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Comment: As Expected (Score 2) 262

I knew when I saw the title of this, Apple was going to get flamed here by slashdotters no matter what. I was not let down. It's hard for me to understand why good news is turned into bad news on this site so often based solely on a brand name. Is it not respectable that a company with a huge global presence would be striving to be more efficient with the energy they use, and succeeding? Would there be this much flaming going on if it were Google, or IBM, or Samsung?

I do work for many IBM data-centers across the country. Apple use's IBM's products for their datacenters, and I know these servers and storage racks are not power sippers. I find it astounding that they could run one of them (much less all of them) on purely renewable energy. An entire large datacenter of IBM equipment running off solar power and fuel cells is truly a feat I'd love to see in person.

Comment: Re:a new connection format (Score 1) 72

by needsomemoola (#42464099) Attached to: Quad-Core Stick PC Runs Ubuntu

Screw the keyboard and mouse. Someone needs to take this and integrate it with LeapMotion's motion control sensor. Mount it to your coffee table or put it on your couch and just control the TV with your hands. That's a bit of work, and the controller hasn't shipped yet.... Small set back. Maybe an app for your phone or tablet even would be far better than a keyboard or mouse for a TV interface.

Even cooler would be to (in addition to an app or motion controller) add voice control, maybe something that integrates with Google's Knowledge Graph tech.

Maybe combine the functionality of the two. The problem with voice control is if it's active, you don't want it to respond to everything you say in your living room. Maybe you could have a hand gesture that the leap sensor recognizes where Google's KG starts listening. You could just wave your hand, say "play Fringe" and have the latest episode start playing.

Oh the possibilities. I can't wait for the future.

Comment: Re:Many of us welcome true mobile computing... (Score 2) 230

by needsomemoola (#42463695) Attached to: Who Would Actually Build an Ubuntu Smartphone?

"Mainframes" are alive, well, and pretty powerful depending on your use case. IBM's zSeries is probably the most prevalent. They're nothing to laugh at either. We run hundreds of VMs on the ones we run in our datacenter. They are mostly used for enterprise use, so end users don't really see or hear about the progress and technology behind them anymore since the concept is... like you said, old news as of 20 years ago.

Comment: Re:Summary implies that tablets are not a fad (Score 1) 243

by needsomemoola (#42389871) Attached to: Acer Rethinks the "Tablet Bubble," Launching $99 Tablet

That's true for now, but the lines are blurring. With something like Logitech's smart-cover-keyboard, I can turn my tablet into, basically, a laptop. As tablets get more and more powerful and better accessories come out, I think a lot of people will feel more comfortable throwing out their PC once it's EOL, and not buying a replacement PC, especially people who don't game hard or do mouse-intensive tasks.

I recently picked up a 7-inch tablet, and it's blurring the lines for my phone now. It's small enough to mount or set in my car is a fantastic GPS device, and it has video chat and instant messaging. It does all the things my larger tablet does. So now I have a PC which overlaps with functions of my tablet, and a smaller tablet that does all the same things in more places and a phone that overlaps the functions of the tablets.

I'm curious where it will settle (if it ever does). With projects like LeapMotion.com, even the mouse may be obsolete eventually. Then there's the new phenomenon of HUD glasses and augmented reality glasses that are in the pipe. At this rate we may one day have contacts that display virtual interfaces in front of us that we can interact with directly with our hands and never need PCs or Tablets or TVs or hand-held phones again.

Comment: Re:Where did you post this message from? (Score 1) 243

by needsomemoola (#42389811) Attached to: Acer Rethinks the "Tablet Bubble," Launching $99 Tablet

That could very easily have been dictated through a phone or tablet. I've composed entire multi-page emails by just speaking them. And the grammar of "dictation" is often better than when I type it myself. I can speak a few paragraphs much faster than I can type them. It's less practical for complex punctuation though (parentheses, custom spellings, apostrophes, slang, etc...). And it's certainly not good for programming. But The post by Kergan would be simple to dictate.

Comment: Texting is moving away from carriers (Score 1) 342

by needsomemoola (#42184815) Attached to: Cops To Congress: We Need Logs of Americans' Text Messages

It won't matter. Eventually everyone will be using encrypted texting over data anyway (instead of via carrier texting). If you use iMessage, you're already using encrypted texting over your data connection. These can't be collected (legibly) by carriers. You can also get free texting apps that use data rather than carrier networks. Android users can use Google Talk to IM now as well. Carrier texting is on it's way out, eventually.

Comment: Re:Um... (Score 1) 130

It sounds like you are running two 2.4 GHz APs then, which means you are using 2 of the 3 non-overlapping channels in the band assuming they are using 1,6, or 11, and not the same one. I would check the channel planning to be sure you're getting the best signal quality. If you're in a busy place (dirty air, high RSSI from other APs around you), you would probably get better all around performance if you use just one AP on the best available (1,6,11) channel. I think the 4200 will let you force n-only for the one. Oh, and if you are in a nice isolated area with no noise around you, set the n-network to use the 40 MHz window to double your throughput for that one (and any new) N device. Make sure the G-radio is not on 6, then the N can be on 1-6 or 6-11.

