Mar 04, 2015

iPhone OS (iOS) graphic user interface (GUI) - SMS application

"The iPhone ... is a line of smartphones designed and marketed by Apple Inc. It runs Apple's iOS mobile operating system. ... The interface is based around the home screen, a graphical list of available applications. iPhone applications normally run one at a time. Starting with the iPhone 4, a primitive version of multitasking came into play. Users could double click the home button to select...

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