1 Conduction is the transfer of thermal energy through direct contact between particles of a substance, without moving the particles to a new location.
iPhone (/ËaÉªfoÊn/ EYE-fohn) is a line of smartphones designed and marketed by Apple Inc. They run Apple's iOS mobile operating system. The first generation iPhone was released on June 29, 2007; the most recent iPhone model is the iPhone 7, which was unveiled at a special event on September 7, 2016. The user interface is built around the device's multi-touch screen, including a virtual keyboard.
Instead, Apple designed and built not one but three different early versions of the iPhone in 2005 and 2006. One person who worked on the project thinks Apple then made six fully working prototypes of the device it ultimately sold â each with its own set of hardware, software and design tweaks.