Then next time you buy something, make sure it's 5 GHz capable. :-D I don't know your local shopping situation, but all the "tech" stores around here (Staples, Best Buy, etc...) have at least a couple models of dual-band USB 2.0 adapters in the $40 range.

This town is a joke if you need real computer parts. We used to have CompUSA, and they had at least most of what I usually needed. Then they went under. Circuit City had some stuff, but it wasn't much, and they went under. We need a Fry's real bad.

Comment: Re:Um... (Score 1) 130

One good thing 5 GHz has going for it is you don't get cross-channel interference like you do in 2.4 GHz. So of the 23 channels you have to work with, if you bind 2, or 4, or 8 (apparently), you aren't hurting channels adjacent to that. In 2.4, with 802.11n using a 40 MHz window taking up channel 6 through 11, you're still causing interference for 3-4 and 12-14.

Your point is true. 802.11ac is going to be a pain for people like me that have to provide wireless connectivity for high-density areas and events. And eventually it will be a pain for residential. And home router manufacturers will continue to make bonded channels the default setting to make sure customers experience what they have printed on the outside of the box.

My hope is that they take a IPv6 approach at the next cycle. Set up a band of frequency with a few thousand channels available, more than we can use in the foreseeable future. On /. here I've seen articles about using Terahertz frequencies for this. Once you get that high, surely there's room for a huge number of channels to work with. I don't understand the physics for the idea of THz WiFi though. We know that lower frequencies penetrate and go further (both an advantage and PITA of 2.4), so how can a leap multiple orders of magnitude work? Does the penetration trend continue linearly? Tons of questions I'll probably go Google after this. haha.

As for where you live.... for me, there is not even ONE RADIO on 5 GHz in my neighborhood. I have free reign. I don't even need to channel plan. I just set my router to pick whatever channel it wants. For 2.4 I did a frequency analysis and picked the least noisy. I keep waiting for more 5g APs to pop up. Our local cable company (and DSL apparently) now insist on installing their own hardware (a completely separate issue that pisses me off), and it's ALL 2.4 GHz equipment. Good for me, bad for everyone else. I guess I got mine, Jack?

Another thing to keep in mind is that you only need a 20 dBi (about 20%, relatively) advantage over the next loudest radio on a channel to have good throughput. The idea is to be louder enough to be distinguishable to your client devices (loudest boombox in the room). So as long as the AP density in your area isn't too high, even if there's noise on every channel, you just need to have a signal that's louder for as far a distance as you want to use it. If you want to ensure you get your signal, use multiple APs around your house and plan the channels carefully by surveying what's in the air at each point you place one. If I had a longer house, or more floors, I would probably put in a few myself. Everything is pretty equidistant from a center point as it is though. I've done surveys and channel planning for local businesses though. It makes a world of difference in performance. And if you enjoy puzzles, it can be fun. :)

I just read your correction post. That's pretty much what I was thinking a few paragraphs back.

Comment: Re:Um... (Score 1) 130

I actually had the E4200. Nice looking, and worked better than it's predecessor. For a while my Linksys devices would just degrade very quickly, first with constant reboots needed to keep throughput working, then eventually throughput just dropped down to about 1 Mbps. It was ridiculous.

Anyway, on any dual-band router, including the E4200, you can name your bands separately. For me I named them after my pets. That's irrelevant but for this purpose it made sense. I named my 2.4 GHz network "Tigger" which is my older pet, and my 5 GHz network "Autumn" which is my younger pet that will probably live a lot longer and not be weighed down by the problems of her age like Tigger. It's all very poetic, for a pet owning geek, I guess.

Anyway, any devices that is dual-band can see both of them, so I always have those jump on the Autumn (5 GHz) network. Anything that's single-band can only see the Tigger SSID (2.4 GHz). You can leave them named the same, but this leaves it up to the client and AP to decide what radio it ends up using. I liked knowing that I was getting the advantage of my 802.11a/n radio's throughput and low-noise connection. And since 2.4 GHz travels further, when I'm out in the yard or something I can still connect to that with decent strength if 5 GHz is weak that far out.

One of the biggest benefit of this setup is, since each radio is basically "hub" technology (half-duplex, single-bus behavior), I get much better performance in both bands by dividing up the collision domains like that.

As for 802.11n, this is available in both bands, like you pointed out, but by doing the multi-SSID approach, you can decide which band you use your n-device on. For me I decided to disable n on my 2.4 band because I didn't want it to jump up to the 40 Hz window, stomping out 2 of the 3 non-overlapping channels in 2.4 GHz range. On the Linksys you can control this though. Also, if you can disable B w/o disabling G, you should. If there is a devices connected to your 2.4 radio with 802.11b, it will bring all other devices to their knees (B-level throughput) while it's connected. For my 5 GHz radio, I forced N-only so that I know I get the full throughput, and I know that all of my 5 GHz devices are 802.11n capable. This has the added benefit of not allowing devices on that will pull your N speeds down to A speeds.

