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Lo que opinan la prensa y otras voces ...
Friday, November 14, 2014
The 10 Best Tablets (PCMagazine)
Thursday, November 13, 2014
What is Miracast and Why Should I Care?
Miracast is a wireless display standard designed for mirroring a smartphone, tablet, or PC’s screen to a television without requiring any physical HDMI cables. It’s becoming more widespread with each passing day.
The Roku 3 and Roku Streaming Stick recently gained support for Miracast. Amazon’s Fire TV and Fire TV stick also do Miracast. Microsoft it even selling two Miracast dongles of its own, for some reason.
Miracast is Like a Wireless HDMI Cable
HDMI allows you to connect almost any device to a TV or another external display, but HDMI requires a wired... [Read Article]
Miracast is a standard that hopes to one day banish the need for HDMI cables. Rather thanphysically connecting your laptop, smartphone, or tablet to a TV like you would with an HDMI cable, Miracast provides a wireless standard that allows devices to discover each other, connect to each other, and mirror the contents of their screen wirelessly.
Unlike protocols like Apple’s AirPlay (on the Apple TV) and Google’s Chromecast (on the Chromecast and Android TV devices), Miracast is designed to be a cross-platform standard. Check out our comparison of AirPlay, Miracast, WiDi, Chromecast, and DLNA to understand the differences between all these different protocols.
Miracast functions exclusively as a “screen mirroring” protocol. So, if you wanted to start a Netflix video on your phone and play it via Miracast, you’d have to leave your phone’s screen on the whole time. Everything on your phone’s screen would be mirrored on the TV.
Because it’s all about screen mirroring and doens’t have the “smarts” you see in protocols like AirPlay and Chromecast, which can hand-off streaming to another device and display a different interface on one device’s screen, Miracast can best be thought of like a wireless HDMI cable.
Which Operating Systems and Devices Support Miracast
Computers running Windows 8.1 and phones running Windows Phone 8.1 can stream to Miracast devices. Android phones and tablets running Android 4.2 or newer can also stream to Miracast devices. Amazon’s Fire OS is built on top of Android, so it also supports Miracast.
Linux PCs will require some sort of unsupported hack to do this, Chromebooks don’t have native Miracast support, and Apple’s Macs and iOS devices support AIrPlay and not this open standard. It’s basically Windows and Android only, for now.
As we mentioned above, the Roku 3 and Roku Streaming Stick are now Miracast-compatible. Microsoft sells two of their own Miracast receivers, named the Microsoft Screen Sharing for Lumia Phones (HD-10) and the Microsoft Wireless Display Adapter. Amazon’s Fire TV has Miracast integrated, and so does their new Fire TV Stick — a $39 device with Miracast support built in. There are also many other dedicated Miracast receivers you can buy.
In theory, Miracast should become increasingly widespread, even being integrated into TVs themselves so you can easily wirelessly stream to them.
Miracast Problem 1: It’s Only Screen Mirroring
Miracast is a great idea in theory. It should be open standard for wireless display streaming that every manufacturer can implement, allowing devices to just work with each other. It would be great to be able to walk into a hotel room and easily mirror your device’s screen on its TV, or walk into an office and wirelessly connect to a TV so you could give a presentation without messing with cables. Miracast promises to banish the HDMI cable.
In practice, even if Miracast worked perfectly, the core design would still be a problem. Banishing the HDMI cable is nice, but Miracast doesn’t have the “smarts” competing protocols offer. Both Apple’s AirPlay and Google’s Chromecast can mirror a device’s screen — yes, a Chromecast can even mirror your Windows desktop and all your running applications. However, they can also be smarter.
For example, you could open the Netflix app on your phone, locate a movie you want to watch, and tap the Chromecast button. Your phone would then tell the Chromecast to play the video, and the CHromecast would connect to the web and stream it directly. You could then set your phone down and it would go to sleep. With Miracast, your phone’s screen would have to stay powered-on and streaming the video for the entire length of the Netflix movie, draining its battery.
