Special Tips About How to Protect Your Cell Phones

In company with plenty of ways to make people healthy, comfortable and joyful, the modern society has brought with it the busy life speed while kept most of the people communicating on the move.

At present, maybe most of us have owned our portable media players, fashionable smart phones, eye-catching personal computers and other interesting electronic gadgets in order to keep ourselves joyful and prepared. Now that we have purchased them, the only thing we need to do is to keep them performing properly, and to make sure that no matter what we put them through, they will still be regarded as valuable gadgets.

Although the majority of electronic gadgets are produced with the features such as shock-proof, there is still a certain amount of mishandling which plastic, glass and metals may suffer. For this reason, sometimes you have to protect your cell phones and media players just a little bit more especially with your screen protectors and various styles of cases.

At the present time, people are able to find protective accessories for almost every electronic device, from iPhone screen protectors, to Blackberry skins, which to some extent, help us prevent our gadgets from being scratched.

Another thing I want to say about our devices is that energy consumption on these gadgets is still growing even with development in battery technology, with every passing year. Luckily, recently a lot of solutions have come into being to help us in batteries charging while on the go, such as mini portable solar chargers, car chargers, battery docks, and even wireless battery boosters.

How to Make an iPod Dock

Table Connect for iPhone

Keep Your Phone Running With A Great Phone Battery

If there is one tech gadget that could be considered "most popular" over the past 20 years, one would have to say that the cell phone is definitely in the running. The need for constant availability has made these a must-have accessory for people of all ages. Almost everyone has a phone these days. Of course, cell phones are useless without phone batteries, and these batteries have a lot more going on than you might think!

When it comes to cell phone batteries, there is no "one size fits all". In fact, different brands have their own batteries, and different models of phones within that brand require different sizes of phone batteries. The materials used to make these batteries can differ from phone to phone as well. Who would have thought that something like a phone battery could be so diverse or interesting!

The differences in cell phone batteries can amount to a wide variety of things when it comes to using your handset or accessories for blackberry. For example, some batteries simply have a longer overall life than other batteries. Different batteries hold charges for different lengths of time. It is for these reasons that it is always a good idea to keep a spare battery and charger on hand. After all, you don't want to be without your number one accessory for any length of time!

When you go to purchase cell phone batteries you should visit your cellular carrier's store. You are sure to find the battery you are looking for here, and if they don't have it in stock, they can order it for you. You will have to pay full retail price for your phone batteries here, but you are also guaranteed to get a quality product and no hassle when it comes to returns or exchanges.

Another option is to look for discount cell phone batteries over the Internet. Here, you can find some really great deals, paying much less than you would in the store, sometimes 50-70% off! They usually have many different makes and models to choose from and you can shop right from your house.

Be warned though, Internet retailers may not guarantee their products. Plus, if you happen to have an issue, returning or replacing the battery or getting your money back can be a much more difficult and drawn out process. It is suggested that you deal with a website that you can trust, even if the price isn't the lowest.

You should also plan ahead when buying cell phone batteries. In other words, buy them before you are going to need them. Not only will this allow you to be prepared in an emergency, but it will also give you time to look around and get the best price possible. Plus, you won't be rushed and at risk of not being able to find a battery when the time comes to use it.

Cell phone batteries are a necessity when it comes to keeping your phone connected. Having a spare is a good idea in case of emergencies. However, if you care for your phone and battery as suggested by the manufacturer, your phone should have a long and happy life.

Article Source: http://EzineArticles.com/6501812

The Top iPhone Apps - What's the Secret of Their Success?

Earlier this year, Apple released its list of top iPhone apps at the one billion download mark. Downloads just hit two billion, making Apple's "All-Time" Top Apps label even sillier than it was at the time -- but that aside, it's a very interesting list and there are a lot of good lessons to be learned from it.

We know that developers of some top apps have earned from $350,000 (Pocket God) to $800,000 (iShoot). Some have probably earned much more. It's difficult to estimate income even if the number of downloads is known, because app pricing bounces around a lot. Koi Pond has been downloaded about 900,000 times and Enigmo over 800,000. Even at, say, a dollar a time, that's very good money.

