Phonetic Writing is the first information communications revolution. It's first time that people are start phonetic writing and it was very helpful for mass media because it kinda change the world's mass media. As people can be written is mean that they can shared the information to others and that affect to the wider communication in many societies.
Printing is the second information communications revolution. It's the era that the printing press has began and it can make an awesome copper press, which is made the process much cheaper. And it's changed world's mass media by better manage space on each pages, so people can read and keep it easier than the past.
Computer Technology is the third information communications revolution. Computer technology was made a huge changed for world's mass media. First it made the source/sender become faster to the receiver, the internet has began in this era which is made our life became smoothly in many ways.
The reference from page16-17-18