Of course 3s isn't interchangeable with 3ft when measuring a 4 dimensional object. Everyone knows that 3s is the same as 3m not 3ft. You've got to use si units for these things to work out neatly.
£12.99 for two including VAT. So that £11.06 before tax. The exchange rate is around 1.8887 right now so $20.88 for two. Which makes it $10.44 for one AA.
Still massivly overpriced but not as high as you said.
Because mixing units is fun, throwing in the odd lb per square cm is a great way to see if someone is paying attention.
Or maybe it was so that people who only have a feel for one system don't need to go and look up conversions. These numbers are purely to give an impression of size, it's not like they aren't being used to design the thing.
Or maybe it was because the approximation in feet results in an error that is less than the rounding error in the published number and so the difference is meaningless.
Reading too much accuracy into approximate numbers and then complaining about ~2% errors in numbers given to 2 significant digits can also lead to errors.
Let's start blasting noise over GHz of bandwidth all at once.
Having said that commercial UWB products have been around for years. This is the first commercial wireless USB system to use UWB not the first product to the technology.
You: If it's done properly it would be harder to produce. [example of how the system could be done better]
Me: But it's not being done properly. These things have already been cloned.
You are welcome to talk about anything you like. Personally I was talking about passports and made no mention of chip and pin systems in the UK or any other country.
These things have already been cloned. A passport has to last 10 years. It's say it's a fairly safe bet that the encryption used will be cracked wide open in far less time than that.
The Inquirer: A news site started by a group of people who left the Register several years ago including the founder. They are sometimes wrong but not by much e.g. last friday they had news from a reliable source on the AMD - ATI story and that the official annoucement would be on monday. They did however get some of the financials wrong.
The Enquirer: The best way to keep track of Elvis's current location.
Anything from 10% to 90% charge will be between 3.6 and 3.8 Volts, the discharge curve is not even close to linear for Li-ions or Li-polymers. Also voltage is very temperature dependent. The same cell at the same charge can swing by 0.3-0.4V depending on the temperature without going outside its operating range.
Basically voltage on a Li cell is a meaningless when trying to work out the percentage charge left. Just part of the fun when dealing with them.
Rechargable packs are typically shipped at ~30-40% charge. This is done partly for safty reasons and partly because it's better for the cell life. Storing them at full charge can ruin the capacity if they get warm.
Wikipedia is for reference, it's not a news site.
on
When Wikipedia Fails
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· Score: 4, Insightful
You don't expect the encyclopaedia on your shelf to be up to date and accurate on something that happened half an hour ago. Wikipedia was never intended as a news service, anyone who treats it like one is going to be sorely disappointed.
The role of Wikipedia is for reference, give it time and the information there settles down to the truth or at least something close to it.
Don't ask it to be something that it isn't any you won't be disappointed.
Someone should tell Microsoft, they don't need to pay for all that security on the rooms where they are printed.
In fact, let's replace the COAs with photocopies of a a piece of paper saying "Fine, go ahead and run Windows if you must. But don't come crying to us when you break it."
While on an H1-B you pay all of the tax and social security but you do not add any of the costs. You can't claim wealthfare, you can't claim social security.
Add that to the legal costs and most companies will only consider an H1B if they have no other choice.
A few companies may try to get cheaper workers but for most H1-Bs it's simply a case of having no other choice if they want a skilled worker.
They have to be the correct type floating point ops. i.e. all the same and not involving any data outside the CPU. If you want that sort of performance no matter what you throw at it then things get a lot more complex.
The FPU will be as good as you design it to be. In comparison to custom built hardware an FPGA sucks, it's big, slow and power hungry. If you were to take a standard FPU and build it into an FPGA it would be useless. But the whole point is that you don't need a general use FPU that can do everything. You only have one that can do the one specific operation that you need. e.g. If you need to add three 158 bit floating point numbers you have a bit of logic that can do that. It's 158 bits wide, has 3 inputs and one output. Who cares if it only runs at 1/10 of the clock speed of your 64bit cpu, it's still going to be faster. Getting the system to be able to do that on the fly is the hard part, 99 times out of 100 it's probably quicker to do the work on a standard CPU than to work out how to configure the FPGA. But if you need to do the same operations over and over again then the advantages become huge.
As for the memory bandwidth issue, most large FPGAs include some fairly large amounts of RAM built into them. Certainly enough to do some basic data cacheing and queuing. It doesn't solve the problem but it helps.
Minor nitpick correction: 400MHz xscale not 400MHz Arm.
The xscale is an Arm 9 compatible part, same instruction set but they added a couple more pipeline stages. This means it will clock faster than a true arm 9 but averages a significantly lower throughput per clock cycle.
In other words standard Intel desgin for marketing.
Slashdot Mirror
Of course 3s isn't interchangeable with 3ft when measuring a 4 dimensional object.