How to get access to this giant cash cow? Here are some tips, based on our analysis of Apple's twenty top paid apps:

Get in early

The iPhone 3G came out in July 2008. Almost half of the top apps had been released by August. The rest were all out by the end of 2008, except one that came out in January 2009.

Timing is everything. Of course, some of this is just a matter of physical reality -- if you sell 5,000 apps a day for 100 days, that's 500,000 sales; if you only have 5 days, you can only reach 25,000. But there's more to it than that. There are simply so many apps now (over 50,000) that it's very difficult to be seen. Apps that came out early, and gained traction, had a huge advantage over competitors, and that kind of advantage is often maintained long-term.

Entertain the masses

If you want to save the planet, enlighten humanity or improve people's health, you'll get your reward in heaven, but you won't have a winning iPhone app. Every one of the top paid apps is a toy of some kind. Fourteen are in the Games category, 4 Entertainment and 2 Music.

Interestingly, this entertainment is generally not mindless. Most of the games are complex, requiring skill and concentration, and quite a few have many permutations or constant updates (Pocket God). Complex games include Pocket God, Fieldrunners, Texas Hold'em Poker and Monopoly. The simpler games, like the memory matching game Bejeweled 2 or the skateboard app Touchgrind, still require skill and concentration.

Only a few, like Koi Pond, require little mental effort, but even this one has many options and constant movement. Nearly all the apps have great graphics and plenty of movement.

There were only 2 entirely silly and pointless apps, namely the simulated beer app, iBeer, and the self-explanatory iFart Mobile.

There's a surprise in every package

Ocarina, the ancient flute simulation, is a real surprise. Who would have thought an obscure musical instrument would have ranked so high? The app developers are just as interesting -- a high-flying crowd of musicians and computer scientists from places like Stanford and Princeton. Could it be that there is still a place for real quality and innovation on the Internet? Happy thought.

Develop for the device

Using the accelerometer seems to increase an app's chances of success. Most of the top paid apps are accelerometer-intensive, or use other novel or unique iPhone features.

The message here is that successful app developers take advantage of the device's novel or unique functionality. The iPhone is mobile, it has a touchscreen, it has an accelerometer. Develop for the device! Apps that act as though they're on a regular desktop computer are likely to be less successful.

Have the right background

It really helps to be an experienced software developer, preferably with a background in Internet games. Most of the companies and individuals who distinguished themselves have a long track record in this market. In some cases, it was just a matter of taking an existing business model and making the logical leap to iPhone apps. In others, the app was the start of the business and in some cases it could also be the end of the road.

Don't be a one-hit wonder

Four of the top paid apps were orphans or close, with only 1 to 2 apps per developer. Far more common, though, were developers with stables of 3 to 10 apps. Only 1 developer had more than 10 apps. Successful developers leveraged existing products and apps, building on one to create others - but adapting an app to make very similar spin-offs (iBeer, iMilk, iSoda, Magic Wallet), while smart, seems a little too opportunistic. The app developers that have developed several unique, compelling games are far more likely to have multiple successes.

In fact, 3 companies (Freeverse, Pangea Software, Electronic Arts) each had 2 top-twenty apps. All 3 are big or biggish companies, implying that it takes significant resources to product a winning app.

Don't be too hung up on price

The de facto standard iPhone app price is $0.99. This level was quickly established in the App Store as the place where most buyers seemed happy. Possibly it's due to the standard cost of iTunes music.

In any case, most of the winning apps command better prices, with 13 of the 20 priced from $1.99 up, and 4 of them commanding the majestic (for iPhone apps) price of $4.99 on the day we did the analysis.

You don't need Lite or Free teaser apps

Here's a very interesting factoid. Only 2 of the top twenty apps (iHunt and iShoot) have a free or lite version, at least at the time of writing. Both developers are individuals rather than companies, and it's interesting that the bigger outfits don't see the need for teasers. The implication is that if it's worth buying, people will pay for it.

