody knows there is no person on the other end. Bam, spam but with a seemingly legit premise. I get emails all the time but I'm a nerd so I know it isn't legit:)
Just reading other people's posts I see a problem: a lot of test were held in bars. I'd venture to say half of the people who would have gone aren't over 21!
I'd say a disproportionate number of people reading/. are college undergrads like myself, and I don't turn 21 until I'm a senior which means that I couldn't get into the Pittsburgh one even if I wanted to go.
Finally, it is summer, which means a lot of people are away from the big cities as classes don't start for another month.
Wait until school starts and all the nerds filter back from their parent's basement (aka, me:)
Or just attend one of the several nearby college's computer club meetings. It may as well be a/. meeting except it will be in a server room instead of a bar.
Spamming people also drives some away as potential customers. Perhaps not for nameless spammers that I would never purchase from, but when larger companies do things, they lose my business.
I've been thinking about this question as well. Here is what I currently believe:
There are two main reasons people code. One is money. The second one is the appreciation of the theory and algorithms behind it.
As a result, we have Microsoft which I see as full of people in it for the money. This leaves crappy code and security holes since as long as everybody gets their paycheck they do whatever it takes to keep them from getting fired (ie, Office Space the movie)
Those people really don't care about the code, and so won't spend their free time contributing free software to the community. If they do write something, it will be for win32 and they will charge money so they can make a few dollars. They figure everything else costs money so why should theirs be free?
On the other hand, we have people who like to code, and don't care so much about the money as much as the respect of their peers and for the beauty of the code. Therefore we have a lot of free stuff in linux. Sure, some of it also has win32 ports, but are there any free office suites and full fledged graphics packages soley for win32? The answer is no (I would imagine) because win32 has such a huge user base. With something like 90% of the desktop, somebody is bound to pay for your product, so why should anybody write a free application for win32?
Why would your mom want to recompile a kernel? As for installing RPMs, KDE makes that a 1 click procedure, you don't even have to download anything. With Konqueror, if you click a link the KDE rpm package manager installs it for you.
What my mom can't handle is downloading something , finding it, and installing it.
Linux's core might be hard to use, but KDE/Gnome isn't.
Slashdot Mirror
Obligatory SpaceBalls Reference:
... That's the stupidest combination I've ever heard in my life! That's the kind of thing an idiot would have on his luggage. .... 1,2,3,4,5. That's amazing I've got the same combination on my luggage.
DARK HELMET: So the combination is 1,2,3,4,5
PRESIDENT SKROOB:
This is probably a good place to mention badram, the linux kernel patch that lets you use slightly defective memory modules.
You can use memtest to generate a list of bad areas in ram, and the badram patch reserves those blocks of memory on boot such that nobody can ever use them, effectively giving you a working stick of ram, only a little bit smaller than it is marked for.
If you're like me, you have a couple of cheapo sticks from who knows where that don't exactly work, and this patch is perfect for reviving those sticks.
Other forms of disk scheduling are a little more simple. Assume that the disk is really slow, and lots of requests are coming in that are buffered somewhere. Obviously you want to handle requests that are close to where the disk head currently is since it is faster and you won't have your head going all over the place.
:)
FCFS (first come first serve) - easy stupid way. Take requests as they come. If you need front end front end, performance suffers because obviously you want to do front front end end.
SSTF (shortest seek time first) - do the request that is shortest to the head first. The problem with this is if you keep asking for stuff at the front of the disk and have a lone request for the end of the disk, the lone request could get ignored for a long time (starved) since the scheduler does the stuff at the front since seek times are much lower.
SCAN - the head starts at one end of the disk and goes to the end, servicing requests along the way, but never going back so that that lone request from the previous method does get serviced. When it gets to the end the head moves back toward the front, servicing requests along the way. It keeps going back and forth.
C-SCAN -Variant of SCAN where it doesn't go back and forth. It goes from front to back servicing requests then goes all the way back to the front before it starts servicing again. It gives more uniform times because if you're using SCAN and your request at the beginning is just missed by the head, you have to wait until it goes all the way to the other end and comes all the way back. In this method it goes to the end and then you're the next request to be serviced if you are at the beginning.
LOOK - The same as CSCAN and SCAN except it doesn't blindly go to the end of the disk; it stops and turns around when there aren't any more requests in the direction. Of course, if you show up right after the head changes direction, sucks to be you
A man finds a lamp and poof, out comes a genie who gives him 3 wishes.
The man's first wish is to live forever and it is granted.
Then he realizes that eventually the universe will end so he wishes for the hubble constant to be zero and it is granted.
Satisfied, he sits back and wishes for a bowl of pudding. Poof, a bowl of pudding materializes out of nowhere, the hubble constant goes negative, and the universe colapses.
Don't feel so secure. Here at CMU a long time ago someone stole passwords like this:
When he "logged out" he didn't really log out but he put up a fake password prompt. The next person would log in, but it would say "password incorrect," store the password, log the original guy out, and show the real login prompt.
Don't think you're safe on a multiuser system either.
Take for example my paper copy of The Hitchiker's Guide to the Galaxy. I've read that thing probably a dozen times. A beautiful work of art. But, there is always that time when I want to find a quote for my website or to have a laugh with someone. That is when the text files are essential.
:)
I know I'll be buying more books when I know I can search through them, because not every book I've read has been easily locatable scans on my favorite ftp sites
I read this article elsewhere last night. It was linked to from google news...
m l. asp
Microsoft commissioned the survey!
http://www.theregister.co.uk/content/4/28408.ht
http://www.eweek.com/article2/0,3959,741730,00
My question is, why doesn't this particular article mention that important fact?
