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Why does MySQL make columns specified as "Boolean" tinyint(1)s when bit(1) is available? Is there any way to have a group of Boolean columns stored internally as a bit field rather than giving each one its own byte? Neon Merlin 04:20, 2 July 2009 (UTC)
I get a 400 bad request while attempting to access YouTube with Google Chrome. Internet Explorer works fine for the site. Has anyone else noticed this? -- Blue387 ( talk) 05:56, 2 July 2009 (UTC)
Hi, whenever I open a new tab in Internet Explorer 8, I get a page that says
"The webpage cannot be displayed
Most likely cause:
•Some content or files on this webpage require a program that you don't have installed.
What you can try: Search online for a program you can use to view this web content. Retype the address. Go back to the previous page. "
and instead if "about:Tabs" being in the address bar, it says: "tbr:res?id=tabs&rep=1"
I'm running Windows XP SP3.
How can I fix this?
Thanks 144.138.21.100 ( talk) 06:32, 2 July 2009 (UTC)
Check "do not show this tab welcome message again" also, in tools/internet options you can set homepages for multiple tabs UNDER your initial homepage. If you do not do this, it will give you a generic welcome to tabs message Ivtv ( talk) 23:09, 8 July 2009 (UTC)
Hi friends, can u please describe for me the various methods in which intrnet connections are made possible? (2) what is network Topology? Bye. Kvees. —Preceding unsigned comment added by 59.178.188.221 ( talk) 08:00, 2 July 2009 (UTC)
I have a number of pen drives which I use to transfer data from one computer to another. Typical use would be to fill one up for a week with data from one computer, then move it to the other computer, copy all the data to that computer, then delete everything on the pen drive. So, I figure that's one read/write cycle per week, so it should last for years at that low usage rate. However, they don't last for years, but only months.
At first I thought I just had a defective drive, but now it's happened again. So, why might this be happening ? One theory I have is that while the data area only gets one read/write cycle per week, the index area is being updated every time I write a new sector. Since these are 32 Gb pen drives, that would mean there are some 64 million sectors at 512 bytes per sector. So, if there's an index that keeps track of the "highest occupied sector address" (or "lowest unoccupied sector address"), this might update 64 million times a week. In that case I could certainly understand why they would fail after a few months.
So, is this how they work ? If so, this seems to be a major flaw in their design. Is there any way to prevent them from doing this (say by having them only update that index after the copy operation is completed, instead of when each sector is written). Are there some brands that don't do this ? Are there some brands that include a small portion of more stable memory for this type of index space ? Any other solutions would be welcomed (I'm considering using a portable hard drive if I can't get the pen drives to last longer). StuRat ( talk) 12:19, 2 July 2009 (UTC)
In case it will help, let me describe some of the errors I get. On one flash drive I can write to about half of it, then it says "Device is write protected" and won't write any further. On another it says "File not found" when I try to write to it or read from it at all. I assumed these errors were the typical nonsense errors you get and that the actual problem is bad sectors on the flash drive. But how could I actually confirm that this is the real problem ? StuRat ( talk) 23:49, 2 July 2009 (UTC)
OK, "chkdsk" completed on the "file not found" flash drive, after a very long time (good flash drives are usually very quick). No errors were found except that it said "Cannot write boot sector". I take that to mean that the boot sector is bad. What would cause the boot sector to fail before the rest of the flash drive ? Is there any way to designate a new sector to be used as the boot sector ? StuRat ( talk) 01:20, 3 July 2009 (UTC)
We use only the highest quality components from the leading manufacturers to give you many years of worry free use
As I described in the section above, my flash drives die at an unacceptable rate. So, how can I make them last longer ? Should I use something other than the FAT32 file system ? (Remember that I need to access them in Windows XP and would also prefer to be able to access them in Linux.) Could heat cause them to wear out prematurely ? Would pointing a fan at them while in use help ? StuRat ( talk) 19:52, 3 July 2009 (UTC)
microwave technology? Sfan00 IMG ( talk) 16:52, 8 July 2009 (UTC)
Is there a "standard" method for handling the following problem: Going modern, you decide to pull page content using Ajax. You place the content in some div's innerHTML. The content you pull is dependent on some JavaScript. However, the page is loaded. So, the browser won't load anymore scripts automatically. The content fails unless you load the script when the page loads, before the Ajax-pulled content is loaded. In other words, if you have 30 content pages, each with a unique script, you have to load all 30 scripts on page load just in case the user requests to pull one of the content pages. -- kainaw ™ 12:33, 2 July 2009 (UTC)
I've been trying to understand how data is transmitted via modulation. Am I right in thinking that for short-distance transfer as in computers and USB (and ISDN for some reason), data are transmitted by serial/parallel digital communication - simply on-off-off-on etc.? But telephones, DSL, cable, optical fibres and radio all use modulation?