The freebie iShoot Lite had 2.4 million downloads in January, and there were 320,000 paid downloads. So it's quite possible that the free app drove sales of the paid app -- but it's also possible that there might have been more paid downloads had the free app not been available.

You don't have to be a huge company (although it helps)

Could it be that success in iPhone apps depends on having massive, sophisticated, expensive marketing strategies? Not necessarily.

There's no question that it helps to be Internet savvy and have deep pockets, but the winning app developers were an encouraging mix of sizes and types.

Four of the 17 developers are big multinational companies -- Apple itself (Texas Hold'em), Electronic Arts (TETRIS, Monopoly), Activision (Crash Bandicoot) and SEGA (Super Monkey Ball). Then there are a bunch of mid-sized companies and, happily, also 7 small groups and 4 individuals.

iFart Mobile is an interesting story. It was developed by an Internet marketing guru who understood how to work the system and get incredible publicity by producing a pointless app that he must have known would easily generate controversy, laughter and interest.

The Internet mythology of smart guys working evenings or weekends, or out of the garage, and hitting the jackpot, lives on. The little guys in this group are John Moffett (iHunt), Ethan Nicholas (iShoot) and, so far as we can tell, Shinya Kasatani (Pocket Guitar). These guys might not be the next Steve Jobs, but they have been successful to the tune of hundreds of thousands of dollars, just a dollar or two at a time. Pretty impressive.

Controversy is useful, but by no means essential

iFart Mobile in particular, and to a lesser extent iBeer and iHunt, are quite controversial and almost certainly gained a lot of publicity because of this. You can almost view the controversy in the ratings -- while most of the 20 top apps have a dominant rating of 5 stars, gradually dropping down, these 3 controversial apps had large numbers of ratings for both 5 stars and 1 star. So this distribution of rating might not hurt an app, and might show a developer that the app has a lot of potential to create buzz.

The other top apps did not seem designed to attract controversy and this obviously didn't hurt them.

Five-star ratings are neither essential nor possible for top apps

You can't please all of the people all of the time -- so the more ratings there are, the lower the odds of a 5 or even 4.5 star average. None of the top apps had 5 stars and most had 3 to 4 stars. iHunt had only 2.5 stars, because a lot of people hated it.

It takes a LOT of downloads to develop a lot of ratings

Although probably millions of people collectively downloaded the 20 top apps, the highest number of ratings (Fieldrunners) was 1,479 and the lowest (Pocket God) was 226. Most users don't provide ratings, and even fewer write reviews.

Given that people like to be part of a happy herd, it's almost certain that savvy developers actively promote positive ratings and reviews.

The theme doesn't have to be classic or familiar

Classics like Texas Hold'em, Monopoly and TETRIS (all developed by public companies) did feature in the 20 top apps. The other apps were sometimes familiar, sometimes not, but none of them really adapted a big-name, well-known game. Pocket Guitar, of course, used a well-loved instrument with great success. But to balance that, Ocarina catapulted an obscure ancient flute to fame.

Quality counts

There are many, many, many iPhone games with themes not dissimilar to the top games. There are dozens of guitar simulations. There are 5 other iFart apps. So just having a good idea isn't enough.

The iFart apps are an interesting illustration. Almost uniformly, they have not developed a following, and the comments are mainly negative -- not because they're vulgar and silly, but because they're not very well executed and users don't like them.

Now you know some of the secrets. Happy programming!

Findanapp is a simple, searchable database of all the iPhone apps we can lay our hands on. Our site has details of over 59,690 apps, and counting.

Article Source: http://EzineArticles.com/3044094

Mobile Apps Are the Next Big Thing!

Working is no longer bound to the cubicle you plastered with pictures of your cat. Smart phones that are already carried by professionals, like the iPhone and Android phones, have moved all the files, reports, tasks, and cat pictures of your cubicle right to your pocket! App development has become quite the business, with apps being fashioned for every possible product, concept, and function. Some iPhone apps are more relevant to business, while some apps are just for amusement.