Is the fact that a Windows install gets slower over time from a bloated registry and so on. I know a lot of people with decent machines that are simply bogged down by software who don't know to reinstall and instead buy a new computer.
A sociologist, a psychologist, and an engineer were discussing the
consequences and implications of a married man having a mistress. The
sociologist's opinion was that it is absolutely and categorically
unforgivable for a married man to forfeit the bond of matrimony, and
engage in such lowly and lustful pursuits.
The psychologist's opinion was that although morally reprehensible,
if a man MUST have a mistress to achieve his full potential as a human
being, then -- well -- he may go ahead and choose to have a mistress,
as long as he is considerate enough to keep this secret from his wife.
The engineer then interjected: "I also believe that, if necessary,
a married man is entitled to a mistress. However, I do not see why
the affair should be concealed from the wife. On the contrary, if the
affair is out in the open, then on Friday evenings he may tell his wife
that he is going to see his mistress, tell his mistress that he is
going
to be with his wife, then go to his office and get some work done!"
Just pick up one of these.
:)
Sure it isn't 3-D but just close your eyes as if s/he were really hideous
Here is what floored everybody:
You can open up a lecture slide on say, power point during a class, write notes on it in a spiraling circular fashion, then later search through your spiral scribble AS IF IT WERE TEXT. You write "foo," search for "foo" and "foo" in your hand writing will be highlighted.
They did it during the presentation and it appeared to work very well.
When I take notes in class I use paper and a pen because I like the variety in handwriting to help me remember things. If it were searchable... I'd buy on of these and I've used Linux exclusively for 2 years.
How can you miss the YS tech TMD fans?
They removed the rotor from the center and put the magnets on the outside so more air blows where the CPU die is and it also is quieter.
Woo! Take that, MIT! In your face!! :-)
Wow, that's a lot of megs!
What a message it would send if IBM or similar pro-open source company immediately offered Bruce a job.
Note it has 880 miles since he built the add-on. It actually has 100k miles on it already.
I read this article a week or so ago on reuters, except the headline was that the British were developing it, and the the US was interested.
This article headlines the US then goes on about how the British were doing everything It then mentions in a single paragraph that the US has spent over $110 million on it but gives no details.
Interesting.
As others have said, I don't think filtering will eliminate the source. Sure, people on /. can filter their email, but the people who actually are ignorant enough to buy from spammers aren't likely to be the same kind of people who set up their own spam filters. They are most likely using their run of the mill aol/hotmail/ISP email addresses which have some filters in place, but anybody with a hotmail address knows, they are by no means effective.
He isn't fighting spam, he is filtering it. There is a difference. Filtering still costs in bandwidth. Fighting it would eliminate the source and free up the gigabytes of bandwidth lost for this marketing purpose.
Filtering is fine for now, but ultimately it must be fought and defeated.
If you think about it, the is a great business model (in some eyes). They send out emails to people who have crushes and it sends them to a website where they have to sign up for things to learn who it is. Since crushes are secret and be for jokes even, they can randonly send it to arbitrary people to get them to sign up for things even if there is no real crush because nobody knows there is no person on the other end. Bam, spam but with a seemingly legit premise. I get emails all the time but I'm a nerd so I know it isn't legit :)
Just reading other people's posts I see a problem: a lot of test were held in bars. I'd venture to say half of the people who would have gone aren't over 21!
/. are college undergrads like myself, and I don't turn 21 until I'm a senior which means that I couldn't get into the Pittsburgh one even if I wanted to go.
I'd say a disproportionate number of people reading
Finally, it is summer, which means a lot of people are away from the big cities as classes don't start for another month.
Maybe in September there will be more attendance
Wait until school starts and all the nerds filter back from their parent's basement (aka, me :)
/. meeting except it will be in a server room instead of a bar.
Or just attend one of the several nearby college's computer club meetings. It may as well be a
Spamming people also drives some away as potential customers. Perhaps not for nameless spammers that I would never purchase from, but when larger companies do things, they lose my business.
I've been thinking about this question as well. Here is what I currently believe:
There are two main reasons people code. One is money. The second one is the appreciation of the theory and algorithms behind it.
As a result, we have Microsoft which I see as full of people in it for the money. This leaves crappy code and security holes since as long as everybody gets their paycheck they do whatever it takes to keep them from getting fired (ie, Office Space the movie)
Those people really don't care about the code, and so won't spend their free time contributing free software to the community. If they do write something, it will be for win32 and they will charge money so they can make a few dollars. They figure everything else costs money so why should theirs be free?
On the other hand, we have people who like to code, and don't care so much about the money as much as the respect of their peers and for the beauty of the code. Therefore we have a lot of free stuff in linux. Sure, some of it also has win32 ports, but are there any free office suites and full fledged graphics packages soley for win32? The answer is no (I would imagine) because win32 has such a huge user base. With something like 90% of the desktop, somebody is bound to pay for your product, so why should anybody write a free application for win32?
Why would your mom want to recompile a kernel? As for installing RPMs, KDE makes that a 1 click procedure, you don't even have to download anything. With Konqueror, if you click a link the KDE rpm package manager installs it for you.
What my mom can't handle is downloading something , finding it, and installing it.
Linux's core might be hard to use, but KDE/Gnome isn't.
I'm not sure how parent's FUD got modded up.