The mobile phones have become such a widespread phenomena in the present times that it is very hard to imagine a life without them. So, it is likely to have an influence over the all age groups. The children have become much affected by this technology. And there have been widespread awareness programs that have been carried out in order to make the users acquainted with the ill effect of mobile phones and its negative effects especially on the kids. It is suggested that the kids below eight should not be allowed to use mobile phones as it would lead to various health hazards.
The study indicates that children who use mobile phones extensively are prone to have non-malignant tumours in the ear and brain and another study states that it can bring changes in cognitive functions. This has brought a bad name to the mobile phone companies and made them react furiously to this news item. This is because the teenagers are known to be the target clients for any mobile phone manufacturing and they form the major clients who download a lot of videos, games and other stuff. However there is no proof to justify the ill effects of mobile phones, but the emphasis on the precautionary measures of mobile phones should be there.
There have always been talk about some health hazards in the form of blood pressure, brain function and cancer have always been a moot point between the mobile phone manufacturers and mobile phone users. However these effects are known to be the long term effects and there is absolutely no short term effect of this technology. So, the bottom line is that children should be refrained from using mobile phones at an extensive basis as it would adversely effect their nervous system in a bad way!
Phones from the past few years have been hallmarks along the slow path of mobile evolution since the first "brick" was released in 1983. A tremendous leap occurred in this timeline when the Apple iPhone came out in June 2007. The Apple iPhone is the first of it's kind to incorporate multi-touch technology. Multi-touch is a technology where the device is able to track the actions of more than one finger at once on a touchscreen.
The original and 3G iPhones are both equipped with quad band GSM/EDGE, but the newer 3G model also comes with tri-band HSDPA/UMTS at 850/1900/2100. The 3G model allows for faster data transfer for a more seamless web browsing experience and better networking. Wi-Fi is also standard on the original and 3G models, and the device supports Bluetooth 2.0 + EDR. Improving on the first generation's cell phone tower and Wi-Fi triangulation in the Maps application, the 3G model included A-GPS for very precise navigation.
The iPhone is designed as a slab device, where almost the entire face of the phone is one screen. This screen is spectacular, not only 3.5 inches, which is plenty of space for viewing movies, pictures, and web pages, but it has a pixel density of 160 ppi (pixels per inch). Below the screen is a single button, the "Home" button, which will return the user to the main screen with one push. The little touches aren't neglected in this device, such as the inclusion of an ambient light sensor to adjust the screen brightness automatically. There is also a proximity sensor so when the phone is brought up to the face, the back light is turned off, and accidental inputs are neglected. On the back, a 2.0 megapixel camera is integrated in the upper left corner.
To interact with the device, the multi-touch functionality allows the user to "flick" pages or pictures left/right with a quick dragging motion. Zooming in/out of photos or websites involves placing two fingers around the desired location, then either spreading them apart or closer together in a "pinching" gesture. The iPhone also accepts physical orientation sensing via a 3-axis accelerometer that detects the phone in portrait or landscape mode, allowing for wide screen videos, "Cover Flow" in the music interface, and wide screen web browsing.
To enable all of these wonderful features, the iPhone runs the full, complete, original OS X operating system, just with the unneeded drivers and code stripped out. This supports the phone with the tried and tested Unix-based architecture and extensive 3rd party application support via the SDK. The iPhone originally shipped with calendar, notes, YouTube, photo, camera, weather, stock, calculator, and map applications. Apple has added more applications, including the iTunes Wi-Fi music store, custom ringtones through iTunes, and an improved Google Maps Application. With the 2.0 OS, much more capability was added to the phone, including enterprise support, geotagging, and the App Store. The App Store allows users to download free or paid native applications on the go that enable instant messaging, Twitter, and Facebook support, to name a few.
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