Mobile apps are definitely converting how people utilize their phones. Smart phones have become cardinal in attending to our computing and communications requirements and have made the web an indispensable part of our work lives, social lives, and home lives. So, the entire world of programming is constantly evolving. Programming is now directed towards people and their interactions with the world around them and with their social interactions. iPhone application development is a extremely lucrative industry that wasn't around ten years ago. In today's world apps (including and especially expense tracking apps) are remarkably important in the world of business.

The iPhone is one of the most actively expanding platforms today, and anyone can see why! iPhone development empowers people to have the whole internet right at their fingertips at all times. The quick iPhone application developer skillfully molds this platform and does astounding things with it, and if your company isn't taking advantage of this advancing shift in technology, you're skipping out on a world of convenience and efficiency. Plus, apps are so well known that it's safe to assume that even if you aren't taking advantage of apps, your competitors are. Is your business really utilizing these neat new mobile platforms? If the answer to that question is "no," some of the first apps you should explore are expense tracking apps. Easy to use, inexpensive, and handy, these apps control your business expenses so that you don't spend too much time on paperwork. Expense reporting apps are a effortless way to save time. Mobile platform development is the next big thing in business computing, and you totally don't want to get left behind! Working is no longer bound to the cubicle you plastered with pictures of your cat. Smart phones that are already carried by professionals, like the iPhone and Android phones, have moved all the files, reports, tasks, and cat pictures of your cubicle right to your pocket!

Article Source: http://EzineArticles.com/6501173

iPhone Application Development - A Booming Application Development Field

The highly popular multimedia iPhone is an original product of Apple Inc., it brought revolution in the zone of touch screen mobiles. Being a fully touch phone, integrated camera with many more features to offer like media player similar to that of ipod, more memory storage and internet browsing. People went fascinated over this stunningly sleek touch mobile for its unique yet simple and attractive design, the wide display and excellent features. Apple Inc. CEO Steve Jobs launched the iPhone in a media conference on 9th January, 2007. Apple Inc. launched the iPhone in collaboration with AT&T mobile.

The iPhone received startling appreciative response from public. The day it was made available, people stayed out all night waiting for the shops to open in order to buy this smart-phone. 270,000 iPhone units were sold in first 30 hours and after it was available in the West parts of the world, 6.1 million units were sold within one year and three months. Maybe Apple had already predicted the success of their product and thus they announced that their new product would support also third party applications and software. This second product launched by Apple enabled the feature of supporting third party software,that was - the Apple iPhone 3G, unveiled on 11th July, 2008, undoubtedly Apple's another successful device.

Till today the sales of iPhones has reached to a whopping total of 21.4 million. It's popularity had lead to the development of third party iPhone applications, creating a huge market for it, full of profit. The number of iPhone mobile developers had to pay the Apple developer connection membership fee for letting the millions of people to download their iPhone applications legally. Mobile Application developers were allowed to decide any amount of price of their applications, of which 70% share would be theirs and the remaining 30% would be that of Apple's.

Slowly and gradually mobile website developers entered this field and staring creating iPhone enabled applications and websites too. Companies would also hire iPhone application developers seeing the demand in market for iPhone applications. The sales of iPhone programs raised to a billion and increasing day by day, with the developers earning exhorbitantly.

Semaphore Mobile Application Developers are also experts in creating, developing and launching innovative iPhone mobile applications with the world wide demand and use of utility software for the iPhone by users. They are masters of iPhone Apps Development, iPhone Business & Sales Application Development, iPhone Games Development, iPhone Widget Development, iPhone Theme, Mock, Icon, Designing, Web Service Integration and iPhone Mobile Website Development.

Article Source: http://EzineArticles.com/3318058

Ho To Become Familiar With iPhone Application Development

The smart phone has become a necessity in life for most people, and you can imagine how much money has been spent not only on the phones themselves, but also on the apps that have been downloaded on each one. If you have ever played a game, or used an app that you thought you could have created or improved upon, iPhone application development could be an excellent way to use your creativity and make money.

