Windows 10

Windows 10

GoTenna

The $300 GoTenna turns your smartphone into a CB radio, lets you send messages when you have no cell signal

If you’ve ever had a cell phone, you know how frustrating it can be when your network fails. Areas with little to no signal can be absolutely infuriating, and overcrowded events can be just as bad. To sidestep this problem, the folks at GoTenna have developed their own ad-hoc network for sending messages. It’s an incredible concept, but with an asking price higher than most smartphones, there’s no way that this implementation is going to take off anytime soon.

The GoTenna is essentially a small, low-power (2 watts) radio transceiver. It’s powered by a lithium-ion battery, and it connects to your smartphone or tablet via Bluetooth. The company behind GoTenna is rather vague about the technical specifications of the device, but given the max claimed range (up to 50 miles), it probably transmits on a very low frequency (and probably has very low max bandwidth). GoTenna creates an ad-hoc, encrypted network between any other GoTennas in range. It’s kind of like a smartphone equivalent of a CB radio.

You can connect the GoTenna to any iOS or Android device via Bluetooth. After that, all you have to do is download the GoTenna app and fire off a message to anyone else who might be in range. Depending on your elevation and environment, the signal can travel upwards of 50 miles. By default, only your intended recipient will be able to read your message, but a “shout” feature allows messaging any GoTenna user within range. It doesn’t use cell towers or WiFi at all, so it’ll work even if all other forms of communication are unavailable.

In the video embedded above, the GoTenna team lays out a number of use cases for this device. People out in the boonies without cell signal and people at crowded events are the target demographic here, but it does require that everyone buys into the GoTenna platform. If you’re the only one with this radio in your pocket, it’s not going to do you a lick of good.

Currently, the GoTenna is being offered for pre-order at a cost of $150 per pair. Once enough units are sold to fund the initial production run, the price will jump up to $300 per pair. I’m sure that it’s quite expensive to get this handy gadget produced, but that price point just isn’t low enough for mainstream success. Only the most hardcore hikers and gadget enthusiasts will be willing to drop $300 on this device. It’s a clever idea, but its limited utility doesn’t justify that kind of expense for most people. [Read: How to build your own GPS receiver.]

Frankly, this kind of tech would probably be a lot better if it was built into smartphones. An ad-hoc or mesh network for messaging sounds incredibly useful, but it will take a company like Apple or Google to bring that concept to the mainstream. If this functionality was just baked into every iPhone or Galaxy S, it would make a lot more sense for consumers. As it stands, this expensive smartphone accessory seems to be little more than a novel curiosity.

Virus Can Infect Wi-Fi Networks

The researchers have recently created a Wi-Fi virus that can spread through populated areas like the common cold can spread between humans. The experts designed and simulated an attack by a virus dubbed “Chameleon”. It turned out that the virus spread quickly between homes and businesses, but couldn’t avoid detection and identify the points at which Wi-Fi access is least protected by encryption and passwords.

Although this Wi-Fi attack was only a computer simulation, the researchers found that their virus behaved just like an airborne virus. They believe that it may have the following explanation: since areas that are more densely populated have more APs in closer proximity to each other, the Chameleon propagated more quickly, especially across networks connectable within a 10-50 meter distance.

The researchers pointed out that when “Chameleon” attacked an AP the virus didn’t affect how it worked, but could collect and report the credentials of all other Wi-Fi users connected to it. Chameleon then used this information to connect to and infect other users. If an AP was encrypted and password protected, Chameleon just moved on to find the APs that weren’t strongly protected. Of course, coffee shops and airports turned out to be hotbeds of infection.

The researchers admitted it was earlier assumed that it‘s impossible to develop a virus able to attack Wi-Fi networks. However, this experiment showed that it’s actually possible and such virus, if created in real life, will spread very quickly and harm lots of Internet users.

Sony sells PC business, cuts 5,000 jobs

Sony announced a series of major changes Thursday and warned of a loss of $1 billion this year as it struggles to get a turnaround plan back on track.