Am I then right in saying that DSL, for example, uses Discrete Multi-Tone Modulation and that this works in a way similar to that mentioned under Modulation#Digital_modulation_methods?
Why then is this not much faster than serial communication? Why is USB2 so much faster than ADSL (and even Fibre-to-the-home) when each symbol in ADSL can represent many bits compared to one bit in serial? And this is without going into the complexities of Orthogonal frequency-division multiplexing and Quadrature amplitude modulation. Why not have a serial internet given that USB3 is 5Gbit/s and presumably a robust signal as it is only binary? ASmartKid ( talk) 15:28, 2 July 2009 (UTC)
Does anyone know if it's possible to run two different versions of SQL Server on the same physical server if they are installed in different directories? Thanks in advance for your help.
I have a Linux home computer (not sure about details) and the backspace key has started making this symbol ( ç ) but the keyboard configuration says it should be backspace... If anyone could shed some light on the matter that would be greatly appreciated. 83.50.42.15 ( talk) 21:59, 2 July 2009 (UTC)
Yeah it is set in Spanish (I live in Spain) but it used to be absolutely fine and it just decided to go haywire with the backspace key for unknown reason 81.32.39.224 ( talk) 11:32, 3 July 2009 (UTC)
Done.. The message that comes up is Linux casacaracol-desktop 2.6.27-9-generic #1 SMP Thu Nov 20 21:57:00 UTC 2008 i686 GNU/Linux 81.39.56.119 ( talk) 10:51, 4 July 2009 (UTC)
Computing desk | ||
---|---|---|
< July 1 | << Jun | July | Aug >> | July 3 > |
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. |
Why does MySQL make columns specified as "Boolean" tinyint(1)s when bit(1) is available? Is there any way to have a group of Boolean columns stored internally as a bit field rather than giving each one its own byte? Neon Merlin 04:20, 2 July 2009 (UTC)
I get a 400 bad request while attempting to access YouTube with Google Chrome. Internet Explorer works fine for the site. Has anyone else noticed this? -- Blue387 ( talk) 05:56, 2 July 2009 (UTC)
Hi, whenever I open a new tab in Internet Explorer 8, I get a page that says
"The webpage cannot be displayed
Most likely cause:
•Some content or files on this webpage require a program that you don't have installed.
What you can try: Search online for a program you can use to view this web content. Retype the address. Go back to the previous page. "
and instead if "about:Tabs" being in the address bar, it says: "tbr:res?id=tabs&rep=1"
I'm running Windows XP SP3.
How can I fix this?
Thanks 144.138.21.100 ( talk) 06:32, 2 July 2009 (UTC)
Check "do not show this tab welcome message again" also, in tools/internet options you can set homepages for multiple tabs UNDER your initial homepage. If you do not do this, it will give you a generic welcome to tabs message Ivtv ( talk) 23:09, 8 July 2009 (UTC)
Hi friends, can u please describe for me the various methods in which intrnet connections are made possible? (2) what is network Topology? Bye. Kvees. —Preceding unsigned comment added by 59.178.188.221 ( talk) 08:00, 2 July 2009 (UTC)
I have a number of pen drives which I use to transfer data from one computer to another. Typical use would be to fill one up for a week with data from one computer, then move it to the other computer, copy all the data to that computer, then delete everything on the pen drive. So, I figure that's one read/write cycle per week, so it should last for years at that low usage rate. However, they don't last for years, but only months.
At first I thought I just had a defective drive, but now it's happened again. So, why might this be happening ? One theory I have is that while the data area only gets one read/write cycle per week, the index area is being updated every time I write a new sector. Since these are 32 Gb pen drives, that would mean there are some 64 million sectors at 512 bytes per sector. So, if there's an index that keeps track of the "highest occupied sector address" (or "lowest unoccupied sector address"), this might update 64 million times a week. In that case I could certainly understand why they would fail after a few months.
