This article explains how to set volume in iOS 7 and iOS 8 for music, ringer (iPhone only), alarm, and Siri on iPhone, iPad (Mini), and iPod Touch. There are three different volume settings on iOS devices which can make setting the correct volume a little tricky.
Standard-definition television can only display 480 lines. The Panasonic television followed NHK's standards -- an analog signal that packed more information than traditional television signals. By the 1980s, NHK had developed the technology to the point that it was time to shop around for other customers.
The invention of color television standards is part of the history of television, and is described in the technology of television. In its most basic form, a color broadcast can be created by broadcasting three monochrome images, one each in the three colors of red, green, and blue (RGB).