Sony said it was selling its loss-making Vaio PC unit, spinning out its television business and cutting 5,000 jobs.

The Japanese electronics group said it expects to lose 110 billion yen ($1.1 billion) for the year ending March 31. The forecast was a surprise, and a sharp downgrade from its previous estimate of 30 billion yen profit.

Sony (SNE) has been dogged for years by poor results in its legacy consumer electronics, PC and television businesses, which face increased global competition and low margins.

After a brief return to profit last year, things are now so bad that Moody's has decided that Sony is no longer worthy of an investment-grade credit rating. The agency downgraded Sony to junk last month, warning that profitability would likely remain "weak and volatile." Fitch made the same move in late 2012.

Related story: Sony downgraded to 'junk'

Sony said Thursday that private equity group Japan Industrial Partners will buy the Vaio PC business. While no price was disclosed, Sony shares had risen throughout the day on reports that a deal was near.

After a banner year in 2013, the stock has dropped 11% so far this year -- a move that has largely mirrored the Nikkei.

The company also detailed a plan to spin out its TV division by July. Operating the business as a subsidiary should allow it to turn a profit during fiscal year 2014, Sony said.

The changes announced Thursday will cost 90 billion yen and reflect an admission that the company's turnaround strategy under CEO Kazuo Hirai was falling short of expectations.

Even as the company restructured and cut costs, Hirai had resisted any reduction in Sony's wide-ranging product line. Instead, Sony executives have tried to make improvements in mobile devices and games.

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Google purchased Nest Labs for $ 3.2 Billion

Google announced a new household products according to manufacturer 'buy' Nest Labs has taken. Nest Labs was started in 2010, and it is very popular because of their modern equipment. Co. thermostat tracks the controller, carbon mono oxide smoke equipment is selling these devices it is important that they be controlled via Android and iPhone Applications can be.

Despite selling the Nest Google will continue to work with their existing staff. Google with Nest Lab has yet to announce his future plans., But now it seems that Google Consumer Digital Technology is also increasing.

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* VIRUS - Vital Information Resource
UnderSeized.
* 3G -3rd Generation.
* GSM - Global System for Mobile
Communication.
* CDMA - Code Divison Multiple
Access.
* UMTS - Universal
MobileTelecommunication System.
* SIM - Subscriber Identity Module .
* AVI = Audio Video Interleave
* RTS = Real Time Streaming
* SIS = Symbian OS Installer File
* AMR = Adaptive Multi-Rate Codec
* JAD = Java Application Descriptor
* JAR = Java Archive
* JAD = Java Application Descriptor
* 3GPP = 3rd Generation Partnership
Project
* 3GP = 3rd Generation Project
* MP3 = MPEG player lll
* MP4 = MPEG-4 video file
*AAC = Advanced Audio Coding
* GIF= Graphic Interchangeable
Format
* JPEG = Joint Photographic Expert
Group
* BMP = Bitmap
* SWF = Shock Wave Flash
* WMV = Windows Media Video
* WMA = Windows Media Audio
* WAV = Waveform Audio
* PNG = Portable Network Graphics
* DOC = Document (MicrosoftCorpo
ration)
* PDF = Portable Document Format
* M3G = Mobile 3D Graphics
* M4A = MPEG-4 Audio File
* NTH = Nokia Theme (series 40)
* THM = Themes (Sony Ericsson)
* MMF = Synthetic Music Mobile
Application File
* NRT = Nokia Ringtone
* XMF = Extensible Music File
* WBMP = Wireless Bitmap Image
* DVX = DivX Video
* HTML = Hyper Text Markup
Language
* WML = Wireless Markup Language
* CD -Compact Disk.
* DVD - Digital Versatile Disk.
*CRT - Cathode Ray Tube.
* DAT - Digital Audio Tape.
* DOS - Disk Operating System.
* GUI -Graphical User Interface.
* HTTP - Hyper Text Transfer
Protocol.
* IP - Internet Protocol.
* ISP - Internet Service Provider.
* TCP - Transmission Control
Protocol.
* UPS - Uninterruptible Power
Supply.
* HSDPA - High Speed Downlink
PacketAccess.
* EDGE - Enhanced Data Rate for
GSM[GlobalSystem for Mobile
Communication] Evolution.
* VHF - Very High Frequency.
* UHF - Ultra High Frequency.
* GPRS - General PacketRadio
Service.
* WAP - Wireless ApplicationProt
ocol.
* TCP - Transmission ControlProtocol
.
* ARPANET - Advanced
ResearchProject Agency Network.
* IBM - International Business
Machines.
* HP - Hewlett Packard.
*AM/FM - Amplitude/ Frequency
Modulation.
* WLAN - Wireless Local Area
Network