These protocols also allow you to display something different on your device’s screen and on your TV. So you could watch a Netflix video and view the playback controls only on your phone, so they wouldn’t get in the way on the TV. Or, you could play a video game and view only the game world on the screen, with a separate set of controls on your phone. With Miracast, you can’t have separate controls on your phone — your TV just mirrors everything on your phone’s display.
Miracast could be a good solution for replacing HDMI cables with a wireless protocol, but it’s inconvenient for many of the things people use Chromecast and AirPlay for in the living room.
Miracast Problem 2: It’s Unreliable and Often Doesn’t Work
But here’s the biggest problem with Miracast. It’s an open standard and Miracast-certified devices are supposed to communicate just fine with other Miracast-certified devices. However, they often don’t. If you look at help pages for devices like the Roku 3, you’ll often see a list of devices that have been tested to work with the receiver. This shouldn’t be necessary if it was a proper standard — you don’t need to check if your model of phone or laptop is compatible with your Wi-Fi router, after all.
More and more new devices are using Wi-Fi Direct. Wi-Fi Direct allows two devices to establish a direct, peer-to-peer Wi-Fi...[Read Article]
Time and time again, both coordinated tests and people trying to use Miracast in the real world have struggled to make it work. We tried getting Miracast working on a Roku 3 after enabling the new Screen Sharing feature and were unable to, both with a Nexus 4 running Android 4.4.4 and a Surface Pro 2 running Windows 8.1. Both are officially approved devices Roku says will work, but they all hang on a “Connecting” message before timing out without any helpful status messages.
This shouldn’t be because of a problem with our Wi-Fi network, as Miracast is supposed to useWi-Fi Direct. This means Miracast devices can even work where no Wi-Fi network is present — the devices connect directly to each other, bypassing the standard Wi-Fi network and wireless router.
MIracast is nice in theory, but it’s also just a wireless HDMI cable. In many situations, you’re often just better off plugging in an HDMI cable rather than dealing with the potential connection problems and streaming glitches.
A new generation of Miracast receivers and Miracast-capable operating systems could potentially solve these problems and turn MIracast into a standard that works well. We can only hope that will happen.
Image Credit: Sam Churchill on Flickr, John Biehler on Flickr
Monday, November 10, 2014
E N M I O P I N I O N: Comportamiento ante lo desagradable
Por: Ricardo Tribín
Acosta
Que
cosa tan sobada resulta el aprender a comportarse sin sobre reaccionar ante
la incómoda presencia de un sentimiento desagradable,
motivado muchas veces por la actitud agresiva de otra persona. Creer que no
incomodarse ante un rechazo o desprecio sea tarea fácil, es algo que bordea un
poco lo ilógico. Sin embargo que esta incomodidad persista por un buen rato,
incluso por días, meses, o años, es otra
cosa, la cual se puede evitar si conscientemente hacemos el esfuerzo de que
esto salga pronto de nuestra mente y por ello quede debidamente depositado en
el rincón de los olvidos.
La
sobre reacción inmediata cuando un insulto llega se logra eludir si mentalmente
hacemos lo posible para evitar que ello nos avasalle y conduzca a reaccionar de
manera defensiva - agresiva de inmediato, la cual en una buena cantidad de
oportunidades podrá impedirse si respondemos, no con un puño o un insulto, sino
expresando claramente el sentimiento que percibimos y a la vez demandando de la
otra parte el debido buen tratamiento y respeto que nos merecemos.
Miami,
Noviembre 8 de 2014
Tuesday, November 4, 2014
America's Big Car Comeback and the Twilight of Pure Driving (BusinessWeek)
 |
| A Kia Sportage SUV at the Paris Motor Show on Oct. 3
Americans are still crazy about cars, a love affair reaffirmed by October sales datareleased Monday morning, Nov. 3. But what if we no longer care that much about the experience of driving them?
