What is iPhone(1st generation)

The iPhone  is a line of smartphones designed and marketed by Apple Inc. It runs Apple's iOS mobile operating system, originally named "iPhone OS". The first iPhone was released on June 29, 2007; the most recent iPhone, the sixth-generation iPhone 5, was released on September 21, 2012. The user interface is built around the device's multi-touch screen, including a virtual keyboard rather than a physical one. 

It says a lot about how good the iPhone is that the device isn’t a disappointment. In fact, more than just not disappointing, the iPhone is, more or less, a joy to use.

By now, you probably know the basics of the iPhone: it combines a cell phone with very good call quality, an iPod with some lovely new interface options, a well-integrated PDA, and Internet device that offers web browsing, email, and web application support.

And it does these things remarkably well. Each feature of the iPhone – from phone to iPod, from email to calendar — is, at worst, very good. Some of the features are excellent. Still, it’s not perfect. Battery life and network speed need improvement, among other things. Still, the good far outweighs the bad.

The iPhone is packed with the small, smart touches that creates raving fans.

• When listening to music and a call comes in, the music fades out and the ringer fades in. A simple click of the headphones’ attached mic answers the call. End the call by clicking the mic again and the music fades back in from where it left off.
• The multitouch interface in the web browser allows users to zoom in on items by tapping the screen with two fingers and then pulling in opposite directions. This is spectacular and well implemented. I believe the iPhone is the first major consumer application of multitouch; we should see a lot more of it in the future.
• The SMS text messaging feature shows your conversation in the form of an instant messaging session, making it easy to keep track of what’s being said.
• The iPhone automatically switches screen orientation from portrait to landscape when you rotate the device.
• When you put the phone up to your head to make a call, the screen shuts off. When you take it away to end the call, the screen lights up again.
• Three-way calls can be initiated with just a few button clicks, offering the simplest three-way calling feature I’ve seen.

Despite these flaws, the iPhone has pushed the mobile phone/wireless Internet device space forward by leaps and bounds. From the first encounter with the iPhone’s beautiful, high-resolution display (which frequently leaves people speechless – it looks that good) to in-depth use over many days, the iPhone is a great advance. And though it has issues that need to be fixed in future models, we may well look back at the iPhone someday as a major milestone in the history of technology.