Simplify the following text for a Grade 10 native English-speaking person.
Original: Electronics engineering deals with implementation of applications , principles and algorithms developed within many related fields , for example solid-state physics , radio engineering , telecommunications , control systems , signal processing , systems engineering , computer engineering , instrumentation engineering , electric power control , robotics , and many others .
Simplified: Before the second world war , electronic engineering was commonly known as a ` radio engineering ' . At that time , studying radio engineering at a university was part of a physics degree .