The Analog world, is a world of waves, and is present in the natural world. It can represent many physical things from sound, to vibration and is a continuously changing measure or quantity.
Some examples of this include, sound, light, temperature and many, many more.
Our analog world in electronics is interested in how to measure electric charge as it moves through a wire. It is here that we introduce our second actor Volts or Voltage named after the physicist Alessandro Volta .