Response paper | Social Science homework help

You may see the attached file for the piece that I would like to seek for an answer. The questions: Read the selection from Postman and explain his argument on ‘media as epistemology’. What does he mean when he argues that media shape our epistemology? 
 
It should be a response paper style. You should not use other sources. All you need is read and answers  the questions in critical and logical way.