Sure, a vocal minority is still clamoring for enjoyable rides in such vehicles asPorsches (PAH3:GR), Corvettes (GM), and Ford Motor’s (F) new Mustang. Yet the mainstream American driver seems to have a waning interest in speed, acceleration, and sharp steering. Instead, cargo space often goes at the top of the car shopping list these days, along with safety and size in general. The lure of Costco (COST), in other words, is trumping that of curvy roads.
Consider the cluster of brands that is Fiat Chrysler (FCAU). Everything in its garage that resembles a regular-size car—from the Dodge Dart to the Chrysler 200 sedan—has seen sales slump this year. All its machines that are bigger, burlier, or both—Jeeps and pickup trucks—have enjoyed a sales surge. Even the Chrysler Town & Country minivan is hot for a minivan.
The supersizing extends to the American auto industry at large. In the first nine months of the year, sales of traditional and so-called crossover SUVs were up 12.2 percent, far ahead of every other segment. The machines that excel at just shuttling a couple of people around—compact and midsize autos—suffered static sales results, and big old sedans started looking increasingly like dinosaurs.
Swooning gas prices have accelerated the trend, giving shoppers one less reason to opt for something low and light. The average price of a gallon of gasoline is now $2.98, the lowest it has been in almost four years, according to AAA.
Of course, big cars these days are a lot more fun to drive than they used to be. But those improvements have happened across the industry. A current-model minivan can corner like the average American family sedan in the 1990s, but today’s sedan, in turn, has performance stats once seen only in sports cars.
Detroit and the folks at Fiat headquarters in Turin, Italy, are likely thrilled with the fashion of increasing size. Bigger vehicles tend to cost more and command larger profit margins. And who cares what kind of cars people are buying, as long as they are, in fact, buying?
In fact, there is some evidence that Americans tend to buy simply the biggest car they can afford. SUV and truck-buying last peaked in 2005, when the economy was humming along nicely.
Bloomberg Intelligence Analyst Kevin Tynan still thinks this should be a little disconcerting to car executives. “All of this tells me we don’t want to drive any more,” he wrote in an e-mail this morning. “People would happily sit in the passenger seat of a mobile egg and let the vehicle drive itself while they play Angry Birds.”
Google is already hard at work on that self-driving machine, and carmakers would do well to catch up. Look for it in 2018: the all-new Cadillac Escalade Egg.
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Monday, November 3, 2014
E N M I O P I N I O N: Por: Ricardo Tribín Acosta
Para qué gastar energía
con el odio?
El
odio es quizás uno de los venenos más efectivos y poderosos que existen para
acabar con las personas solo que quienes lo experimentan a quien más daño les
hace es hacia ellos mismos puesto que se
carga con ese lastre a las espaldas sin poderlo quitar de encima y la verdad es
que este pesa mucho más de lo que se imagina.
Como
dice el principio físico “La energía no se crea ni se destruye, simplemente se
transforma”, lo cual lleva al corolario de que, si esta se posee, para que
malgastarla en algo tan primitivo como el odio. La rabia, y la ira existen y es
normal sentirlas. El transformarlas sin embargo en emociones nocivas de odio,
resentimiento, o venganza, no vale la pena, a menos que al individuo le guste
vivir continuamente con el sufrimiento que tal hiel encarna.
El
perdón es la palabra mágica para solucionar este problema, el cual empieza con
no desearle mal, ni odiar, a quien nos ha hecho daño, así este sea real o
imaginario, proceso que arranca incluso por perdonarnos a nosotros mismos por
lo que está pasando en nuestro interior, para posteriormente proceder a pedir
mental o verbalmente por el bien del otro. Esto generará una gran sanación y
alivio interiores los cuales son para uno como un talismán de paz sin que ello se oponga a que si la
ofensa trae consigo otras consecuencias derivadas, por ejemplo de tipo legal o
económico, o más, el proceso sea detenido puesto que a la justicia divina y
humana hay que darle todo el espacio para que actué en los distintos aspectos y
escenarios de la vida.
Miami,
Noviembre 1 de 2014
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