Yeah even though I can't justify my bringing my dual-monitor system to school, I just have to have a Linux box. So I think headless with the powerbook will do. It did make me sad when I had to move a monitor off my desk (at home) to sit my powerbook somewhere. My beloved Linux box is being replaced *cry*
Inverse of the MTBF? By your formula ("(1/N^2)*T"), the more disks you add, the less likely the array is to fail. For 1 disk, it's T, for two, it's T/4. Where did you come up with the inverse!?
Try T^N. One disk is T, two is T^2, three is (*gasp*) T^3. I'm not going to prove this for you, but it is right. (Now somebody will reply and claim I'm wrong, and I'll have to post a proof.)
This is just the kind of stuff that I like to see on slashdot... a new idea for PSUs, okay that's cool to read about! Considering I don't normally read ViperLair, this is interesting and new to me!
BTW, I think the reason the 3.3V line "sags" during their test (it's still in spec; 3.16V is within 5% of 3.3 [4.24% for those who care]) is because there's no load on it. What uses 3.3V these days?
And if you're a student, Apple is even better! This 15" Powerbook was under $2000, and it's a damn nice computer. Of course eclipse is a bit snappier on my Linux box (Athlon 2500+), but oh well... I can't put my Linux box in my backpack...
Hyperthreading was a good way for intel to get itself out of a jam. The p4 had a REALLY long pipeline, and in order to keep it filled most of the time, they needed two threads feeding it with instructions.
Basically there are multiple units (say integer units) that can run concurrently. If you can get two integer operations to compute at the same time, then you just increased performance. Hyperthreading was a way for the OS to help the CPU keep it's execution units full.
And yeah, "low-end" Opterons are cheap these days. I have my eye on a dual-opteron setup...
I forgot to mention the reason (that I think) for the frying... he bought a $400 processor, $200 mobo (!!), 1G of PC3200 RAM, etc, etc. And a $20 power supply. I recommended that he get an Antec (or at least one that keeps its voltages in spec!) but he refused. Idiots. People are idiots.
I'm teaching the class, why the fuck would I know what I'm talking about? His friends at 13370v3rc10c1312.com thought the 600W $20 was just fine.... 600W with voltages +/- 10% MAYBE...
Hell maybe he was just unlucky (and he static shocked it, the parts were bad, or the PSU decided to run the processor at 120VAC...)
Some moron in a class I taught (on building computers) had a P4EE. Of course, he was the computer expert, so he and his brilliant friends ignored my instructions and fried his entire computer (let's build it with it on!!!)
Hmm because of that class I ALMOST had an extra 1700+... but some girl picked the thing up (and it was winter... in a carpeted room) and static shocked the thing ("ohh shiny processor! let's touch it!")
Yup, they're suckers because they're sitting on their couch with 54Mbps of theoretical bandwidth, while you're NOT a sucker because you're sitting on your couch with 54Mbps of theoretical bandwidth.
What's the difference? Sure, you can't go buy a shiny new 802.11a setup, but it works if you have it. It's better than my crappy 802.11b here:)
(Although I have the cheapest AP imaginable [A "NetworkEverywhere" unit that I bought very cheaply a few years ago], I have AMAZING range. It works in every square inch of my house, and even the park across the street (although trees kill reception REALLY fast).
Now I just need to get it to work in the park on the other side of my house... 'cause they have a nice tree-less area to sit down:)
And the danger is that it burns your eyes out. You'll notice if your arm is burning off, but your retinas don't tend to notice that they're being burned. No pain receptors there... So please be careful, at least keep your eyes out of the microwave beam.
I think that the flight path will change if you start pointing this high energy RF gun at the planes overhead. At least they'll fall out of the sky or something.
I program stack computers. And I almost always write out the program on paper first. Actually I use a four-step procedure. First I write out the state of the stack after every instruction. For example, say I want to calculate 4A + B^2... here's what I write
X X X X X X X B X X X X B A B 4A 4A X A 4 4A B B^2 4A+B^2 (time--->)
Then I figure out what instruction I used to get there:
(start), 4, MUL, SWAP, SQR, ADD
Then I try it out on my own data, by hand. (Let's use 1 for A and 4 for B, the result should be 20)
X X X X X X 4 X X X 4 1 4 4 X 1 4 4 16 20
Okay, it worked.
THEN I type it into the computer, and run some more test cases. So you see, what you learned in school may actually be useful!
Well you build up an immunity after a while. I'm not going to go to goatse during my normal browsing session, but if it mysteriously showed up i wouldn't freak out. I could look without throwing up long enough to close the window, anyway.
As a side note, what's with mr. goatse's ring... take off your rings when you're expanding your anus, please:-)
His point is that 802.11abg was pushed out too quickly. Had they taken the time, then IPSec would have been the default.
But it's not. So WiFi is open to this kind of shit. What's easier, plugging in an AP? Or setting up a router, plugging in the wifi interface, plugging in ethernet, routing the packets, getting the ipsec stuff working, getting all the clients ipsec clients, etc, etc, etc?
