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Monthly Archives: April 2012

Windows Phone OS Vs. Android OS

Windows operating system is the undisputed king in the world of computers, it is the kingpin. But when it comes to the mobile phones the scenario is not that bright. Windows has to make space for itself in the presence of two giants: iOS and Android.

Android vs Windows

The Windows Phone OS is a relatively new player in the world of mobile handsets. It is approximately two years old in the market, and as far as the mass use of the OS is concerned, it appeared at the Mobile World Congress 2011 with the Nokia handsets, the Lumia series. And with the Nokia Lumia 800 and Nokia Lumia 710 the Windows Phone OS was supposed to take off, but somehow it did not respond accordingly to the high anticipation of the tech world. Let’s find out how and why it lags behind the giant Android.

First and the foremost reason is like the Android, Windows does not enjoy the flurry of vendors who give the users a wide range of choice, all the way from 3000 bucks to the 40000 upper crust. Windows phones are only for the thick walleted folks. And it is simple; number of handsets sold is directly proportional to the number of operating systems in the market.

Second and equally important thing is the Windows OS does not come up with something new all the time, which the users demand at the time of purchasing a handset. Yes, it has the Metro UI but that is a complex thing, not meant for the common place people. On the other hand Android comes up with a new app every now and again (no matter useful for the users or not) to woo the purchaser.

Android vs Windows7

One more thing that needs to be emphasized is that the companies like Nokia, HTC, and even Samsung offer only two or three handsets that run Windows Phone OS that not just cramps the users for choice but they are not stylish and trendy handsets. If we look at Samsung, we find that the Android handsets are far better looking than the Windows phones.

The foresight that Google invests in the Android is commendable, after the super success of the ICS 4.0 is already planning to unveil the Android 5.0 whereas the Windows OS is still holding on to the 7.5 Mango.

And the story is the same for the Windows based tablets. I would like to say that the road is far more difficult here than in the handset sphere where the monster called Apple is as well established as God in heaven. Though, there is some hope for the Windows after the release of the Windows 8, but the hope is now looking like a thin shadow of something that is not confident of its own success. Let us see what happens.

Folks, you might like to read:

Wireless Charging: Pros and Cons

Bluetooth with A2DP Technology

Active Noise Cancellation Technology

Defining LED Display

 
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Posted by on April 16, 2012 in Mobile-Technologies

 

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Wireless Charging: Pros and Cons

We are living in a world of wireless technologies. When smartphones, tablets, and laptops have become an integral part of most of the people living in this world, have we got freedom completely from the hassles of cords and wires? Still the answer would be “no”. I’m sure; you all will be having a USB cable or charger in our bag to charge the mobile phones or laptops. With the advent of wireless charging- a technology, which is not commonly adopted, life of those people who like to work on the move is slowly revolutionizing for the better.

What is wireless charging?

There are two types of wireless charging: inductive and conductive charging. The inductive charging technique involves an electromagnetic field to transfer charge across a gap and into the device’s battery. The requisite for the inductive charging is an induction coil, which is capable of receiving the wireless energy. On the other side of the table, the conductive charging functions on the direct electrical contact between the power source and the battery.

Inductive Charging

The conductive charging pad contains a conductive panel that gets connected to the similar conductive material on the users mobile device’s aftermarket backs. Big players of the field are: Duracel, Powermat USA, RadioShack. But the inability of the conductive charging pads to get set on the car dashboard and the tray tables of the aeroplanes might prove to be a big bottleneck fot the users.

The inductive charging seems to be scoring over the conductive charging these days. Samsung, LG, RIM, and Motorola are all part of the Wireless Power Consortium, and they all back the inductive charging standard. Since the inductive charging does not need the conductive surface, it allows itself to be mingled with or under any kind of materials. The Wireless Power Consortium takes the inductive standard of charging as the future of wireless charging.

Conductive Charging

The main bottleneck of the wireless charging is the low performance of the batteries and extra heating in comparison with the conventional way of charging. One big disadvantage is the expensiveness of the wireless chargers at the present moment, but that will be taken care of as the demand grows.

This video demonstrates the functioning of the Wireless Charging.

You might also like to read:

Resistive vs Capacitive Touchscreen

Bluetooth with A2DP Technology

Active Noise Cancellation Technology

 
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Posted by on April 9, 2012 in New Age Technology

 

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Resistive vs Capacitive Touchscreen

This article will help you in understanding the basic differences between Resistive & Capacitive touchscreen.

Resistive Touchscreen

A resistive touchscreen comprises of several layers, out of which the flexible plastic and glass layers are two important electrically resistive layers. The front surface of resistive touchscreen panel is a scratch-resistant plastic with coating of a conductive material (mostly Indium Tin Oxide, ITO), printed underside.

The second important layer is either made of glass or hard plastic and is also coated with ITO.

Both the layers face each other and are separated with a thin gap in between. An electrical resistance is created between both the layers in such a way that charge runs from top to bottom in one layer and side-to-side in another.

When a finger or stylus tip presses down on the outer surface, both the ITO films meet. It is the measure of the resistance of both the layers at point of contact, which leads to get an accurate measurement of the touch position. The accuracy also relies on the evenness of the coating of ITO on both the layers.

Advantages of Resistive Touchscreen

  • Low production cost
  • High resistance to dust and water
  • Best used with a finger, gloved hand or stylus
  • Best suited for handwriting recognition

Disadvantages of Resistive Touchscreen

  • Not too sensitive, you have to press down harder
  • Poor contrast because of having additional reflections from extra layer of material placed over the screen
  • Does not support multi-touch

Phones with Resisitive Touchscreen

Spice Mi-270, Nokia C2-02, Samsung Star Duos, Spice FLO, LG P520, Nokia C5-05, LG Cookie Joy, Samsung Champ Duos, Nokia C2-02

Capacitive touchscreen

A capacitive touchscreen also consists of two spaced layers of glass, which are coated with conductor such as Indium Tin Oxide (ITO). Human body is an electrical charge conductor. When a finger touches the glass of the capacitive surface, it changes the local electrostatic field. The system continuously monitors the movement of each tiny capacitor to find out the exact area where the finger had touched the screen.

Advantages of Capacitive Touchscreen

  • Because capacitive touchscreen has glass layer instead of plastic, it looks brighter and sharper
  • Highly touch sensititive and doesn’t need a stylus
  • Supports multi-touch

Disadvantages of Capacitive Touchscreen

  • Because the technology is dependent on the conductive nature of human body, it doesn’t work if the user is wearing gloves
  • Because of having a complex structure, these are quite expensive
  • Glass is more prone to breaking

Phones with Capacitive Touchscreen

HTC Incredible S, Apple iPhone 4S, Spice Mi-310, LG Optimus Black, HTC Sensation, HTC Explorer, Samsung Omnia W, Samsung Galaxy Ace Plus, Samsung Galaxy Note, Samsung Galaxy SII, Nokia Lumia 800

 
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Posted by on April 2, 2012 in Uncategorized