There's a lot of fun to be had in planning out your wireless network. Lots of manipulation you can do, even on home routers, to get the performance you want. If you really want to have control of what's going on around you, and have lots of money, get yourself a Xirrus Array (XR-1000 is plenty for home use). You can play terrible tricks on your neighbors with deauths and blasting out channels at high RSSI. I don't recommend this, of course.

You might consider looking at DD-WRT for your E4200 if you want to add a ton of cool features that you can't normally get w/o expensive enterprise gear. VLAN tagging, SIP, charge for hotspot, guest network (most have this anyway now), etc....

Comment: Re:Um... (Score 1) 130

I've made a most of my purchases with a 5 Ghz radio being a huge deciding factor. It's one of the main reasons I've gone almost all Apple for mobile devices. Every model of the iPad has had both bands. The iPhone finally caught up this year. Most Android tablets have been 2.4 only, which for me was crippling because I work as a network architect for a lot of high-density technical conferences. No matter how many low-power microcell radios you put out, you can't get enough people on with decent performance for a packed arena or auditorium on 2.4. My house is 100% 5 GHz devices now, with 2.4 running only for the purpose of guests being able to use my wireless.

The migration to 5 GHz is happening, and lay people don't realize it. It's hard to explain to a salesman at a vendor booth who has no idea what GHz even stands for, who's complaining his product demo using an Asus Transformer isn't working. I always end up drawing lots of circles on a piece of paper, explaining why the band is so limited, any why the only way it would get better using his hardware in this environment would be if the FCC opened up more channels in that band.

My hope is that in the next couple years, 2.4 is old news. 5 GHz is more than capable of the most dense environments, including airports and concerts. No need for this beating of a dead horse that MIT is doing. I respect them for it, but I hope it's not really necessary.

Comment: Re:Um... (Score 1) 130

No. Any AP can use any (legal) channel. In the 2.4 GHz range (802.11b/g/n) this is particularly a problem because of the lack of channels. Anyone with a mobile hotspot is an AP, and they are usually set up to pick the "least congested channel" with no regard for the 1,6,11 rule for 2.4. If you turn on a scanner in an airport you'll se a very ugly picture for the 2.4 range. Tons of overlapping of channels and RSSI levels. With people ignoring the 1,6,11 rule of thumb, if you are on channel 6 (for example), you have interference from APs broadcasting (mostly) from channel 4 through 8. There's no good way to police it in high-density areas. At least in a neighborhood you could track down which house is on which channel and ask your neighbor to use a specific channel. 99% of the time they have no idea what you're talking about.

The solution is for everyone to move to 5 GHz (802.11a/n/ac). It's happening, slowly. The biggest help for this was probably with Samsung and Apple adding the 5 GHz band to their phones this year. Eventually 2.4 GHz will be a relic, I hope.

Comment: Re:complain (Score 1) 347

by needsomemoola (#41893395) Attached to: Google Doubts Apple Will Approve Its New Maps Application

It seems obvious to me that Apple had to break it off from Google at some point anyway. Using one of your biggest competitor's core features as a core features in your own products is not desirable, especially for a company that wants to have full creative control over their products (from the hardware through the software). I imagine if Google had given turn-by-turn functionality then Apple Maps would be delayed, but this missing feature was starting to become a sore spot for them and iOS users.

I think the new management at Apple is a major contributor to this as well. Steve had this Maps projects going for at least a year or two, so it was inevitable. But based on iOS 6's bugs and the recent iTunes release scheduling change, it was probably rushed. They changed the iTunes release to fit a "ship it when it's done" schedule thankfully. If they had started this before, I imagine Apple Maps would have made it's debut in 6.1 not 6.0.

Also, Apple isn't recreating all of the mapping db information, they are sourcing it from companies that have also been doing it for a very long time (TomTom, Garmin, etc...). This should give them a good jump on implementing features they lost with Google Maps.

I've personally had a very good experience with Apple's Maps so far. It's actually been more accurate than Google maps on multiple occasions now.

Comment: Re:Reaching the SSH server from a vehicle (Score 1) 232

by needsomemoola (#41832285) Attached to: Nexus 7 and Android Convertibles Drive Massive Asus Profit

Sorry. I meant using cellular data require a cellular data plan ($). I was comparing to using a laptop. Even those with a CDMA or GSM radio don't give you free data.

I was surprised the 7 doesn't ship with a cellular radio, but I suppose the point is cost so it can compete, and that extra hardware drives production cost up. I looked at the Nexus 7 in person for the first time today. It's quite nice and zippy.

For me my iPad has met all my requirements for travel. It's a subjective decision for sure.

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