I like your live at a lower standard and invest idea a lot, but I couldn't get around your choice of words.
Pick a wife? Where do you get to _pick_? And what if you love someone that doesn't make a great income? Will you just dump her and go for some rich girl?
That's really sad if that's your outlook on life. Good luck...
And living off $40,000 isn't going to get you what you want, I'll bet.
I agree with you. I'm happy that I chose not to go to a place like MIT for two reasons:
The first is obviously cost. For no money on my part (admittedly my parents paid into some plan called College Illinois that will cover your tuition for 4 years at any in-state public university, but I do have scholarships for things like textbooks). And it's the same damn education. The MIT people don't know some secret about Taylor series that the UIC people don't. The first three years of undergraduate are most definitely the same everywhere (well, at any decent research university anyway). Maybe the fourth year the MIT people will have something new and interesting for you to work on that the UIC people don't (although there's plenty here too), but maybe not. For undergraduate work, the extra $200000 a year isn't worth it:)
And secondly, at MIT you probably don't mean jack shit to anyone. Everyone there is really bright; why should Professor Pringles help you with your research? If you're pretty smart, you'll stand out more at a place like UIC (not to say that I'm particularly smart or that there aren't a lot of smart people at UIC), and get a chance to excel.
So in the end, you get at the very least the same education at UIC that you would at MIT, and perhaps get even more. For a LOT less money.
Oh, and hell UIUC is one of the best engineering schools in the country, so if you're in state it's a REALLY good idea to look into it! (Unless you don't like living in the middle of a cornfield, like me...)
> I look back during the time my parents wanted me to go to school and realize i would have been ROYALLY fucked with NOT A CHANCE IN HELL of getting a job had I gone for a CS degree.
I know plenty of employed CS people. All the CS professors, in fact, have CS degrees AND a paycheck. CS is not a dead field!
Slashdot Mirror
Yeah even though I can't justify my bringing my dual-monitor system to school, I just have to have a Linux box. So I think headless with the powerbook will do. It did make me sad when I had to move a monitor off my desk (at home) to sit my powerbook somewhere. My beloved Linux box is being replaced *cry*
Wow I'm an idiot. I was thinking probability of failure... not MTBF. I am an idiot. Please kill me.
Maybe I AM math-impared!!!!!!
*drinks coffee*
2 minute limit LA LA LA LA LA
Inverse of the MTBF? By your formula ("(1/N^2)*T"), the more disks you add, the less likely the array is to fail. For 1 disk, it's T, for two, it's T/4. Where did you come up with the inverse!?
:)
Try T^N. One disk is T, two is T^2, three is (*gasp*) T^3. I'm not going to prove this for you, but it is right. (Now somebody will reply and claim I'm wrong, and I'll have to post a proof.)
BTW, maybe we're not the math-impared ones
This is just the kind of stuff that I like to see on slashdot... a new idea for PSUs, okay that's cool to read about! Considering I don't normally read ViperLair, this is interesting and new to me!
BTW, I think the reason the 3.3V line "sags" during their test (it's still in spec; 3.16V is within 5% of 3.3 [4.24% for those who care]) is because there's no load on it. What uses 3.3V these days?
Hey, my Linux box is a high end gaming system. I get _at least_ 85 fps at 1230x940 while playing... emacs!
Actually I get really high framerates in ut2004, considering I have a MX440 and my 2500+ is "only" overclocked to 2255Mhz...
And if you're a student, Apple is even better! This 15" Powerbook was under $2000, and it's a damn nice computer. Of course eclipse is a bit snappier on my Linux box (Athlon 2500+), but oh well... I can't put my Linux box in my backpack...
Okay, thanks. I always do typedef struct {} name_t; so I guess I'm right. Now I know why, though :)
Hyperthreading was a good way for intel to get itself out of a jam. The p4 had a REALLY long pipeline, and in order to keep it filled most of the time, they needed two threads feeding it with instructions.
Basically there are multiple units (say integer units) that can run concurrently. If you can get two integer operations to compute at the same time, then you just increased performance. Hyperthreading was a way for the OS to help the CPU keep it's execution units full.
And yeah, "low-end" Opterons are cheap these days. I have my eye on a dual-opteron setup...
I forgot to mention the reason (that I think) for the frying... he bought a $400 processor, $200 mobo (!!), 1G of PC3200 RAM, etc, etc. And a $20 power supply. I recommended that he get an Antec (or at least one that keeps its voltages in spec!) but he refused. Idiots. People are idiots.
I'm teaching the class, why the fuck would I know what I'm talking about? His friends at 13370v3rc10c1312.com thought the 600W $20 was just fine.... 600W with voltages +/- 10% MAYBE...
Hell maybe he was just unlucky (and he static shocked it, the parts were bad, or the PSU decided to run the processor at 120VAC...)
Some moron in a class I taught (on building computers) had a P4EE. Of course, he was the computer expert, so he and his brilliant friends ignored my instructions and fried his entire computer (let's build it with it on!!!)