On average, iPhone users purchase and download 10 apps per month, and ipod touch users purchase an average of eighteen per month. For both of these devices the average of free downloaded apps is between eight and sixteen per month. The free downloads are a great way to practice and expand on your ideas for applications, and it also lets you see how popular your idea is, and how many people wanted your app on their phone. If you do decide to sell your app for a price, and it succeeds, then you can become part of the industry that makes millions of dollars worth of applications every month.

You need to have a few things ready before you start the developing process, and the first thing you need is an idea. You also need to have an Intel base Mac computer, SDK (software development kit) and an iPhone simulator. All of these features can be downloaded to your computer, but eventually it would benefit you to get your own phone or iPod touch so you can see how the app runs on the actual device.

First of all, you can't do any iPhone development without SDK, and you can download this software for free at the apple developer website. When you get to the website you need to click on the Dev Center tab, and become a registered iPhone developer. In the Dev Center you will find information for documentation, sample codes and this is where you will find the button to download SDK.

After downloading, the most important content in your folder will be the Xcode, because this is the foundation for building applications. When you open the Developer application, drag Xcode to dock, and you are ready to start.

Click on Xcode and when the window opens up, you will have your interface builder in front of you. Go to the file tab and use the drop down menu and select "New Project". You will then be given options for different templates, specific to the type of app you want to design. The best option for beginners is the Window based Application, and after you choose this you can start to build your app by applying labels and texts.

Next, you need to start coding, this will always seem confusing at first, but it only takes a small amount of time to get used to the language. Objection C is the language used to create all iPhone app programming. Basic codes connect an IB outlet to a UI label, adding another IB outlet for your main text field, and then adding an IB action to your buttons.

If you have an idea for an app, spend the time to learn the coding and programming for iPhone application development, and watch as your ideas and talent appear in the daily lives of others.

Article Source: http://EzineArticles.com/6405502

How To Develop iPhone Apps

One of the most basic needs knowing how to develop iPhone apps is having an idea that is unique in some way. There is no point spending time and energy creating an app when there is a dozen or more apps already out there that perform the exact same purpose.

Maybe you have an idea for an app that solves a problem, or an idea that caters for a specific group of people, such as diehard fans of a particular movie, or a type of food. You may want to develop a better version of a popular app that is already out there, like adding more features, or combining the features of two or more apps into a single one. Finally, something that appeals to peoples sense of humor is always popular, as long as the jokes are not stale.

How To Develop iPhone Apps - Apple iPhone Developer Program

How to make an app? What do you need? iPhone application development requires you to join the Apple iPhone Developer Program. This is the expensive part of the process, but if you plan on creating an app to make money, then this is an investment. Currently, the cost of joining the program is $99.

As well as joining the program it is important that you have either an iPhone (or iPod touch) or an iPad, depending on which you want to develop the app for. You need to download a copy of the iPhone SDK, and have somewhere to write down ideas and plans.

One suggestion for iPhone application development is to work in a team. Rather than trying to cover all aspects of design yourself, consider recruiting people with different talents, this will make the process easier and a lot less complicated.

Regardless of whether you want to make the app on your own or as a team, you need the following skills for making an app using the Objective C coding. You will need knowledge of what does and does not work in iPhone apps, where the market is at, what its functionality will be. You also need to be able to do the coding work, design the GUI, drawing any required images and promoting the finished app.

How To Develop iPhone apps - Other Programs

Knowing coding is not essential for developing an iPhone app. A number of tools have been released by various online companies that allow you to develop apps using drag-and-drop techniques, even templates, to create apps. Some of these cost, others are free but take a percentage of your app profits.

It is important to note that once you submit your app to the App Store, Apple has complete distribution rights.

Article Source: http://EzineArticles.com/6499283

Iphone Camera

TheiPhone camera features are impressive for a camera phone, including 2 megapixels, fabulous image image management software, the ability to sync with images on your computer and the ability to email images. Here is a breakdown of the Apple iPhone's camera.

