Computing desk | ||
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Welcome to the Wikipedia Computing Reference Desk Archives |
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The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
Let's say I take a copy of a CD, put it into a computer, and rip it into MP3s using iTunes.
I then take the CD out, put it into an identical or similar computer, and rip it into MP3s using iTunes, with the same settings.
Will the subsequent MP3s be identical? If I made md5 hashes of them, would they match?
I know that obviously if you change the settings, and probably even use different rippers, you would definitely get different results. But what about same rippers, same settings? (I guess you don't even need two computers to test this — you could just rip the same song twice and compare.) Is there some kind of random influence here or would it be identical? -- Mr.98 ( talk) 00:27, 31 August 2010 (UTC)
I am having trouble in opening image in new tab in Intenet explorer by using middle mouse. In mozilla, if I click on image by middle mouse then it automatically opens in new tab under the same window. But in IE 8 it opens in same tab. I want image to open in new tab by using middle mouse. Is there any way to do it?-- 180.234.22.214 ( talk) 00:30, 31 August 2010 (UTC)
I just got out of a meeting where the person leading it said the word 'motherboard' and then quickly admonished themselves and muttered something about not using that word. I asked around the office here and the opinion from my co-workers is that it's probably some political correctness thing. I've never heard any objections to motherboard before, so is this a new wave of overzealous PC or what?
And yes, I thought about putting this on the Lan. desk but figured there would be more input from IT industry people here. Dismas| (talk) 00:31, 31 August 2010 (UTC)
I've just begun grad school, and one of the non-scholastic requirements of this program is that I subscribe to a school-wide listserv for announcements. Two of today's emails from professors to us students have been marked as phishing upon arriving in my Windows Mail inbox, for a reason that I can't understand. Is there any way to tell Windows Mail to whitelist all email coming in from a listserv? I've found instructions on turning off the filter and on whitelisting specific email addresses, but I want the filter to keep working, and as many professors and department staff post to this listserv, it would be a waste of time to try to whitelist all of their addresses. Nyttend ( talk) 01:30, 31 August 2010 (UTC)
OK, so I'm trying to mod an HUD texture in Mafia II, and whenever I try to save it as DDS, the alpha channel gets borked as 1-bit instead of an explicit one, even if I try to use the DXT5 option. I'm using Photoshop CS3, along with Nvidia's latest DDS tools. Blake Gripling ( talk) 02:17, 31 August 2010 (UTC)
After upgrading my office computer to Acrobat Standard v9 a while back, I now seem to be accumulating a shitload of files in C:\PF\Adobe\Acrobat\Update. Standard name is of the form X_modulename_nnn.rtp, where X is mostly the letter H, but some A's and M's too, and nnn corresponds to the release number, 910 for 9.1, 934 for 9.3.4, etc.
By this point, I have up to five copies of each file (with increasing release numbers), taking up a couple hundred megabytes.
Thanks, DaHorsesMouth ( talk) 02:31, 31 August 2010 (UTC)
I keep getting error message on my xbox. It says w-0000-0000,x-8000-0013,y-0000-0000,z-0000-0000,ID-FFFF-FFFF. It is on my wireless system and I have tryed two devices. I get on for less than a minute then it go to blimking. To me this all started when they came and made it wpa2p from wep. —Preceding unsigned comment added by 97.113.213.249 ( talk) 04:01, 31 August 2010 (UTC)
Hi, I have an email account with a big internet company. I support a particular candidate for federal office. I subscribe to the candidate's email newsletter, which I just realized is being put into the spam file. I'll keep an eye out for it, so the problem is solved for me, but is it possible or likely that major internet companies are intentionally favoring some candidates by marking newletters as spam? If so, I want to know. Thanks, Rich ( talk) 10:01, 31 August 2010 (UTC)
Hi Everyone,
I want to know why CPU cores cost twenty times as much as GPU cores. What is it that CPU cores can do that GPU cores can't, which makes soo much more expensive? Please refer to the table below for more information.
