Become a fan of Slashdot on Facebook


Forgot your password?
Note: You can take 10% off all Slashdot Deals with coupon code "slashdot10off." ×

Comment Re:From TFA: bit-exact or not? (Score 1) 162

There used to be a web page called "Your Eyes Suck at Blue". You might find it on the Wayback machine.

You can tell the luminance of each individual channel more precisely than you can perceive differences in mixed color. This is due to the difference between rod and cone cells. Your perception of the color gamut is, sorry, imprecise. I'm sure that you really can't discriminate 256 bits of blue in the presence of other, varying, colors.

Comment Re:From TFA: bit-exact or not? (Score 5, Insightful) 162

Rather than abuse every commenter who has not joined your specialty on Slashdot, please take the source and write about what you find.

Given that CPU and memory get less expensive over time, it is no surprise that algorithms work practically today that would not have when various standards groups started meeting. Ultimately, someone like you can state what the trade-offs are in clear English, and indeed whether they work at all, which is more productive than trading naah-naahs.

Comment Re:Yes - known for years. (Score 1) 434

My MacBook Pro 13" can display a max resolution of 3360 x 2100. It's kind of useless to switch to this resolution (you'll need a 3rd party utility to do so -- I use SwitchRez X, but you can also do it via the terminal if you are handy). I suppose it's useful if you plug in an external monitor. I think they've updated this model. The top end 15" could probably be much higher than that -- but again, why? You'd need a magnifying glass to make that useful.

The latest MacBook Pro at about $1800 has these specs;
2.9GHz dual-core Intel Core i5
Turbo Boost up to 3.3GHz
8GB 1866MHz LPDDR3 memory
512GB PCIe-based flash storage1
Intel Iris Graphics 6100
Built-in battery (10 hours)2
Force Touch trackpad

If you max out at $2500, well you get;
2.5GHz quad-core Intel Core i7
Turbo Boost up to 3.7GHz
16GB 1600MHz memory
512GB PCIe-based flash storage1
Intel Iris Pro Graphics
AMD Radeon R9 M370X with 2GB GDDR5 memory
Built-in battery (9 hours)2
Force Touch trackpad

BTW the PCIe-based flash storage is faster than almost any RAID. Up to 4X the normal flash storage on the 512 GB models.

The battery specs are accurate, not sure about the competitors.

So while the Macs aren't the cheapest bang for the buck around - they tend to be more than just their specs. They remove the bottlenecks, whisper quiet, stable.

Though if I had the money, I'd go for the discrete graphics card. And I can't wait for the new OS, as Yosemite seems to not be as stable as Mavericks.

As far as TCO, I don't NEED to buy a lot of utilities, anti spyware and the like, or remove shovel-ware buried in my system. The average Windows user may spend less up front, but they seem miserable with a hybrid OS 8, trojan horses hijacking their system (my mother went through various apps like Kaspersky and never got her system working right).

But I'm not preaching -- I don't care. Use what you want. There are robust PCs but you pay for them -- so then you are left with the OS.

Comment Re:No, not economics at all (Score 1) 185

I don't have to apologize for national fiat currency, it's silly too, and I don't keep my assets in cash. My problem with Bitcoin is that it is even less credible than "the faith and credit of the United States government", which has been the justification of the Dollar since it was allowed to float. It seems to be nothing but "wish and it will come true".

Comment Re:Are they going to fine airlines for doing the s (Score 1) 188

No, the small-aircraft owners aren't at risk of messing up their avionics. They are, however, consciously messing up the cellular network for everyone else. You see, you are supposed to be in range of just a few cells when you use your phone, so that we get frequency reuse between cells. If you are at altitude, you are in line-of-sight communications with all of the cells out to the visible horizon on all sides. And the frequencies you are using are probably locked out from reuse over that entire vast area. It would not take very many phones at altitude to disrupt the entire system.

Comment No, not economics at all (Score 4, Insightful) 185

People who received a play-money system from a mysterious unknown person and actually convinced themselves that it has value are now facing a schism over the money market failing to grow without bounds. Unless, that is, the software is modified in a way that might, over time, disincent people from playing the game.

I can't be the only one who is thinking that the only problem is that these folks believe bitcoins have value.

Hell, I thought that the fiat currency of nations was a bad deal. This is an order of magnitude worse.

Comment Re:Are they going to fine airlines for doing the s (Score 1) 188

No, the real problem is that you have line-of-sight communications to every cell site until the visible horizon. This tends to use up frequencies over a very large area. In general the antennas have been engineered not to work at high angles, but this can't be complete and the ones on the horizon may see you at the same angle as their regular users.

Comment Re:He's got company (Score 1) 442

The Spaniards got into Florida and much of the SouthWest -- but that wasn't where most of the Indian population was.

The English foothold in the North East would never have happened without spreading disease.

The remaining populations were wiped out by Genocide that would make Hitler blush.

Comment Re:He's got company (Score 1) 442

Most Native Americans were wiped out by Yellow Fever, Measles, Chicken Pox, Small Pox and other diseases the Europeans brought;
Same could be said for how the Conquistadors conquered the Aztecs and Mayans. Not military tactics or steel, just dirty, dirty bodies and the immune systems of the Europeans who didn't understand hygiene.

My opinion is that if the Indians had been less cultured, clean and understood medicine a little less, they would have kept the riff-raff from gaining a foothold. To get some perspective, the Indian cities in North America had higher populations than Europe. About 100 million in America vs. 50 million in all of Europe. It's believed that burning trees from Indian populations may have caused the little ice age in Europe -- so there might be karma at play.

It's ironic I'm getting answers from some Yahoo, and they didn't link to Slashdot for the answer.

"If Diet Coke did not exist it would have been neccessary to invent it." -- Karl Lehenbauer