Live data from Hacker News

Apple releases Ipad 3

apple.com

311–320 of 346 posts

Re: Apple releases Ipad 3

#311
post #82

It should be noted that the limited data plans for both AT&T and Verizon mean that at the max 4G speed of 73 Mbps, you could use all your bandwidth for the entire month in less than three and a half minutes (2 GB plan). The overages of $10/GB per month on both services mean once you go over your plan, you'll be looking at a little over $5/minute in new charges. It is possible (though highly unlikely) to rack up over…

Let's not be silly. Existing LTE phones on Verizon get a real-world top performance in the 20Mbps range. Now, that's great and all, but no one will ever get even 50% of what's basically the signaling rate of 73Mbps. Also, your download patterns are unlikely to change a lot. It'll still be email, web surfing and some youtube. LTE makes netflix possible while not on wifi, but that's about the most data-hungry thing an…

I am not in the US but with my MiFi cabled to a computer I get around 40-60 mbit (a bit less when using wifi to share the connection).

Re: Apple releases Ipad 3

#312
post #49

Earlier quoted context omitted.

I did a test a 1024x768 PNG vs the Same PNG at 2048x1536. 299k vs 664k. So for raster images it more than doubles the footprint, however if you use vector assets there should be little impact.

But you don't store compressed PNGs in RAM for display by the GPU. Does the GPU even support lossless texture compression? I would imagine it supports lossy texture compression. Edit: It is also interesting to see that the ~ 2x increase in the size of the PNG can be explained by PNG's run length encoding. When you double the pixels in each direction, RLE should readily compress the horizontal pixel replication but no…

Yeah, iOS device GPUs support lossy texture compression in the form of PVRTC. There's no lossless texture compression support, as far as I know. (I'm talking in-memory here, obviously, not on disk as PNG or JPEG or whatever else.)

Re: Apple releases Ipad 3

#313

Earlier quoted context omitted.

There are three possible explanations for your comments: 1) You're a multimillionaire without aspiration, and shouldn't be giving financial advice to the rest of us non-millionaires. 2) You're a troll, or are acting like one to get yourself hellbanned for some reason. 3) Your recent spat of negative karma comments are the result of some kind of new mental health issue, and you need to see a doctor.

So, in the strange little world you inhabit, only fabulously wealthy people eschew credit cards and don't spend their life worrying about their credit score? What a terrible place that must be. And what kind of crap-ass site would ban someone for the three (out of five) comments I've made today which have been downvoted? Pretty sure I can spot the actual troll here.

False equivalency, eschewing credit cards is different than not paying them.

If you make enough comments that are bad enough then your account is likely to be banned. If that's your goal then at some point along the way you'll be only three comments in.

(I am not remarking on the quality of your other comments; I have not read them.)

Re: Apple releases Ipad 3

#314

Earlier quoted context omitted.

But you don't store compressed PNGs in RAM for display by the GPU. Does the GPU even support lossless texture compression? I would imagine it supports lossy texture compression. Edit: It is also interesting to see that the ~ 2x increase in the size of the PNG can be explained by PNG's run length encoding. When you double the pixels in each direction, RLE should readily compress the horizontal pixel replication but no…

It seems Apple uses a "modified" png standard for iOS (enabled by default) that compresses the images even more when they are added to the App Bundle. http://iphonedevwiki.net/index.php/CgBI_file_format#Decoding

True, though as jevinskie says, we're not talking here about the way images are stored on disk but about what needs to go in the GPU memory.

Re: Apple releases Ipad 3

#315

It says a lot that the longest thread thread here is about data plans. I guess this is a logical iteration of the iPad 2 but they really seem to have left the door open for an Android manufacturer to leap ahead here. Both this and the 4S feel like Apple on autopilot.

What would suggest they should have done to stay ahead?

Re: Apple releases Ipad 3

#316

Earlier quoted context omitted.

He's not talking about resolutions provided (and my Vaio has a 1920x1080 15" display if you're looking for examples there) he's talking about support for different DPIs. Windows 7/8 "kinda" work in this regard - I have to use accessibility addons in firefox to make it play nice, IE just stretches everything, I have no experience with OSX.

Really? The 'different DPI' settings have been in since Vista, and worked pretty pervasively.

Changing DPI settings still screws up various applications on Windows 7 (fonts on various UI elements don't scale consistently, e.g. Visual Studio 2010 is messed up, games are usually completely broken even modern ones like Starcraft II, etc.) and overall make the system very frustrating to use (especially annoying since I have a pair of IBM T221s capable of 3840x2400). That being said it's still worthwhile when I'm in e.g. Lightroom.

Re: Apple releases Ipad 3

#317
post #279

Earlier quoted context omitted.

"why not iPad 3? Seriously!" The video shown at the end of the announcement event has an Apple employee referring to it as "the third-generation iPad". This seems very strange to me, considering how on-message Apple has ALWAYS been in the past. It's just... sloppy. I wonder if Apple has a future beyond its current momentum. I'll be convinced otherwise ifwhen they release another world-changing product that wasn't inv…

Apple uses the same terminology with MacBooks and iPods. "Sixth generation iPod" etc. Apple is known to focus on details, so they probably thought this through and have a good reason to back away from the numerals.

Yeah I thought it was obvious.

Numbers are messy, it's better to have a product represented by its name and have its generation just be a property.

That's why they make the extra effort of saying "third-generation" rather than iPad3. They don't want it to be referred to as an iPad3, just as an iPad.

I was surprised they called the second one iPad2.

Re: Apple releases Ipad 3

#318

Earlier quoted context omitted.

Really? What do you know about the cost of infrastructure and its capacity? Thank you.

I know enough to conclude that it hasn't gotten more expensive to ship bits in the past ten years. Yet, here we are in the US, shifting from unlimited data plans to rate-limited, capped plans, and no one seems to have come up with a convincing explanation as to why that's occurring.

Of course it has become more expensive to ship bits. More people are finding more uses. Are you deluded or what? How disconnected from reality and how entitled can one be?

Re: Apple releases Ipad 3

#319
post #153
post #120

Earlier quoted context omitted.

But the other thing is quality. Viewing angles and color gamut tends to be horrible on laptops. Not so on the iPad.

There was a single plant which made big laptop IPS panels (15-17") which got shut down; they were used in IBM FlexView on the Lenovos up to the T60p (2006). IPS is still rare between iPad size and small high-end monitor size (20"). I'm still sad that even the MBP 17 comes with a 6-bit PVA panel. It's a nice panel, but dramatically inferior to an 8 or 10 bit IPS.

The MBP comes with TN, not PVA. PVA is actually a fairly good technology. S-PVA has the darkest blacks of all panels, but is really really slow. You can see the ghosting when the camera pans in a movie.

Re: Apple releases Ipad 3

#320

Earlier quoted context omitted.

There are three possible explanations for your comments: 1) You're a multimillionaire without aspiration, and shouldn't be giving financial advice to the rest of us non-millionaires. 2) You're a troll, or are acting like one to get yourself hellbanned for some reason. 3) Your recent spat of negative karma comments are the result of some kind of new mental health issue, and you need to see a doctor.

So, in the strange little world you inhabit, only fabulously wealthy people eschew credit cards and don't spend their life worrying about their credit score? What a terrible place that must be. And what kind of crap-ass site would ban someone for the three (out of five) comments I've made today which have been downvoted? Pretty sure I can spot the actual troll here.

Your credit report is pulled when you move and open new utility accounts, when you apply for cell phone service, by your landlord before renting you a home, in some types of background checks, and many other situations that have nothing to do with being extended a line of credit.
Post reply on HN