Product Name | Number of Cores | Unit Price | Effective Cost/Core |
---|---|---|---|
Intel Xeon Six-Core X5680 3.33GHz/12MB Processor | 6 | $2,400 | $400.00 |
nVidia Quadro FX5800 Graphics Card | 240 | $5,475 | $22.82 |
nVidia Tesla M2070 GPU Computing Module | 448 | $8,000 | $17.86 |
Thanks to everyone, reader and respondent alike. Vickreman.Chettiar 12:34, 31 August 2010 (UTC)
(ec) "What is it that CPU cores can do that GPU cores can't..." - well, to be blunt, a GPU "core" isn't a "core." It's only an ALU. So when you see a "240-core" count, that's number of EX stages, not number of true "cores." (Well, "core" is weakly defined in computer-architecture, and varies for each type of architecture). Each GPGPU core lacks its own Instruction Fetch, an Instruction Decode, and a proper memory writeback unit. A GPGPU is therefore typically programmed to operate in SIMD mode - so it shares one (or a few sets) of this hardware over the entire chip. In lieu of a per-element decoder, Teslas use a sort of "bitmask" to turn on operations chip-wide or per- thread block. This severely limits what you can program 240 Tesla GPGPU cores to do:: they must all operate in lockstep, because they share the computer hardware that determines what instructions to run. In other words, you can run six different programs on a 6-core Xeon; but you can only run one program on a 240-core Tesla. (In this loose usage, "program" means " unconditional set of instructions"). You basically have 240 copies of the same program. You can read about the basics of instruction pipelines - like the classic RISC pipeline - to become familiar with how this works. Modern CPUs like Intel use a extraordinarily sophisticated instruction pipeline - while a GPGPU like NVIDIA's Tesla series use the much more restrictive Parallel Thread Execution pipeline, defined by the PTX instruction set architecture. Nimur ( talk) 17:54, 31 August 2010 (UTC)
Does google mail delete accounts which have been inactive for a long time? I know Yahoo! Mail deletes stored messages if you don't log in every 6 months, but the account remains usable. Does the same apply to google? 82.44.55.25 ( talk) 15:30, 31 August 2010 (UTC)
Is there any good way to predict the features / sizes / cost of solid state drives in the near future? Samsung and Toshiba have been making noises about toggle-mode NAND [5], but haven't shipped any actual products yet (AFAIK). I am wondering if this new technology is likely to have a significant impact on SSD sizes / cost during the next 4 months or so, or whether it is more likely to make only a small difference compared to the current technology. Dragons flight ( talk) 19:29, 31 August 2010 (UTC)
...without owning a kindle? I really don't know much about the kindle, but I'd rather download the kindle edition of Star Maker for five dollars instead of buying it for thirty. Would I be able to still read the book on my Macbook? Thanks : ] ? EVAUNIT 神になった人間 21:18, 31 August 2010 (UTC)
Computing desk | ||
---|---|---|
< August 30 | << Jul | August | Sep >> | September 1 > |
Welcome to the Wikipedia Computing Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
Let's say I take a copy of a CD, put it into a computer, and rip it into MP3s using iTunes.
I then take the CD out, put it into an identical or similar computer, and rip it into MP3s using iTunes, with the same settings.
Will the subsequent MP3s be identical? If I made md5 hashes of them, would they match?
I know that obviously if you change the settings, and probably even use different rippers, you would definitely get different results. But what about same rippers, same settings? (I guess you don't even need two computers to test this — you could just rip the same song twice and compare.) Is there some kind of random influence here or would it be identical? -- Mr.98 ( talk) 00:27, 31 August 2010 (UTC)
I am having trouble in opening image in new tab in Intenet explorer by using middle mouse. In mozilla, if I click on image by middle mouse then it automatically opens in new tab under the same window. But in IE 8 it opens in same tab. I want image to open in new tab by using middle mouse. Is there any way to do it?-- 180.234.22.214 ( talk) 00:30, 31 August 2010 (UTC)
I just got out of a meeting where the person leading it said the word 'motherboard' and then quickly admonished themselves and muttered something about not using that word. I asked around the office here and the opinion from my co-workers is that it's probably some political correctness thing. I've never heard any objections to motherboard before, so is this a new wave of overzealous PC or what?
And yes, I thought about putting this on the Lan. desk but figured there would be more input from IT industry people here. Dismas| (talk) 00:31, 31 August 2010 (UTC)
I've just begun grad school, and one of the non-scholastic requirements of this program is that I subscribe to a school-wide listserv for announcements. Two of today's emails from professors to us students have been marked as phishing upon arriving in my Windows Mail inbox, for a reason that I can't understand. Is there any way to tell Windows Mail to whitelist all email coming in from a listserv? I've found instructions on turning off the filter and on whitelisting specific email addresses, but I want the filter to keep working, and as many professors and department staff post to this listserv, it would be a waste of time to try to whitelist all of their addresses. Nyttend ( talk) 01:30, 31 August 2010 (UTC)
OK, so I'm trying to mod an HUD texture in Mafia II, and whenever I try to save it as DDS, the alpha channel gets borked as 1-bit instead of an explicit one, even if I try to use the DXT5 option. I'm using Photoshop CS3, along with Nvidia's latest DDS tools. Blake Gripling ( talk) 02:17, 31 August 2010 (UTC)
After upgrading my office computer to Acrobat Standard v9 a while back, I now seem to be accumulating a shitload of files in C:\PF\Adobe\Acrobat\Update. Standard name is of the form X_modulename_nnn.rtp, where X is mostly the letter H, but some A's and M's too, and nnn corresponds to the release number, 910 for 9.1, 934 for 9.3.4, etc.