Hmm because of that class I ALMOST had an extra 1700+... but some girl picked the thing up (and it was winter... in a carpeted room) and static shocked the thing ("ohh shiny processor! let's touch it!")
*sigh*
Yup, they're suckers because they're sitting on their couch with 54Mbps of theoretical bandwidth, while you're NOT a sucker because you're sitting on your couch with 54Mbps of theoretical bandwidth.
:)
:)
What's the difference? Sure, you can't go buy a shiny new 802.11a setup, but it works if you have it. It's better than my crappy 802.11b here
(Although I have the cheapest AP imaginable [A "NetworkEverywhere" unit that I bought very cheaply a few years ago], I have AMAZING range. It works in every square inch of my house, and even the park across the street (although trees kill reception REALLY fast).
Now I just need to get it to work in the park on the other side of my house... 'cause they have a nice tree-less area to sit down
Just use wget to download stuff, then you can continue when your wifi dies...
wget http://example.com/file.iso
*net connection dies*
wget --continue http://example.com/file.iso
3 words (that will increase the range of your 2.4GHz phone): pringles can waveguide
^_^
And the danger is that it burns your eyes out. You'll notice if your arm is burning off, but your retinas don't tend to notice that they're being burned. No pain receptors there... So please be careful, at least keep your eyes out of the microwave beam.
I think that the flight path will change if you start pointing this high energy RF gun at the planes overhead. At least they'll fall out of the sky or something.
Has anyone tested this? Reply if you have!!
My KT400A was a POS. Before our good friend Heidi Kim static-shocked it. Now it's much better. As a fire-starter....
What you really need is a pringles can. Then you can be multi-homed :)
Yup, and C-x 3 M-x follow-mode make it easy to use that space efficiently. Thank you, RMS, for emacs :)
I program stack computers. And I almost always write out the program on paper first. Actually I use a four-step procedure. First I write out the state of the stack after every instruction. For example, say I want to calculate 4A + B^2 ... here's what I write
X X X X X X
X B X X X X
B A B 4A 4A X
A 4 4A B B^2 4A+B^2
(time--->)
Then I figure out what instruction I used to get there:
(start), 4, MUL, SWAP, SQR, ADD
Then I try it out on my own data, by hand. (Let's use 1 for A and 4 for B, the result should be 20)
X X X X X
X 4 X X X
4 1 4 4 X
1 4 4 16 20
Okay, it worked.
THEN I type it into the computer, and run some more test cases. So you see, what you learned in school may actually be useful!
Come to think of it, what's the convention for appending _t. I subconsciously _t all my structs, but is this "correct"?
Well you build up an immunity after a while. I'm not going to go to goatse during my normal browsing session, but if it mysteriously showed up i wouldn't freak out. I could look without throwing up long enough to close the window, anyway.
:-)
As a side note, what's with mr. goatse's ring... take off your rings when you're expanding your anus, please
His point is that 802.11abg was pushed out too quickly. Had they taken the time, then IPSec would have been the default.
But it's not. So WiFi is open to this kind of shit. What's easier, plugging in an AP? Or setting up a router, plugging in the wifi interface, plugging in ethernet, routing the packets, getting the ipsec stuff working, getting all the clients ipsec clients, etc, etc, etc?
That's the point.
I like your live at a lower standard and invest idea a lot, but I couldn't get around your choice of words.
Pick a wife? Where do you get to _pick_? And what if you love someone that doesn't make a great income? Will you just dump her and go for some rich girl?
That's really sad if that's your outlook on life. Good luck...
And living off $40,000 isn't going to get you what you want, I'll bet.
I agree with you. I'm happy that I chose not to go to a place like MIT for two reasons:
:)
The first is obviously cost. For no money on my part (admittedly my parents paid into some plan called College Illinois that will cover your tuition for 4 years at any in-state public university, but I do have scholarships for things like textbooks). And it's the same damn education. The MIT people don't know some secret about Taylor series that the UIC people don't. The first three years of undergraduate are most definitely the same everywhere (well, at any decent research university anyway). Maybe the fourth year the MIT people will have something new and interesting for you to work on that the UIC people don't (although there's plenty here too), but maybe not. For undergraduate work, the extra $200000 a year isn't worth it
And secondly, at MIT you probably don't mean jack shit to anyone. Everyone there is really bright; why should Professor Pringles help you with your research? If you're pretty smart, you'll stand out more at a place like UIC (not to say that I'm particularly smart or that there aren't a lot of smart people at UIC), and get a chance to excel.
So in the end, you get at the very least the same education at UIC that you would at MIT, and perhaps get even more. For a LOT less money.
Oh, and hell UIUC is one of the best engineering schools in the country, so if you're in state it's a REALLY good idea to look into it! (Unless you don't like living in the middle of a cornfield, like me...)
> I look back during the time my parents wanted me to go to school and realize i would have been ROYALLY fucked with NOT A CHANCE IN HELL of getting a job had I gone for a CS degree.
:-)
I know plenty of employed CS people. All the CS professors, in fact, have CS degrees AND a paycheck. CS is not a dead field!
And anyway, at least you have a girlfriend