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 Television was invented a lot earlier than you might think. The first electrically transmitted TV pictures were the work of J.L. Baird, who built his first TV system in 1926. J.L. Baird was Scottish, and was born in Helensburgh, Scotland.