By this point, I have up to five copies of each file (with increasing release numbers), taking up a couple hundred megabytes.
Thanks, DaHorsesMouth ( talk) 02:31, 31 August 2010 (UTC)
I keep getting error message on my xbox. It says w-0000-0000,x-8000-0013,y-0000-0000,z-0000-0000,ID-FFFF-FFFF. It is on my wireless system and I have tryed two devices. I get on for less than a minute then it go to blimking. To me this all started when they came and made it wpa2p from wep. —Preceding unsigned comment added by 97.113.213.249 ( talk) 04:01, 31 August 2010 (UTC)
Hi, I have an email account with a big internet company. I support a particular candidate for federal office. I subscribe to the candidate's email newsletter, which I just realized is being put into the spam file. I'll keep an eye out for it, so the problem is solved for me, but is it possible or likely that major internet companies are intentionally favoring some candidates by marking newletters as spam? If so, I want to know. Thanks, Rich ( talk) 10:01, 31 August 2010 (UTC)
Hi Everyone,
I want to know why CPU cores cost twenty times as much as GPU cores. What is it that CPU cores can do that GPU cores can't, which makes soo much more expensive? Please refer to the table below for more information.
Product Name | Number of Cores | Unit Price | Effective Cost/Core |
---|---|---|---|
Intel Xeon Six-Core X5680 3.33GHz/12MB Processor | 6 | $2,400 | $400.00 |
nVidia Quadro FX5800 Graphics Card | 240 | $5,475 | $22.82 |
nVidia Tesla M2070 GPU Computing Module | 448 | $8,000 | $17.86 |
Thanks to everyone, reader and respondent alike. Vickreman.Chettiar 12:34, 31 August 2010 (UTC)
(ec) "What is it that CPU cores can do that GPU cores can't..." - well, to be blunt, a GPU "core" isn't a "core." It's only an ALU. So when you see a "240-core" count, that's number of EX stages, not number of true "cores." (Well, "core" is weakly defined in computer-architecture, and varies for each type of architecture). Each GPGPU core lacks its own Instruction Fetch, an Instruction Decode, and a proper memory writeback unit. A GPGPU is therefore typically programmed to operate in SIMD mode - so it shares one (or a few sets) of this hardware over the entire chip. In lieu of a per-element decoder, Teslas use a sort of "bitmask" to turn on operations chip-wide or per- thread block. This severely limits what you can program 240 Tesla GPGPU cores to do:: they must all operate in lockstep, because they share the computer hardware that determines what instructions to run. In other words, you can run six different programs on a 6-core Xeon; but you can only run one program on a 240-core Tesla. (In this loose usage, "program" means " unconditional set of instructions"). You basically have 240 copies of the same program. You can read about the basics of instruction pipelines - like the classic RISC pipeline - to become familiar with how this works. Modern CPUs like Intel use a extraordinarily sophisticated instruction pipeline - while a GPGPU like NVIDIA's Tesla series use the much more restrictive Parallel Thread Execution pipeline, defined by the PTX instruction set architecture. Nimur ( talk) 17:54, 31 August 2010 (UTC)
Does google mail delete accounts which have been inactive for a long time? I know Yahoo! Mail deletes stored messages if you don't log in every 6 months, but the account remains usable. Does the same apply to google? 82.44.55.25 ( talk) 15:30, 31 August 2010 (UTC)
Is there any good way to predict the features / sizes / cost of solid state drives in the near future? Samsung and Toshiba have been making noises about toggle-mode NAND [5], but haven't shipped any actual products yet (AFAIK). I am wondering if this new technology is likely to have a significant impact on SSD sizes / cost during the next 4 months or so, or whether it is more likely to make only a small difference compared to the current technology. Dragons flight ( talk) 19:29, 31 August 2010 (UTC)
...without owning a kindle? I really don't know much about the kindle, but I'd rather download the kindle edition of Star Maker for five dollars instead of buying it for thirty. Would I be able to still read the book on my Macbook? Thanks : ] ? EVAUNIT 神になった人間 21:18, 31 August 2010 (UTC)