Compare Prices on the iPhone
iPhone image quality
The Apple iPhone's camera features 2 megapixels. This isn't exactly hot, but it's better than most camera phones on the market (many of which have 1.3 megapixels at best, and even more have less than a megapixel). Don't expect to make great prints, but these pictures are fine for email and Web sharing.
iPhone Image Management
Most camera phones have only the most basic of image management software, usually just featuring the ability to review, delete, save and send images. The iPhone goes much further.

The software features playlist-like galleries of images by subject, and you can crop and send phones right on-screen. You can use photos as wallpaper, email them to friends or assign them to a phonebook contact. The 3.5-inch display screen allows you to actually see your photos on-screen, instead of squinting at tiny images.
Sharing pictures with iPhone
A key feature of the iPhone is the ability to sync it with your computer to move images onto the iPhone. The iPhone, with a choice between 4GB and 8GB, can hold a decent number of images, especially if they are not from high-megapixel cameras or have been resized.

Iphone Battery

The iPhone features an internal rechargeable battery. Like an iPod, but unlike most other mobile phones, the battery is not user-replaceable. The iPhone can be charged when connected to a computer for syncing across the included USB to dock connector cable, similar to charging an iPod. Alternatively, a USB to AC adapter can be connected to the cable to charge directly from an AC outlet. A number of third-party accessories are also available.

Apple runs tests on preproduction units to determine battery life. Apple's website says that the battery life "is designed to retain up to 80 percent of its original capacity after 400 full charge and discharge cycles", which is comparable to iPod batteries.

The battery life of early models of the iPhone has been criticized by several technology journalists as insufficient and less than Apple's claims. This is also reflected by a J. D. Power and Associates customer satisfaction survey, which gave the "battery aspects" of the iPhone 3G its lowest rating of 2 out of 5 stars.

If the battery malfunctions or dies prematurely, the phone can be returned to Apple and replaced for free while still under warranty. The warranty lasts one year from purchase and can be extended to two years with AppleCare. Though the battery replacement service and its pricing was not made known to buyers until the day the product was launched, it is similar to how Apple (and third parties) replace batteries for iPods. The Foundation for Taxpayer and Consumer Rights, a consumer advocate group, has sent a complaint to Apple and AT&T over the fee that consumers have to pay to have the battery replaced. Since July 2007, third-party battery replacement kits have been available at a much lower price than Apple's own battery replacement program. These kits often include a small screwdriver and an instruction leaflet, but as with many newer iPod models the battery in the original iPhone has been soldered in. Therefore a soldering iron is required to install the new battery. The iPhone 3G uses a different battery fitted with a connector that is easier to replace.

Iphone Audio and output

The bottom of the iPhone sports a speaker (left) and a microphone (right) flanking the dock connector. One loudspeaker is located above the screen as an earpiece, and another is located on the left side of the bottom of the unit, opposite a microphone on the bottom-right. The iPhone 4 includes an additional microphone at the top of the unit for noise cancellation, and switches the placement of the microphone and speaker on the base on the unit—the speaker is on the right. Volume controls are located on the left side of all iPhone models and as a slider in the iPod application.

The 3.5 mm TRRS connector for the headphones is located on the top left corner of the device. The headphone socket on the original iPhone is recessed into the casing, making it incompatible with most headsets without the use of an adapter. Subsequent generations eliminated the issue by using a flush-mounted headphone socket. Cars equipped with an auxiliary jack allow for handsfree use of the iPhone while driving as a substitute for Bluetooth.

While the iPhone is compatible with normal headphones, Apple provides a headset with additional functionality. A multipurpose button near the microphone can be used to play or pause music, skip tracks, and answer or end phone calls without touching the iPhone. A small number of third-party headsets specifically designed for the iPhone also include the microphone and control button. The current headsets also provide volume controls, which are only compatible with more recent models. These features are achieved by a fourth ring in the audio jack that carries this extra information.