Everyone knows that 3s is the same as 3m not 3ft. You've got to use si units for these things to work out neatly.
£12.99 for two including VAT. So that £11.06 before tax.
The exchange rate is around 1.8887 right now so $20.88 for two.
Which makes it $10.44 for one AA.
Still massivly overpriced but not as high as you said.
Because mixing units is fun, throwing in the odd lb per square cm is a great way to see if someone is paying attention.
Or maybe it was so that people who only have a feel for one system don't need to go and look up conversions.
These numbers are purely to give an impression of size, it's not like they aren't being used to design the thing.
Or maybe it was because the approximation in feet results in an error that is less than the rounding error in the published number and so the difference is meaningless.
Reading too much accuracy into approximate numbers and then complaining about ~2% errors in numbers given to 2 significant digits can also lead to errors.
Let's start blasting noise over GHz of bandwidth all at once.
Having said that commercial UWB products have been around for years. This is the first commercial wireless USB system to use UWB not the first product to the technology.
You:
If it's done properly it would be harder to produce. [example of how the system could be done better]
Me:
But it's not being done properly.
These things have already been cloned.
You are welcome to talk about anything you like. Personally I was talking about passports and made no mention of chip and pin systems in the UK or any other country.
You seem to be the only person talking about credit cards. This thread is about e-passports.
Chip and pin is a very different matter, it is much harder to fake 4 key presses than to fake a signiture.
http://it.slashdot.org/article.pl?sid=06/08/03/131 4207
These things have already been cloned.
A passport has to last 10 years. It's say it's a fairly safe bet that the encryption used will be cracked wide open in far less time than that.
The Inquirer: A news site started by a group of people who left the Register several years ago including the founder. They are sometimes wrong but not by much e.g. last friday they had news from a reliable source on the AMD - ATI story and that the official annoucement would be on monday. They did however get some of the financials wrong.
The Enquirer: The best way to keep track of Elvis's current location.
Other than the PS1?
You can still buy the console let alone games for it.
Anything from 10% to 90% charge will be between 3.6 and 3.8 Volts, the discharge curve is not even close to linear for Li-ions or Li-polymers.
Also voltage is very temperature dependent. The same cell at the same charge can swing by 0.3-0.4V depending on the temperature without going outside its operating range.
Basically voltage on a Li cell is a meaningless when trying to work out the percentage charge left. Just part of the fun when dealing with them.
Rechargable packs are typically shipped at ~30-40% charge.
This is done partly for safty reasons and partly because it's better for the cell life.
Storing them at full charge can ruin the capacity if they get warm.
You don't expect the encyclopaedia on your shelf to be up to date and accurate on something that happened half an hour ago. Wikipedia was never intended as a news service, anyone who treats it like one is going to be sorely disappointed.
The role of Wikipedia is for reference, give it time and the information there settles down to the truth or at least something close to it.
Don't ask it to be something that it isn't any you won't be disappointed.
Someone should tell Microsoft, they don't need to pay for all that security on the rooms where they are printed. In fact, let's replace the COAs with photocopies of a a piece of paper saying "Fine, go ahead and run Windows if you must. But don't come crying to us when you break it."
While on an H1-B you pay all of the tax and social security but you do not add any of the costs. You can't claim wealthfare, you can't claim social security. Add that to the legal costs and most companies will only consider an H1B if they have no other choice. A few companies may try to get cheaper workers but for most H1-Bs it's simply a case of having no other choice if they want a skilled worker.
Those were just the current Intel sockets. Looks like AMD will be the next time they feel like writing something.
They have to be the correct type floating point ops.
i.e. all the same and not involving any data outside the CPU.
If you want that sort of performance no matter what you throw at it then things get a lot more complex.
The FPU will be as good as you design it to be.
In comparison to custom built hardware an FPGA sucks, it's big, slow and power hungry. If you were to take a standard FPU and build it into an FPGA it would be useless.
But the whole point is that you don't need a general use FPU that can do everything. You only have one that can do the one specific operation that you need. e.g. If you need to add three 158 bit floating point numbers you have a bit of logic that can do that. It's 158 bits wide, has 3 inputs and one output. Who cares if it only runs at 1/10 of the clock speed of your 64bit cpu, it's still going to be faster.
Getting the system to be able to do that on the fly is the hard part, 99 times out of 100 it's probably quicker to do the work on a standard CPU than to work out how to configure the FPGA. But if you need to do the same operations over and over again then the advantages become huge.
As for the memory bandwidth issue, most large FPGAs include some fairly large amounts of RAM built into them. Certainly enough to do some basic data cacheing and queuing. It doesn't solve the problem but it helps.
Minor nitpick correction: 400MHz xscale not 400MHz Arm. The xscale is an Arm 9 compatible part, same instruction set but they added a couple more pipeline stages. This means it will clock faster than a true arm 9 but averages a significantly lower throughput per clock cycle. In other words standard Intel desgin for marketing.