Here is our story: we were searching what does lock sound do because for the past few weeks, sound stopped working in my son's games--just games, like Asphalt 8, Minecraft, etc., but not other apps--I can still play the podcasts without any problem. I checked all the Sound settings and couldn't figure out why.
When was the first touchscreen phone invented? The first touchscreen phone was launched in 1992 by IBM.The IBM Simon is also referred as the first smartphone.Simon is the first smartphone to be incorporated with the features of a PDA.
Apple wasn't the first with a touch screen phone. Apple was the first with a touch screen phone done correctly. There's more to a touch screen than simple touch. Years of research went into developing the software to 'read' the gestures being swiped across the surface of the glass, developing the right mix of cost/performance, and putting that entire input system into effect as a means of controlling an operating system.