So, is this how they work ? If so, this seems to be a major flaw in their design. Is there any way to prevent them from doing this (say by having them only update that index after the copy operation is completed, instead of when each sector is written). Are there some brands that don't do this ? Are there some brands that include a small portion of more stable memory for this type of index space ? Any other solutions would be welcomed (I'm considering using a portable hard drive if I can't get the pen drives to last longer). StuRat ( talk) 12:19, 2 July 2009 (UTC)
In case it will help, let me describe some of the errors I get. On one flash drive I can write to about half of it, then it says "Device is write protected" and won't write any further. On another it says "File not found" when I try to write to it or read from it at all. I assumed these errors were the typical nonsense errors you get and that the actual problem is bad sectors on the flash drive. But how could I actually confirm that this is the real problem ? StuRat ( talk) 23:49, 2 July 2009 (UTC)
OK, "chkdsk" completed on the "file not found" flash drive, after a very long time (good flash drives are usually very quick). No errors were found except that it said "Cannot write boot sector". I take that to mean that the boot sector is bad. What would cause the boot sector to fail before the rest of the flash drive ? Is there any way to designate a new sector to be used as the boot sector ? StuRat ( talk) 01:20, 3 July 2009 (UTC)
We use only the highest quality components from the leading manufacturers to give you many years of worry free use
As I described in the section above, my flash drives die at an unacceptable rate. So, how can I make them last longer ? Should I use something other than the FAT32 file system ? (Remember that I need to access them in Windows XP and would also prefer to be able to access them in Linux.) Could heat cause them to wear out prematurely ? Would pointing a fan at them while in use help ? StuRat ( talk) 19:52, 3 July 2009 (UTC)
microwave technology? Sfan00 IMG ( talk) 16:52, 8 July 2009 (UTC)
Is there a "standard" method for handling the following problem: Going modern, you decide to pull page content using Ajax. You place the content in some div's innerHTML. The content you pull is dependent on some JavaScript. However, the page is loaded. So, the browser won't load anymore scripts automatically. The content fails unless you load the script when the page loads, before the Ajax-pulled content is loaded. In other words, if you have 30 content pages, each with a unique script, you have to load all 30 scripts on page load just in case the user requests to pull one of the content pages. -- kainaw ™ 12:33, 2 July 2009 (UTC)
I've been trying to understand how data is transmitted via modulation. Am I right in thinking that for short-distance transfer as in computers and USB (and ISDN for some reason), data are transmitted by serial/parallel digital communication - simply on-off-off-on etc.? But telephones, DSL, cable, optical fibres and radio all use modulation?
Am I then right in saying that DSL, for example, uses Discrete Multi-Tone Modulation and that this works in a way similar to that mentioned under Modulation#Digital_modulation_methods?
Why then is this not much faster than serial communication? Why is USB2 so much faster than ADSL (and even Fibre-to-the-home) when each symbol in ADSL can represent many bits compared to one bit in serial? And this is without going into the complexities of Orthogonal frequency-division multiplexing and Quadrature amplitude modulation. Why not have a serial internet given that USB3 is 5Gbit/s and presumably a robust signal as it is only binary? ASmartKid ( talk) 15:28, 2 July 2009 (UTC)
Does anyone know if it's possible to run two different versions of SQL Server on the same physical server if they are installed in different directories? Thanks in advance for your help.
I have a Linux home computer (not sure about details) and the backspace key has started making this symbol ( ç ) but the keyboard configuration says it should be backspace... If anyone could shed some light on the matter that would be greatly appreciated. 83.50.42.15 ( talk) 21:59, 2 July 2009 (UTC)
Yeah it is set in Spanish (I live in Spain) but it used to be absolutely fine and it just decided to go haywire with the backspace key for unknown reason 81.32.39.224 ( talk) 11:32, 3 July 2009 (UTC)
Done.. The message that comes up is Linux casacaracol-desktop 2.6.27-9-generic #1 SMP Thu Nov 20 21:57:00 UTC 2008 i686 GNU/Linux 81.39.56.119 ( talk) 10:51, 4 July 2009 (UTC)