iPhone is a smartphone designed and distributed by Apple Inc. The first generation iPhone was announced on January 9, 2007 by Apple's President Steve Jobs, although official sales began on June 29, 2007. It was the first generation of the iPhone 2G, but later it was upgraded from version 2 and later to 3G. All versions are run by iOS, Apple's exclusively mobile operating system for iPhone.
The iPhone has a 3.5-inch scratch-resistant capacitive touch screen. Most of the user inputs are enabled by this touchscreen and hardware hardware is limited by only 4 buttons. There is a proxy sensor that detects the position of the phone and an accelerometer to detect rotation of the phone. The first generation iPhone lacks the GPS feature, though later the A-GPS will go to the iPhone.
The iPhone provides Bluetooth 2.x + EDR for wireless headphones and other accessories but does not allow users to share multimedia files over Bluetooth. For better music experience, the iPhone has a standard 3.5 mm audio connector.
According to official regulations, the first generation iPhone battery supports 250 hours of standby, 8 hours of talk time and 24-hour music while the latest iPhone version, iPhone 4 300 hours of standby, 24 hours of music, 12 hours of 2G and 5 hours of 3G talk time.
The first two versions of the iPhone are a 2MP fixed-focus camera. The 3GS has a 3.2 megapixel camera, and the iPhone 4 has a 5 megapixel video camera. The iPhone 4 camera has a LED flash, high ISO sensitivity and HD quality.
iPhone does not support external storage card. It has a large internal storage space, many versions are between 4GB and 32GB.
For the best flexibility, the iPhone interface and software are designed specifically for the iPhone operating system. The iPhone includes a number of included software, such as a digital compass, map, calculator, web browser, email program, director and much more. It also supports 3rd party software. It can be directly integrated with Apple stores and multimedia sharing and social networking.
Your iPhone has basic features such as conference call, caller ID, caller ID, and other network services. The first-generation iPhone only supports version 2G, but the later version also includes faster data rates. The iPhone 3G has UMTS and HSDPA connections of 3.6 Mbit / s, but the iPhone 3GS supports HSDPA 7.2 Mbps connectivity.
Apple's iPhone is a revolutionary new mobile phone in the mobile phone industry. This has dramatically changed the user interface and mobile phone users' performance across the mobile world.