iPhone

The iPhone is an internet-connected multimedia smartphone designed and marketed by Apple Inc. with a flush multi-touch screen and a minimal hardware interface. The device does not have a physical keyboard, so a virtual keyboard is rendered on the touch screen instead. The iPhone functions as a camera phone (including text messaging and visual voicemail), a portable media player (equivalent to an iPod), and Internet client (with email, web browsing, and local Wi-Fi connectivity). The first generation phone hardware was quad-band GSM with EDGE; the second generation also adds UMTS with HSDPA.

Apple announced the iPhone on January 9, 2007. The announcement was preceded by rumors and speculation that circulated for several months. The iPhone was initially introduced in the United States on June 29, 2007 and has since been introduced worldwide. It was named Time magazine's "Invention of the Year" in 2007. On July 11, 2008, the iPhone 3G was released. It supports faster 3G data speeds and Assisted GPS.

Features common to both versions

* Screen size: 3.5 in (89 mm)
* Screen resolution: 480×320 pixels at 163 ppi, with 3:2 aspect ratio
* Input devices: Multi-touch screen interface plus a "Home" button and "Sleep/Wake" located on the top of the iPhone.
* Built-in rechargeable, non-removable battery
* 2 megapixel camera
* Location finding by detection of cell towers and Wi-Fi networks
* Samsung S5L8900 (412 MHz ARM 1176 processor, PowerVR MBX 3D graphics co-processor)
* Memory: 128 MB DRAM
* Storage: 8 GB or 16 GB flash memory
* Operating System: iPhone OS
* Quad band GSM / GPRS / EDGE: GSM 850 / 900 / 1800 / 1900
* Wi-Fi (802.11b/g)
* Bluetooth 2.0 with EDR
* 20Hz to 20kHz frequency response (both internal and headset)