... books, newspapers, magazines, recordings, radio, movies, television and the internet. With the explosion of digital communication technology in the late 20th and early 21st centuries, the question of what forms of media should be classified as "mass media" has become more prominent. For example, it is ... /or amplification of sound, often as music. This involves the use of audio equipment such as microphones, recording devices and loudspeakers. From early beginnings with the invention of the  phonograph  using purely mechanical techniques, the field has advanced with the invention o...

• Word Count: 4840
• Approx Pages: 19
• Grade Level: Undergraduate