The built-in Bluetooth 2.x+EDR supports wireless earpieces and headphones, which requires the HSP profile. Stereo audio was added in the 3.0 update for hardware that supports A2DP. While non-sanctioned third-party solutions exist, the iPhone does not officially support the OBEX file transfer protocol. The lack of these profiles prevents iPhone users from exchanging multimedia files, such as pictures, music and videos, with other bluetooth-enabled cell phones.

Composite or component video at up to 576i and stereo audio can be output from the dock connector using an adapter sold by Apple. iPhone 4 also supports 1024x768 VGA output via a dock adapter. The iPhone did not support voice recording until the 3.0 software update.

Iphone Screen and input

The touchscreen is a 9 cm (3.5 in) liquid crystal display with scratch-resistant

glass. The capacitive touchscreen is designed for a bare finger, or multiple fingers

for multi-touch sensing. The screens on the first three generations have a resolution

of 320 × 480 (HVGA) at 163 ppi, while that of iPhone 4 has a resolution of 640 × 960 at 326 ppi.

The touch and gesture features of the iPhone are based on technology originally

developed by FingerWorks. Most gloves and styluses prevent the necessary

electrical conductivity; however, capacitive styli can be used with iPhone's

finger-touch screen. The iPhone 3GS and later also feature a fingerprint-resistant

oleophobic coating.

The iPhone has a minimal hardware user interface, featuring only four or five

buttons, depending on the generation. The only physical menu button is situated

directly below the display, and is called the "Home button" because it closes the

active app and navigates to the home screen of the interface. The home button is

denoted not by a house, as on many other similar devices, but a rounded square,

reminiscent of the shape of icons on the home screen. A multifunction sleep/wake

button is located on the top of the device. It serves as the unit's power button,

and also controls phone calls. When a call is received, pressing the sleep/wake

button once silences the ringtone, and when pressed twice transfers the call to

voicemail. Situated on the left spine are the volume adjustment controls. The

iPhone 4 has two separate circular buttons to increase and decrease the volume;

all earlier models house two switches under a single plastic panel, known as a

rocker switch, which could reasonably be counted as either one or two buttons.

Directly above the volume controls is a silence switch that mutes all sound when

engaged. All buttons except Home were made of plastic on the original iPhone and

metal on all later models. The touchscreen furnishes the remainder of the user

interface.

Your Iphone Introduction

The iPhone is a line of Internet- and multimedia-enabled smartphones designed and

marketed by Apple. The first iPhone was unveiled by Apple CEO Steve Jobs on

January 9, 2007 and released on June 29, 2007. The 5th generation iPhone is

expected to be globally released in Q3 2011 inline with the release of iOS 5.0,

the Apple operating system for handheld devices.

An iPhone can function as a video camera , a camera phone, a portable media

player, and an Internet client with email and web browsing capabilities, can send

texts and receive visual voicemail, and has both Wi-Fi and 3G connectivity. The

user interface is built around the device's multi-touch screen, including a

virtual keyboard rather than a physical one. Third-party as well as Apple

application software is available from the App Store, which launched in mid-2008

and now has over 425,000 "apps" approved by Apple. These apps have diverse

functionalities, including games, reference, GPS navigation, social networking,

security and advertising for television shows, films, and celebrities.

There are four generations of iPhone models, each accompanied by one of the four

major releases of iOS . The original iPhone was a GSM phone that established

design precedents like screen size and button placement that have persisted

through all models. The iPhone 3G added 3G cellular network capabilities and A-GPS

location. The iPhone 3GS added a compass, faster processor, and higher resolution

camera, including video recording at 480p. The iPhone 4 has a rear facing camera

(720p video) and a front facing camera (at a lower resolution) for FaceTime video

calling and for use in other apps like Skype. The phone also featured a higher-

resolution display; it was released on June 24, 2010. In the U.S., AT&T was the

only authorized carrier until February 10, 2011, when a CDMA version of the iPhone

4 launched for Verizon.