Bill Gates Says Control-Alt-Delete was a mistake

Bill Gates Says Ctrl+Alt+Delete is IBM's Fault

Ctrl + Alt + Del. You've probably done it hundreds of times over the years you've been using computers. But did you know that Bill Gates never wanted that sequence to exist in the first place? Apparently, Gates wanted the function of Ctrl + Alt + Delete to be taken care of with a single button. Unfortunately, IBM's keyboard design didn't allow for it.

"It was a mistake," the Verge quotes Gates as saying during an interview at a Harvard fundraising campaign. "We could have had a single button, but the guy who did the IBM keyboard design didn't wanna give us our single button."

Despite Gates' admission that he sees the combination as a mistake, it still exists on Windows machines today. The engineer that came up with it is David Bradley, who worked as a designer on early IBM computers. According to CNN, Bradley says they didn't mean for it to be available outside of development.

"I originally intended for it to be what we would now call an Easter egg -- just something we were using in development and it wouldn't be available elsewhere," Bradley said in 2011. "But then (software publishers) found out about it. They were trying to figure out how to tell somebody to start up one of their programs, and they had the answer. Just put the diskette in, hit Control-Alt-Delete, and by magic your program starts."

Bill Gates left Microsoft Gates stepped down from his position as CEO of Microsoft in January of 2000 and instead filled the role of 'Chief Software Architect.' In 2008, he stopped working full-time at Microsoft to focus more on his philanthropy.

September 26, 2013 

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Operating System Concepts

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WiTrack (Through-wall 3D Tracking using body Radio Reflections)

Through-Wall 3D Tracking Using Body Radio Reflections

WiTrack is a device that tracks the 3D motion of a user from the radio signals reflected off her body. It works even if the person is occluded from the WiTrack device or in a different room. WiTrack does not require the user to carry any wireless device, yet its accuracy exceeds current RF localization systems, which require the user to hold a transceiver. It transmits wireless signals whose power is 100 times smaller than Wi-Fi and 1000 times smaller than cellphone transmissions.

WiTrack localizes the center of a human body to within 10 to 13 cm in the x and y dimensions (about the size of an adult hand), and 21 cm in the z dimension. It also provides coarse tracking of body parts, identifying the direction of a pointing hand with a median of 11.2 degrees. It can also detect falls with 96.9% accuracy. WiTrack can be incorporated into consumer electronics and has a wide set of applications.

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Gaming in the Entire Home WiTrack enables games in which users move around freely in the entire home. Unlike today's gaming interfaces (like Xbox Kinect), it does not require a player stand right in front of it to play a game. It can stalk him as he runs down hallways or hides behind furniture and walls from video game enemies.

Elderly Monitoring & Fall Detection Falls are the leading cause of both fatal and nonfatal injuries among adults aged 65 and over. Current fall detection systems require the user to wear sensors or place cameras in her home, which invade her privacy. WiTrack can detect falls with 96.9% accuracy, even through walls and simply by using reflections off a person's body.

Controlling Household Appliances WiTrack allows a user to control a household appliance, like turning a light on or off, by simply pointing his or her hand in its direction - even if it is in a completely different room.