This chapter is devoted to analyzing the various effects of magnetic recording technologies on other existing related technologies.


The consumer electronics industry took shape in 1920 with the advent of radio broadcasting in the United States, as the first radio receiving sets were made available to consumers in the market. It was popularly known as the radio industry then. The word "electronics" came into common use in the mid-1940s, as more enthusiasts who were familiar with terms such as "earphones," "B-battery," "cat's whiskers," and "crystal set," would not cease to wonder at these surprising advancements in home entertainment.